Modular drilling fluid routine performance detection system and testing method

Abstract

The present application relates to the technical field of drilling fluid conventional performance measurement, and is a modular drilling fluid conventional performance detection system and a testing method. The former includes a test dock with a box structure and sand content measurement function modules, rheological property measurement function modules, oil-water-solid phase measurement function modules and fluid loss performance measurement function modules arranged in the test dock from front to back at intervals. The present application has a reasonable and compact structure, can simultaneously test multiple properties of drilling fluid, and is convenient for observing, disassembling and maintaining the sand content measurement function modules, the rheological property measurement function modules, the oil-water-solid phase measurement function modules and the fluid loss performance measurement function modules. The present application can effectively solve the problems of the existing drilling fluid performance measurement equipment, such as multiple types of testing instruments, scattered functions, difficulty in carrying, large manual reading error, serious constraints on the development of automation in the measurement industry, informatization of drilling fluid technology and large-scale application of big data, and has the characteristics of safety, labor saving, high efficiency, good popularization and strong expansion.

Description

Technical Field

[0001] This invention relates to the field of conventional performance measurement technology for drilling fluids, and is a modular drilling fluid conventional performance testing system and testing method. Background Technology

[0002] Traditional methods for measuring drilling fluid performance involve using more than ten instruments, including densitometers, funnel viscometers, medium-pressure fluid loss meters, mud cake adhesion testers, six-speed rotational viscometers, solids analyzers, and sand content analyzers. This lengthy testing process cannot meet the requirements for collecting large amounts of drilling fluid performance data, hindering the automation and informatization of the drilling fluid technical service industry. This invention integrates automation technologies and introduces a modular design concept to redesign and combine drilling fluid performance testing instruments. The resulting invention is flexible, compact, and highly scalable, enabling fully automated repeated testing of routine drilling fluid performance. This significantly reduces personnel costs and labor intensity, making it highly valuable for widespread application. Summary of the Invention

[0003] This invention provides a modular drilling fluid conventional performance testing system and method, which overcomes the shortcomings of the prior art. It can effectively solve the problems of existing drilling fluid performance measurement equipment, such as the large variety of testing instruments, scattered functions, difficulty in carrying them, and large errors in manual reading, which seriously restrict the automation of the measurement industry, the informatization of drilling fluid technology, and the large-scale application of big data.

[0004] One of the technical solutions of the present invention is achieved through the following measures: a modular drilling fluid conventional performance testing system, including a test dock with a box structure and a sand content measurement module, a rheological property measurement module, an oil-water solid phase measurement module and a water loss performance measurement module arranged from front to back in the test dock;

[0005] The sand content measurement module includes a first slurry cup, a sand-distributing main tube, a first measuring cylinder, and a fixing frame. The first slurry cup is fixed to the upper right part of the fixing frame, and the first measuring cylinder is fixed to the lower left part of the fixing frame. The sand-distributing main tube is set on the fixing frame between the first slurry cup and the first measuring cylinder. A slurry cup flushing pipe is fixedly connected to the first slurry cup. A filter screen is horizontally fixed inside the sand-distributing main tube, dividing the interior of the sand-distributing main tube into an upper and lower chamber. Both the filter screen and the sand-distributing main tube are inclined from left to right. A gap is provided between the left end of the filter screen and the inner wall of the left end of the sand-distributing main tube. The drain port at the bottom of the first slurry cup is located at the filter screen. Inside the right inlet of the upper sand-separating main pipe, a cone plug sealing mechanism capable of opening and closing the bottom drain of the first slurry cup is provided at the bottom drain of the first slurry cup. An upper chamber opening and closing mechanism capable of opening and closing the left end of the upper chamber is provided at the upper left end of the filter screen. At least one upper flushing pipe is fixedly connected to the left end of the sand-separating main pipe corresponding to the upper chamber opening and closing mechanism. At least one lower flushing pipe is fixedly connected to the sand-separating main pipe corresponding to the lower chamber. A vibration motor is provided on the sand-separating main pipe. The left outlet of the sand-separating main pipe is connected to the upper inlet of the first measuring cylinder. A valve is fixedly installed at the lower outlet of the first measuring cylinder.

[0006] The rheological measurement module includes a viscosity testing mechanism, a rheological testing device, and a support frame. The viscosity testing mechanism includes a conical funnel and a mud tank. A grouting pipe is connected to the upper part of the conical funnel, and the bottom outlet of the conical funnel is fixed inside the mud tank. The conical funnel is equipped with a high-level monitoring module to detect when the mud level reaches the upper limit of the set value, and a low-level monitoring module to detect when the mud level drops to the lower limit of the set value. A funnel that can seal the bottom outlet of the conical funnel is fixedly installed at the bottom outlet. The sealing mechanism; the rheological testing mechanism includes an inner cylinder, a lower rotating cylinder, a rheological testing module, a vertical moving drive mechanism that can drive the lower rotating cylinder to move up and down, and a rotating drive mechanism that can drive the lower rotating cylinder to rotate. An inner cylinder shaft is fixed on the inner cylinder, and the upper part of the inner cylinder shaft is fixedly connected to the bearing support through a deformable part. The rheological testing module is fixed on the deformable part. One end of the rotating drive mechanism is connected to the lower rotating cylinder. A working hole is provided at the top of the mud tank, and the lower rotating cylinder can pass through the working hole up and down. The lower rotating cylinder is located outside the inner cylinder, and there is a gap between the lower rotating cylinder and the inner cylinder.

[0007] The oil-water-solid phase measurement module includes a first base, a second slurry cup, a stirring drive mechanism, a first drive mechanism, a second drive mechanism, a distillation tube, a central stake, and a second measuring cylinder. A hollow second slurry cup is fixedly installed on the left side of the first base. A first cup cover is sealed and fixedly installed on the upper end of the second slurry cup. A rotary joint is located above the first cup cover. A first mounting hole with internal and external communication is located in the center of the first cup cover. A central stake with a closed lower end is rotatably installed on the lower end of the rotary joint. The lower end of the central stake passes through the first mounting hole and is located at the lower part of the second slurry cup. Radially penetrating cleaning holes are discretely distributed on the outer side of the lower part of the central stake. A grouting pipe is fixedly connected to the upper left side of the second slurry cup. A first cup bottom is sealed and installed on the lower end of the second slurry cup. A heating element with its end extending from the lower end of the first cup bottom is located on the inner side of the upper part of the first cup bottom. A first fixing hole and a second fixing hole with internal and external communication are spaced apart on the lower end of the first cup cover. A temperature and humidity sensor connected to the heating element is sealed and fixedly installed in the first fixing hole. The sensor has a first measuring electrode for measuring the mud level in the second slurry cup and connected to the heating element, which is sealed and fixedly installed in the second fixing hole. The lower part of the first base is provided with a first driving mechanism that can move the bottom of the first cup up and down. The center of the bottom of the first cup is provided with a stirring hole that runs through the top and bottom. The lower part of the first base is fixedly installed with a stirring driving mechanism corresponding to the stirring hole. The upper end of the stirring shaft of the stirring driving mechanism passes through the stirring hole and is located below the central pile. The outer side of the upper part of the stirring shaft corresponding to the position above the bottom of the first cup is provided with several stirring teeth evenly distributed around the circumference. The right side of the first base is fixedly installed with a second measuring cylinder corresponding to the position to the right of the second slurry cup. The inner side of the upper end of the second measuring cylinder is provided with a second measuring electrode that can measure conductivity and a distillation tube connected to the upper end of the second slurry cup. The right side of the first base is provided with a second driving mechanism that can move the second measuring electrode up and down. The lower end of the second measuring cylinder is provided with a drain hole. The lower part of the first base is provided with a first waste liquid valve that can open and close the drain hole.

[0008] The water loss performance measurement module includes a second base, a mud cake generation component, a filter paper conveying component, a mud cake testing component, and a cleaning component. The second base has, from right to left, a mud cake generation component for generating mud cake from drilling fluid and a mud cake testing component for testing the thickness and viscosity coefficient of the mud cake. The second base also has a filter paper conveying component for conveying the mud cake generated by the mud cake generation component to the mud cake testing component. A cleaning component is located above the filter paper conveying component. The mud cake generation component includes a third slurry cup, a second cup lid, a second cup bottom, a locking screw, a locking gear, a locking motor, and a gear ring. A centrally located, vertically penetrating section is fixedly installed on the upper right side of the second base. The second cup cover of the grouting hole has a hollow third grout cup below it. At least three connecting ears are spaced circumferentially on the outer side of the upper end of the third grout cup. Each connecting ear has a locking threaded through hole at its upper end, and a locking screw is screwed into each locking threaded through hole. A fixing plate is fixedly installed on the outer side of the second cup cover corresponding to each connecting ear position. The upper end of each locking screw is rotatably installed with the corresponding fixing plate. A locking gear is fixedly installed on the outer side of the upper part of the locking screw corresponding to the lower side of each fixing plate. Several fixing ears are evenly distributed circumferentially on the outer side of the middle part of the third grout cup. A fixing ring is fixed on the outer side of the lower part of the third grout cup. The side is provided with a connecting through hole corresponding to the fixing lug. Each fixing lug at the position of the connecting through hole has a guide hole running vertically through it. A sliding shaft with its lower end passing through the corresponding connecting through hole and then fixed to a limit block is fitted into each guide hole. A guide gear is fixedly installed on the outer side of the upper part of the sliding shaft at the position above each fixing lug. A compression spring is provided between the outer side of the lower part of the sliding shaft at the position below each fixing lug and the corresponding position on the upper side of the fixing ring. A locking motor is fixedly installed in the middle of the second base at the position of the leftmost sliding shaft. A locking drive gear is fixedly installed on the outer side of the upper end of the output shaft of the locking motor. The locking drive gear and the upper part of the leftmost guide gear are connected by a... A synchronous belt drive is connected. A gear ring that meshes with all locking gears and all guide gears is fitted on the outer side of the lower part of the third cup. A corresponding second cup bottom is provided on the lower side of the third cup. The right side of the filter paper conveying assembly is located between the upper side of the second cup bottom and the lower side of the third cup. A lifting drive mechanism that can drive the second cup bottom to move up and down is provided on the lower part of the second base. A filter hole that runs through the upper and lower parts is provided in the center of the second cup bottom. A filter tube is sealed and fixedly installed in the filter hole. A drain valve is provided on the filter tube. A third measuring cylinder is fixedly installed on the inner side of the lower part of the second base corresponding to the lower side of the filter tube. A drain hole is provided at the lower end of the third measuring cylinder. A second waste liquid valve that can open and close the drain hole is provided on the lower part of the second base.

[0009] The left side of the test dock is equipped with a through observation hole, and inside the observation hole are a first observation baffle, a second observation baffle, a third observation baffle, and a fourth observation baffle, which correspond to the sand content measurement function module, the rheological property measurement function module, the oil-water solid phase measurement function module, and the water loss performance measurement function module, respectively.

[0010] The following are further optimizations and / or improvements to one of the above-mentioned technical solutions:

[0011] The aforementioned sand content measurement module may also include a control unit. The valve is an electric valve. Liquid level detection modules are respectively installed in the first slurry cup and the first measuring cylinder. The control unit is electrically connected to the control end of the cone plug sealing mechanism, the control end of the upper chamber opening and closing mechanism, the liquid level detection module, and the electric valve.

[0012] The aforementioned funnel sealing mechanism may include a funnel cone plug, a cone plug rod, and a push rod drive mechanism capable of driving the cone plug rod to move left and right. The cone plug rod is L-shaped, and a cone rod operating elongated hole is provided at the top of the mud trough outside the conical funnel. The cone plug rod extends into the mud trough from the cone rod operating elongated hole at an incline. The short section of the L-shaped cone plug rod is fixedly connected to the bottom end of the funnel cone plug. The funnel cone plug is installed at the bottom outlet of the conical funnel. The push rod drive mechanism includes a push rod drive motor, and the power output end of the push rod drive motor is fixedly connected to the long section of the L-shaped cone plug rod.

[0013] A first liquid receiving box can be fitted on the outside of the aforementioned stirring drive mechanism. The first liquid receiving box has an annular first liquid receiving groove with an upward opening. The upper end of the first liquid receiving box is sealed and fixedly connected to the lower end of the first cup. Several first drain pipes are fixedly connected to the bottom of the first liquid receiving groove at intervals. The first drive mechanism includes a first drive motor, a first lead screw, a first lead screw nut, and a second support frame. The first drive motor is fixedly installed on the first base corresponding to the position between the first liquid receiving box and the stirring drive mechanism. The upper end of the output shaft of the first drive motor is connected to the lower end of the first lead screw located below the bottom of the first cup. An L-shaped second support frame is fixedly installed at the lower end of the first cup. A first lead screw nut screwed to the outer side of the upper end of the first lead screw is fixedly installed on the second support frame.

[0014] The aforementioned second drive mechanism may include a second drive motor, a second lead screw, a second lead screw nut, and a guide rod. The second drive motor is fixedly installed on the right side of the first base. The upper end of the second drive motor is connected to the lower end of the second lead screw, which is rotatably mounted on the first base. A vertically arranged guide rod is fixedly installed on the first base corresponding to the left position of the second lead screw. A sliding sleeve is coaxially fitted on the outside of the guide rod. A second lead screw nut, which is screwed to the outside of the second lead screw, is fixedly installed on the right side of the sliding sleeve. The left side of the sliding sleeve is fixedly connected to the upper end of the second measuring electrode.

[0015] The aforementioned filter paper conveying assembly may include a conveying motor, a drive shaft, a second synchronous belt, a third synchronous belt, and a filter screen belt. A forward-backward drive shaft is rotatably mounted on the lower part of the second base, corresponding to the lower right position of the second cup bottom. A first driven shaft is rotatably mounted on the left side of the second base, corresponding to the left of the drive shaft. A second driven shaft is rotatably mounted on the middle of the second base, corresponding to the upper left of the first driven shaft. A third driven shaft is rotatably mounted on the left side of the second base, corresponding to the position above the second driven shaft. A fourth driven shaft is rotatably mounted on the upper part of the second base, spaced left and right, corresponding to the position between the third driven shaft and the third pulp cup. The driving shaft and the fifth driven shaft are connected. A sixth driven shaft is rotatably mounted on the right side of the second base, corresponding to the position to the right of the second cup bottom. A transmission motor is fixedly mounted on the inner side of the lower part of the second base, corresponding to the position to the upper left of the driving shaft. The front end of the output shaft of the transmission motor is connected to the rear part of the driving shaft via a pulley drive. A front driving gear and a rear driving gear are fixedly mounted on the outer front and rear sides of the driving shaft, respectively. The outer front sides of the first, second, third, fourth, fifth, and sixth driven shafts are also fixedly mounted on... Equipped with a first front driven gear, a second front driven gear, a third front driven gear, a fourth front driven gear, a fifth front driven gear, and a sixth front driven gear; and with the first rear driven gear, a second rear driven gear, a third rear driven gear, a fourth rear driven gear, a fifth rear driven gear, and a sixth rear driven gear respectively fixedly mounted on the outer rear portion of the first driven shaft, the outer rear portion of the second driven shaft, the outer rear portion of the third driven shaft, the outer rear portion of the fourth driven shaft, the outer rear portion of the fifth driven shaft, and the outer rear portion of the sixth driven shaft; and a front driving gear, a first front driven gear, a second front driven gear, a third front driven gear, and a sixth front driven gear. Driven gears, fourth front driven gear, fifth front driven gear, and sixth front driven gear are connected together by a second synchronous belt drive. Rear driving gear, first rear driven gear, second rear driven gear, third rear driven gear, fourth rear driven gear, fifth rear driven gear, and sixth rear driven gear are connected together by a third synchronous belt drive with the same structure as the second synchronous belt and symmetrically distributed. A filter screen belt is fixedly installed on the upper right side of the outer ring surface of the second synchronous belt, located between the bottom of the third slurry cup and the bottom of the second cup. The rear part of the filter screen belt is fixedly installed at a position corresponding to the outer ring surface of the third synchronous belt.

[0016] The aforementioned cone plug sealing mechanism may include a cone plug and a vertical moving mechanism for driving the cone plug to move up and down. The outer wall of the cone plug is a conical surface that is smaller at the top and larger at the bottom. The cone plug is located at the bottom drain port of the first slurry cup. The vertical moving mechanism includes a lead screw stepper motor, a guide rail, and a sliding sleeve that can slide up and down the guide rail. The lead screw stepper motor is fixed on a fixed frame on the left side of the sand separating main tube, and the guide rail is fixed on a fixed frame on the right side of the lead screw stepper motor. A nut is installed on the outer side of the lead screw of the lead screw stepper motor. The left side of the nut is fixedly connected to the right end of the cone plug through a connecting part, and the right side of the nut is fixedly connected to the sliding sleeve. The control unit adopts a first microcontroller. The first microcontroller is electrically connected to the control terminal of the lead screw stepper motor, the control terminal of the digital servo motor, the liquid level detection module, and the electric valve.

[0017] The aforementioned vertical movement drive mechanism may include a through-type lead screw stepper motor, a pair of first slide rails, and a first support frame. The left end of the first support frame is fixedly connected to the lower rotating cylinder. The pair of first slide rails are respectively fixed on the front and rear sides of the support bracket. The ball nut of the through-type lead screw stepper motor is fixedly connected to the first support frame. The upper end of the ball screw of the through-type lead screw stepper motor is fixedly connected to the support bracket. The front and rear sides of the first support frame are respectively provided with sliders corresponding to the first slide rails.

[0018] The aforementioned rotation drive mechanism may include a stepper motor and a transmission mechanism. The stepper motor is fixed on the first support frame, and the power output end of the stepper motor is connected to the power input end of the transmission mechanism. The transmission mechanism includes a driving pulley, a driven pulley, and a transmission belt. The driving pulley is installed on the power output end of the stepper motor, and the driven pulley is fixed on the outside of the lower rotating drum. The driving pulley and the driven pulley are connected by a transmission belt.

[0019] At least one flushing pipe can be connected to the top of the conical funnel, and the outlet of the flushing pipe is tangent to the inner wall of the conical funnel.

[0020] A brush can be fixedly installed on the inner cylinder shaft above the inner cylinder via a bearing, and at least one outer cylinder flushing pipe that can flush the inner wall of the outer cylinder is distributed along the circumference on the upper outer side of the brush.

[0021] The inner wall of the lower end of the second slurry cup can be a conical surface that is smaller at the top and larger at the bottom. The outer side of the bottom of the first cup matches the inner wall of the lower end of the second slurry cup. The outer diameter of the first liquid receiving groove is not less than the inner diameter of the lower end of the second slurry cup. A U-shaped second liquid receiving box with an opening to the left is fixedly installed on the lower part of the first base corresponding to the position below the first liquid receiving box. The second liquid receiving box has a U-shaped second liquid receiving groove with an opening to the top. The lower end of each first drain pipe is located in the second liquid receiving groove. Several second drain pipes are fixedly connected to the bottom of the second liquid receiving groove at intervals. A fixed seat with its upper end fixedly installed together with the lower side of the stirring drive mechanism is fixedly installed on the inner side of the second liquid receiving box. A mounting seat is fixedly installed on the lower part of the first base corresponding to the position to the left of the fixed seat. The upper side of the mounting seat is fixedly installed together with the lower side of the first drive motor. A third liquid receiving box is fixedly installed on the inner side of the lower part of the first base corresponding to the position below the first waste liquid valve. A third drain pipe is fixedly connected to the lower right side of the third liquid receiving box.

[0022] The aforementioned mud cake testing assembly may include a test base, a first test frame, a second test frame, a first test motor, a second test motor, an electric push rod, a test plate, a sticky block, and a control unit. A test base located above the filter belt is fixedly installed on the upper left side of the second base. The first test frame is slidably installed along the upper edge of the test base. The upper part of the first test frame has a through-hole test screw hole, into which a test screw is screwed. The first test motor is fixedly installed on the right side of the test base, with its output shaft connected to the lower end of the test screw. The second test frame is fixedly installed on the rear left side of the first test frame, with the second test motor fixedly installed on it. A winding post, whose right end is connected to the left end of the output shaft of the second test motor, is rotatably installed on the upper part of the second test frame. A take-up and release block is fixedly installed on the lower part of the second test frame corresponding to the position below the winding post. The lower side of the take-up and release block has a downward-opening, through-hole storage slot. Two through holes, each extending to the bottom wall of the storage slot, are spaced apart at the upper end of the take-up and release block. Each threaded hole contains a take-up rope, the first end of which is wound several times and fixedly installed with the corresponding position of the winding post. The second end of each take-up rope is fixedly installed with the upper side of the adhesive block that matches the upper part of the storage groove. Each threaded hole has an induction magnet fitted on the outside of the take-up rope. A thickness probe with its lower end below the adhesive block is fixedly installed on the lower side of the second test frame corresponding to the right position of the take-up block. A test plate with its upper side in contact with the upper inner ring surface of the filter belt is installed on the second base corresponding to the position between the third driven shaft and the fourth driven shaft. The front left side and rear left side of the test plate are fixedly installed with hinge ears that are rotatably installed with the corresponding position of the third driven shaft. An electric push rod is hinged between the lower right side of the test plate and the inner left side of the second base. A gyroscope and a Hall sensor corresponding to the induction magnet are spaced apart on the lower left side of the test plate. The thickness probe, gyroscope and Hall sensor are all electrically connected to the control unit. The control unit is electrically connected to the first test motor, the second test motor and the transmission motor respectively.

[0023] The aforementioned cleaning assembly may include a rotary joint, a central cylinder, a second cleaning motor, a cleaning box, and a second cleaning tube. A rotary joint is located above the second cup lid. A central cylinder with a sealed lower end is rotatably mounted on the lower end of the rotary joint. The lower end of the central cylinder passes through the grouting hole and is located inside the lower part of the third grout cup. Radially penetrating cleaning holes are discretely distributed on the outer lower part of the central cylinder. A second cleaning motor, electrically connected to the control unit, is fixedly mounted on the second base corresponding to the right side of the second cup lid. The upper end of the output shaft of the first cleaning motor is connected to the upper part of the central cylinder via a pulley drive. A first rotating shaft is rotatably mounted on the lower left side of the first test frame. The outer left side of the first rotating shaft is fixedly mounted to the upper right side of the cleaning box, which is sleeved on the outer lower part of the take-up block. A second cleaning tube is fixedly connected to the upper part of the cleaning box. A first crank arm, tilted to the left and lower right, is fixedly mounted on the outer lower part of the first rotating shaft. A second rotating shaft parallel to the first rotating shaft is fixedly mounted on the right side of the first crank arm. A rotating shaft is rotatably mounted on the left rear side of the test seat corresponding to the position above the second rotating shaft. The test fixture is equipped with a third rotating shaft running left and right. A first gear is fixedly installed on the outer left side of the third rotating shaft. A fourth rotating shaft parallel to the third rotating shaft is rotatably installed on the upper part of the test seat above the third rotating shaft. A second gear meshing with the first gear is fixedly installed on the outer left side of the fourth rotating shaft. A fixed sleeve is fixedly installed on the left side of the second gear. At least one actuating tooth is evenly distributed along the circumference on the outer side of the fixed sleeve. A second crank arm in a reverse Z-shape is installed on the outer left side of the third rotating shaft corresponding to the left side of the second gear. A first connecting arm is fitted on the outer side of the other end of the second crank arm. The lower end of the first connecting arm is hinged to a second connecting arm whose lower end is fitted on the outer rear part of the second rotating shaft. A pawl that enables the second gear to rotate unidirectionally is fixedly installed on the upper part of the first test frame. A rearward-opening limiting groove is provided on the lower rear part of the second test frame corresponding to the position below the pawl. A push rod with its rear end capable of swinging one of the actuating teeth and thus rotating the second gear is rotatably installed in the limiting groove. The upper front end of the push rod contacts the bottom wall of the front part of the limiting groove.

[0024] The inner wall of the lower end of the third cup can be a conical surface that is smaller at the top and larger at the bottom. The outer side of the bottom of the second cup matches the inner side of the lower end of the third cup. An annular collection box is fixedly installed on the lower side of the second cup. The collection box has an annular groove with an upward opening. The outer diameter of the annular groove is larger than the outer diameter of the bottom of the second cup. Several drain pipes are fixedly connected to the bottom of the collection box at intervals. The lifting drive mechanism includes a lifting screw, a mounting bracket, a support plate, a second slide rail, a guide rail, and a lifting motor electrically connected to the control unit. An L-shaped support plate is fixedly installed on the lower side of the second cup corresponding to the outer side of the filter tube. The lower part of the support plate has a threaded through hole. A mounting bracket is fixedly installed in the second base corresponding to the position below the support plate. A lifting motor is fixedly installed on the mounting bracket. The upper end of the output shaft of the lifting motor is connected to the lower end of the lifting screw screw screw screw screwed into the threaded through hole. Several second slide rails are evenly distributed around the outer side of the collection box at intervals. Each second slide rail has a guide groove that runs vertically through and opens outwards at its upper end. A guide rail that matches the guide groove is fixedly installed in the second base corresponding to each position of the second slide rail.

[0025] The aforementioned upper chamber opening and closing mechanism may include a digital servo motor and a gate. The digital servo motor is fixedly installed on the upper left side of the sand-dividing main pipe, and the gate is installed on the left end of the upper chamber via a rotating shaft. The power output end of the digital servo motor is connected to the rotating shaft.

[0026] The left outlet of the main sand separating tube can be connected to the upper inlet of the first measuring cylinder through a buffer tube. The left outlet of the main sand separating tube is tapered, wider at the top and narrower at the bottom, and the buffer tube is funnel-shaped.

[0027] The aforementioned rheological testing module may include strain gauges, the deformable parts are made of spring steel sheets, an electric mixer and a mud tank level electrode are installed on the mud tank, a drain outlet is installed at the bottom of the mud tank, the high level monitoring module is a high level electrode for monitoring high liquid levels, and the low level monitoring module is a low level electrode for monitoring low liquid levels.

[0028] The distillation tube may include a connecting section, a condensing section, and a manifold section. The left end of the connecting section is fixedly connected to the upper outer side of the second slurry cup. The right end of the connecting section is fixedly connected to the left end of the condensing section, which is inclined from left to right. The right end of the condensing section is fixedly connected to the upper end of the manifold section, which is vertically set and whose lower end is located inside the upper part of the second measuring cylinder. A first cleaning tube is fixedly connected to the connecting section. A solenoid valve is provided on the first cleaning tube. Several heat sinks are arranged sequentially from left to right along the axial direction on the outer side of the condensing section. Each heat sink is equipped with a cooling fan on the side away from the condensing section. Each cooling fan is connected to a temperature and humidity sensor.

[0029] A waste liquid box can be installed below the discharge end of the first measuring cylinder.

[0030] A slurry cap can be fixed to the top of the first slurry cup, and the slurry cup flushing pipe is installed on the slurry cap.

[0031] The aforementioned rheological measurement module may also include a second microcontroller, which is electrically connected to the control terminal of the through-type lead screw stepper motor, the control terminal of the stepper motor, the control terminal of the electric mixer, the push rod drive motor, the mud tank level electrode, the high-level electrode, and the low-level electrode.

[0032] The first cleaning motor is fixedly installed on the upper part of the first base corresponding to the left position of the second slurry cup. The outer side of the upper end of the output shaft of the first cleaning motor is connected to the outer side of the upper part of the center pile through a pulley drive.

[0033] The aforementioned sludge cake generating assembly may also include a pressure relief valve and a level gauge. The upper end of the second cup cover is provided with a pressure relief hole and a measuring hole that are spaced apart vertically. The lower end of the pressure relief valve is sealed and installed in the pressure relief hole, and the upper part of the level gauge is sealed and installed in the measuring hole. Both the pressure relief valve and the level gauge are electrically connected to the control unit. A host computer is fixedly installed on the upper left side of the test dock corresponding to the position above the observation hole. The host computer is connected to the control unit, the first microcontroller, and the second microcontroller.

[0034] The second technical solution of the present invention is achieved through the following measures: a test method for a modular drilling fluid conventional performance testing system, including a sand content measurement method, a funnel viscosity measurement method, a rheological property measurement method, an oil-water solid phase measurement method, a medium-pressure water loss measurement method, a mud cake thickness measurement method, and a mud cake viscosity coefficient measurement method;

[0035] The sand content measurement method is as follows: Step 1, sand collection: Inject the required amount of mud into the first slurry cup through the slurry cup flushing pipe. The liquid level detection module determines whether the required amount of mud has been injected. When the mud in the first slurry cup reaches the required amount, start the lead screw stepper motor. The cone plug moves downward under the drive of the lead screw stepper motor, and the drain port at the bottom of the first slurry cup is opened. The mud flows into the sand separating main tube through the drain port at the bottom of the first slurry cup. To ensure that the mud passes smoothly through the filter screen, the vibration motor above the sand separating main tube starts to vibrate at the same time as the mud is injected into the sand separating main tube. At the same time, clean water is injected through the upper flushing pipe and the lower flushing pipe to allow the mud to pass smoothly through the filter screen. The filtered sand is concentrated on the filter screen on the right side of the gate in the upper chamber. The cleaning liquid formed by washing the mud flows into the first measuring cylinder, and the electric valve at the lower end of the first measuring cylinder is opened. The cleaning fluid in the first measuring cylinder flows into the waste liquid box and is eventually discharged through the drain outlet of the waste liquid box. After the mud is washed away, the cone plug moves upward under the drive of the lead screw stepper motor, closing the drain outlet at the bottom of the first slurry cup, and proceeding to the next step; Step 2, sand falling and measurement: Close the electric valve at the lower end of the first measuring cylinder, close the drain outlet at the lower end of the first measuring cylinder, and control the rotating shaft to rotate clockwise by a certain angle, so that the gate opens to the left. After the gate opens, the filtered sand falls into the first measuring cylinder. Inject the required amount of clean water into the first slurry cup, open the drain outlet at the bottom of the first slurry cup, and simultaneously inject clean water through the upper flushing pipe and the lower flushing pipe to flush the sand on the right side of the gate and the sand on the filter screen into the first measuring cylinder. Measure the liquid level in the first measuring cylinder and compare it with the liquid level of the injected equal amount of clean water. The difference between the two volumes is the volume of the sand, and the sand content result is obtained;

[0036] The funnel viscosity measurement method is as follows: Slurry is injected into a conical funnel through a grouting pipe. The high-level electrode and low-level electrode measure the slurry level inside the funnel. The high-level electrode measures whether the slurry has reached the upper limit set value. When the conductivity of the high-level electrode changes drastically, it is determined that the liquid level has reached the upper limit set value. Then, the push rod drives the motor to move the cone plug rod to the right, causing the cone plug rod to open the funnel cone plug. After the funnel cone plug opens, the slurry in the conical funnel begins to flow out. Timing begins simultaneously with the slurry flowing out of the conical funnel. The slurry flows into the slurry tank below the conical funnel. During this period, the conductivity of the low-level electrode is used to determine whether the required amount of slurry has flowed out of the conical funnel. When the conductivity of the low-level electrode changes drastically, the liquid level has dropped to meet the condition for the required outflow. At this point, timing stops and the elapsed time is recorded. The funnel viscosity of the slurry is calculated based on the recorded time.

[0037] The rheological measurement method is as follows: All the mud in the conical funnel is discharged into the mud tank. The lower rotating cylinder is driven to the test position in the mud tank by the through-type screw stepper motor. The stepper motor drives the lower rotating cylinder to rotate at six different speeds. There is a gap between the lower rotating cylinder and the inner cylinder in the middle, which is filled with mud. When the lower rotating cylinder rotates, it will drive the mud to rotate. The mud will cause the inner cylinder to rotate and deflect due to its own viscosity, which will cause the spring steel sheet to bend and deform. The resistance of the strain gauge attached to the spring steel sheet changes and is converted into a torque deflection value. The rheological value measurement is completed.

[0038] The oil-water solid phase measurement method is as follows: Step 1, distillation: The slurry to be tested is injected into the second slurry cup through the injection pipe. Then, the heating element and the stirring drive mechanism are started simultaneously. The heating element heats the slurry to be tested, and the stirring drive mechanism drives the stirring teeth to stir the slurry to be tested. The temperature and humidity sensor monitors the temperature of the slurry to be tested and the humidity of the second slurry cup and controls the operation of the heating element; Step 2, measurement: The second drive mechanism drives the second measuring electrode to move up and down. When the conductivity measured by the second measuring electrode changes significantly, the lower end of the second measuring electrode is the oil-water interface. The position of the lower end of the second measuring electrode in the second measuring cylinder is recorded, and the volume of water or oil is calculated;

[0039] The medium-pressure water loss measurement method is as follows: Place filter paper on the filter screen at the bottom of the second cup. After the lifting motor drives the bottom of the second cup to move upward and seals with the lower end of the third cup, close the drain valve. Inject drilling fluid into the third cup through the drilling fluid pump. Start the locking motor. The locking motor drives the gear ring and locking screw to rotate. The locking screw drives the third cup to move upward and seals with the second cup cover. Then, the high-pressure air pump injects air into the third cup through the central cylinder and pressurizes it. Then, open the drain valve. Start timing when the first drop of filtrate drips through the lower end of the filter tube. Record the liquid level in the third measuring cylinder when the specified time is reached. If there is too much filtrate in the third measuring cylinder, after the filtrate level in the third measuring cylinder reaches a certain position, quickly open and close the second waste liquid valve, read the liquid level again, and the filtrate continues to drip. Record the liquid level again. If the filtrate level in the third measuring cylinder exceeds the specified position again, repeat the above actions. Finally, record all values ​​and calculate the total volume of filtrate.

[0040] The mud cake thickness measurement method is as follows: After the medium-pressure water loss measurement is completed, the pressure relief valve is opened to release the air pressure in the third mud cup. At the same time, the locking motor drives the locking screw to rotate in the opposite direction, opening the third mud cup and the second cup cover. Simultaneously, the lifting motor drives the lifting screw to rotate, causing the bottom of the second cup to descend. Excess drilling fluid will flow into the collection box around the bottom of the second cup. Under the third mud cup, the mud cake after releasing excess drilling fluid is placed on the filter paper of the filter belt. Driven by the second and third synchronous belts, the filter belt stops when it moves to the left below the cleaning box. The first test motor drives the test screw to drive the third mud cup. A test frame slides upward, and the push rod, after rising with the second test frame, lifts the lower front actuating teeth, causing the second gear and the first gear to rotate. Finally, the upper left side of the cleaning box swings downward. Then, the first test motor drives the test screw to slide the first test frame downward, causing the thickness probe to descend. The two poles at the lower end of the thickness probe are energized to analyze its conductivity. The conductivity changes drastically when it changes from air to water, and then changes slightly when it changes from water to drilling fluid. The difference between the position where the thickness probe descends and the position where it reaches the lowest point is the thickness of the mud cake.

[0041] The viscosity coefficient of the mud cake is measured as follows: After calculating the thickness of the mud cake, the second test motor drives the winding column to rotate, releasing the viscous block. After the viscous block falls onto the mud cake, the piston rod of the electric push rod extends, making the right end of the test plate higher than the left end. The gyroscope records the deflection angle of the test plate, and at the same time, the Hall sensor calculates the magnetic field of the sensing magnet. When the magnetic field changes, it indicates that the viscous block slides and displaces along the surface of the mud cake. At this time, the value of the gyroscope is recorded, which is the angle generated by the test plate, and the viscosity coefficient of the mud cake is calculated.

[0042] The following are further optimizations and / or improvements to the second technical solution of the above invention:

[0043] The above may also include cleaning work. The cleaning work of the sand content measurement function module is carried out as follows: Open the electric valve at the lower end of the first measuring cylinder and open the drain end at the lower end of the first measuring cylinder. The sand and clean water flow into the waste liquid box together. At this time, the drain port at the bottom of the first slurry cup, the gate, and the drain end at the lower end of the first measuring cylinder are all in the normally open state. Inject clean water into the slurry cup flushing pipe, the upper flushing pipe, and the lower flushing pipe. The clean water flows through the first slurry cup, the sand separating main pipe, the first measuring cylinder, and finally flows into the waste liquid box. Finally, it is discharged from the drain port of the waste liquid box. After cleaning, inject hot air into the slurry cup flushing pipe, the upper flushing pipe, and the lower flushing pipe. The hot air flows through the first slurry cup, the sand separating main pipe, and the first measuring cylinder to dry each working part. After drying, close the electric valve at the lower end of the first measuring cylinder, the drain port at the bottom of the first slurry cup, and the gate.

[0044] The cleaning of the rheological measurement module is performed as follows: The drain outlet of the mud tank is opened to discharge the tested mud. The stepper motor drives the lower drum to continue rotating. The through-type lead screw stepper motor is started, causing the lower drum to rise. The inner drum and brushes remain stationary. Simultaneously, the outer drum flushing pipe above the brushes begins to spray water. The lower drum rises to the cleaning position, directly facing the brushes. Clean water is used to rinse the brushes, which in turn clean the inner wall of the lower drum. The remaining slurry flows into the mud tank. At the same time, clean water is injected into the conical funnel through the flushing pipe. The clean water flows along the inner wall of the conical funnel, which is normally open. The flowing clean water directly enters the mud tank. When the clean water level in the mud tank reaches a certain point, the electric mixer on the mud tank begins to stir. The stirred clean water cleans the inner drum remaining in the mud tank. The cleaning waste liquid is discharged from the drain outlet of the mud tank. After emptying, the cleaning process is complete.

[0045] The cleaning of the oil-water solid phase measurement module is performed as follows: The second drive motor drives the second measuring electrode to rise, the first waste liquid valve is opened, and both the grouting pipe and the first cleaning pipe are connected to the water-air pump. Clean water is injected into the central pile after being pressurized by the water-air pump. At the same time, the first cleaning motor is started. The central pile rotates at a speed not exceeding 100 rpm for a period of time, and then the first cleaning motor is stopped. The stirring drive mechanism is started to drive the stirring teeth to repeatedly break up and dissolve the solidified mud residue. At the same time, the solenoid valve on the first cleaning pipe is opened, and clean water begins to clean the distillation tube. The cleaned liquid flows into the second measuring cylinder along the condensation section and the confluence section to clean the second measuring cylinder. Finally, the first drive motor is started, the bottom of the first cup moves down, and the liquid in the second slurry cup flows through the first receiving tank and the first receiving tank. After passing through the pipe, the second liquid receiving tank, and the second liquid receiving pipe, the liquid flows into the third liquid receiving box. The first waste liquid valve is opened, and the liquid in the second measuring cylinder flows into the third liquid receiving box. When the liquid has drained, the bottom of the first cup rises under the drive of the first drive motor, leaving a gap between it and the lower end of the second slurry cup. The first waste liquid valve and the solenoid valve on the first cleaning pipe are opened, and the water pump starts working. The heating element heats the gas, and the generated hot airflow enters the second slurry cup, the distillation tube, and the second measuring cylinder. When the hot airflow flows into the second slurry cup through the cleaning hole on the central pile, the first cleaning motor drives the central pile to rotate, causing the hot airflow to be evenly sprayed onto the inner wall of the second slurry cup. The first cleaning motor stops working, and the bottom of the first cup rises under the drive of the first drive motor and closes with the lower end of the second slurry cup. The solenoid valve on the first cleaning pipe and the first waste liquid valve are both closed.

[0046] The cleaning of the water loss performance measurement module is performed as follows: After the viscosity coefficient measurement is completed, the second test motor drives the winding column, pulling the viscous block upward and locking it into the storage slot at the lower end of the take-up block. The first test motor drives the test screw, causing the first test frame to rise again to the top. The push rod drives another toggle rod to rise, causing the cleaning box to reset and flip up. The first test motor drives the test screw, causing the first test frame to descend again, causing the take-up block and thickness probe to fall into the cleaning box. Finally, the second cleaning pipe is connected to a water source and begins spraying water to clean the viscous block and thickness probe. After cleaning, the first test frame rises again to the top, the cleaning box flips up, and the first test motor drives the test screw, causing the first test frame to descend again, causing the take-up block and thickness probe to fall to the correct position. The system is set to the working height. Simultaneously, the second and third synchronous belts pull the filter belt to rotate. A water pump injects clean water into the central cylinder, which is driven to rotate by the second cleaning motor. The clean water cleans the inner wall of the third cylinder through the cleaning holes on the central cylinder. The drain valve is opened to clean the third slurry cup, the third measuring cylinder, and the second waste liquid valve at the same time. The cleaned liquid flows into the collection box below. After the cleaning process is repeated several times, the water pump introduces hot air into the central cylinder. The hot air flows through the third slurry cup, filter tube, third measuring cylinder, and second waste liquid valve in sequence for drying. After drying, the filter belt moves the new filter paper between the bottom of the third slurry cup and the bottom of the second cup. The bottom of the second cup rises and clamps the filter paper. At the same time, the locking motor drives the locking screw to seal the third slurry cup and the second cup cover.

[0047] This invention features a reasonable and compact structure, enabling simultaneous testing of multiple properties of drilling fluids. It also facilitates the observation, disassembly, and maintenance of the sand content measurement module, rheological property measurement module, oil-water solid phase measurement module, and water loss performance measurement module. It effectively solves the problems of existing drilling fluid performance measurement equipment, such as the large variety of testing instruments, dispersed functions, difficulty in carrying them, and large errors in manual readings, which seriously restrict the automation of the measurement industry, the informatization of drilling fluid technology, and the large-scale application of big data. It is characterized by safety, labor-saving, high efficiency, good scalability, and strong scalability. Attached Figure Description

[0048] Appendix Figure 1 This is a schematic diagram of the main structure of Embodiment 1.

[0049] Appendix Figure 2 This is a schematic diagram of the left-side structure of Example 1.

[0050] Appendix Figure 3 This is a schematic diagram of the main structure of the sand content measurement function module in Example 1.

[0051] Appendix Figure 4 This is a schematic diagram of the main view partial cross-sectional structure of the sand content measurement function module in Example 1.

[0052] Appendix Figure 5 This is a schematic diagram of the main structure of the rheological measurement function module in Example 1.

[0053] Appendix Figure 6 For the appendix Figure 5 A partially enlarged cross-sectional view of the structure.

[0054] Appendix Figure 7 This is a three-dimensional structural diagram of the rheological measurement function module in Example 1.

[0055] Appendix Figure 8 This is a schematic diagram of the main structure of the oil-water solid phase measurement module in Example 1.

[0056] Appendix Figure 9 This is a top view of the oil-water solid phase measurement module in Example 1.

[0057] Appendix Figure 10 This is a right-side structural schematic diagram of the oil-water solid phase measurement function module in Example 1.

[0058] Appendix Figure 11 This is a three-dimensional structural diagram of the oil-water solid phase measurement function module with the third liquid receiving box removed in Example 1.

[0059] Appendix Figure 12 This is a cross-sectional view of the second slurry cup in the oil-water solid phase measurement module of Example 1.

[0060] Appendix Figure 13 This is a partial cross-sectional view of the main structure of the water loss performance measurement function module in Example 1.

[0061] Appendix Figure 14 This is a top view of the structure of the water loss performance measurement module in Example 1 after the rotary joint has been removed.

[0062] Appendix Figure 15 This is a three-dimensional structural diagram of the mud cake testing component of the water loss performance measurement function module in Example 1. Figure 1 .

[0063] Appendix Figure 16 This is a three-dimensional structural diagram of the mud cake testing component of the water loss performance measurement function module in Example 1. Figure 2 .

[0064] Appendix Figure 17 This is a rear-view enlarged cross-sectional schematic diagram of the mud cake test component of the water loss performance measurement function module in Example 1.

[0065] The codes in the attached diagram are as follows: 1a is the first slurry cup, 2a is the main sand-distributing pipe, 3a is the first measuring cylinder, 4a is the fixing frame, 5a is the slurry cup flushing pipe, 6a is the upper chamber, 7a is the lower chamber, 8a is the filter screen, 9a is the upper flushing pipe, 10a is the lower flushing pipe, 11a is the vibration motor, 12a is the valve, 13a is the conical plug, 14a is the lead screw stepper motor, 15a is the guide rail, 16a is the sliding sleeve, 17a is the nut, 18a is the connecting part, 19a is the digital servo motor, 20a is the gate, 21a is the buffer fitting, 22a is the waste liquid box, 23a is the slurry cover, 1b is the bearing support, 2b is the conical funnel, 3b is the mud tank, 4b is the grouting pipe, 5b is the inner cylinder, 6b is the lower rotating cylinder, 7b is the inner cylinder shaft, and 8b is the funnel conical plug. 9b is a conical plug rod; 10b is the conical rod operating elongated hole; 11b is a through-type lead screw stepper motor; 12b is the first slide rail; 13b is the first support frame; 14b is a slider; 15b is a stepper motor; 16b is a driven pulley; 17b is a transmission belt; 18b is a spring steel sheet; 19b is a flushing pipe; 20b is an outer cylinder flushing pipe; 21b is a brush; 22b is an electric mixer; 23b is a high-position electrode; 24b is a low-position electrode; 25b is a ball nut; 26b is a ball screw; 1c is the first base; 2c is the second slurry cup; 3c is the second measuring cylinder; 4c is a rotary joint; 5c is the first cup lid; 6c is the first cup bottom; 7c is a heating element; 8c is the first measuring electrode; 9c is the second measuring electrode; 10c is the second waste liquid valve. 11c is the center pile, 12c is the temperature and humidity sensor, 13c is the stirring drive mechanism, 14c is the stirring shaft, 15c is the stirring teeth, 16c is the fixed base, 17c is the first liquid receiving box, 18c is the second liquid receiving box, 19c is the third liquid receiving box, 20c is the first drain pipe, 21c is the second drain pipe, 22c is the third drain pipe, 23c is the guide rod, 24c is the sliding sleeve, 25c is the connecting section, 26c is the condensation section, 27c is the confluence section, 28c is the first cleaning pipe, 29c is the grouting pipe, 30c is the heat sink, 31c is the cooling fan, 32c is the first drive motor, 33c is the first lead screw, 34c is the first lead nut, 35c is the second support frame, 36c is the mounting base, 37c is the second drive motor, 3 8c is the second lead screw, 39c is the second lead nut, 40c is the first cleaning motor, 1d is the second base, 2d is the third slurry cup, 3d is the second cup cover, 4d is the second cup bottom, 5d is the fixing ring, 6d is the locking screw, 7d is the connecting ear, 8d is the fixing ear, 9d is the locking gear, 10d is the locking motor, 11d is the gear ring, 12d is the sliding shaft, 13d is the limit block, 14d is the guide gear, 15d is the locking drive gear, 16d is the first synchronous belt, 17d is the compression spring, 18d is the filter tube, 19d is the third measuring cylinder, 20d is the drain valve, 21d is the second waste liquid valve, 22d is the transmission motor, 23d is the drive shaft, 24d is the front drive gear, 25d is the first driven shaft, and 26d is the second driven shaft.27d is the third driven shaft, 28d is the fourth driven shaft, 29d is the fifth driven shaft, 30d is the sixth driven shaft, 31d is the second synchronous belt, 32d is the third synchronous belt, 33d is the filter belt, 34d is the test mount, 35d is the first test frame, 36d is the second test frame, 37d is the first test motor, 38d is the second test motor, 39d is the electric push rod, 40d is the test plate, 41d is the hinge lug, 42d is the test screw, 43d is the winding post, 44d is the take-up and release block, 45d is the adhesive block, 46d is the take-up and release rope, 47d is the thickness probe, 48d is the induction magnet, 49d is the gyroscope, 50d is the Hall sensor, 51d is the rotary joint, 52d is the center cylinder, 53d is the first cleaning motor, 54d is the rotary joint, 52d is the center cylinder, 53d is the first cleaning motor, 54d is the center cylinder, 55d is the center cylinder, 56d is the center cylinder, 57d is the first cleaning motor, 58d is the second synchronous belt, 39d is the third synchronous belt, 30d is the fourth synchronous belt, 31d is the fifth synchronous belt, 32d is the sixth synchronous belt, 33d is the fifth synchronous belt, 54d is the sixth synchronous belt, 55d is the seventh synchronous belt, 56d is the eighth synchronous belt, 57d is the ninth synchronous belt, 58d is the tenth synchronous belt, 59d is the twisting magnet, 50d is the gyroscope, 51d is the rotary joint, 52d is the center cylinder, 53d is the first cleaning motor, 54d is the tenth synchronous belt, 59d is d is the cleaning box, 55d is the second cleaning tube, 56d is the first rotating shaft, 57d is the second rotating shaft, 58d is the third rotating shaft, 59d is the fourth rotating shaft, 60d is the first gear, 61d is the second gear, 62d is the fixing sleeve, 63d is the actuating gear, 64d is the first crank arm, 65d is the second crank arm, 66d is the first connecting arm, 67d is the second connecting arm, 68d is the pawl, 69d is the push rod, 70d is the collection box, 71d is the drain pipe, 72d is the lifting motor, 73d is the lifting screw, 74d is the mounting bracket, 75d is the support plate, 76d is the second slide rail, 77d is the guide rail, 1e is the test dock, 2e is the first observation baffle, 3e is the second observation baffle, 4e is the third observation baffle, and 4e is the fourth observation baffle. Detailed Implementation

[0066] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0067] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0068] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0069] Example 1: As shown in the attached document Figures 1 to 2 As shown, the modular drilling fluid conventional performance testing system includes a test dock 1e with a box structure and a sand-bearing measurement module, a rheological measurement module, an oil-water solid phase measurement module, and a water loss performance measurement module arranged from front to back within the test dock 1e.

[0070] As attached Figures 3 to 4As shown, the sand content measurement module includes a first slurry cup 1a, a sand-distributing main tube 2a, a first measuring cylinder 3a, and a fixing frame 4a. The first slurry cup 1a is fixed to the upper right of the fixing frame 4a, and the first measuring cylinder 3a is fixed to the lower left of the fixing frame 4a. The sand-distributing main tube 2a is set on the fixing frame 4a between the first slurry cup 1a and the first measuring cylinder 3a. A slurry cup flushing pipe 5a is fixedly connected to the first slurry cup 1a. A filter screen 8a is horizontally fixed inside the sand-distributing main tube 2a, dividing the interior of the sand-distributing main tube 2a into an upper chamber 6a and a lower chamber 7a. Both the filter screen 8a and the sand-distributing main tube 2a are inclined from left to right. A gap is provided between the left end of the filter screen 8a and the inner wall of the left end of the sand-distributing main tube 2a. The bottom of the first slurry cup 1a is filled with... The liquid inlet is located inside the right inlet end of the sand-separating main pipe 2a above the filter screen 8a. A cone plug sealing mechanism capable of opening and closing the bottom drain of the first slurry cup 1a is provided at the bottom drain of the first slurry cup 1a. An upper chamber opening and closing mechanism capable of opening and closing the left end of the upper chamber 6a is provided at the upper left end of the filter screen 8a. At least one upper flushing pipe 9a is fixedly connected to the left end of the sand-separating main pipe 2a corresponding to the upper chamber opening and closing mechanism. At least one lower flushing pipe 10a is fixedly connected to the sand-separating main pipe 2a corresponding to the lower chamber 7a. A vibration motor 11a is provided on the sand-separating main pipe 2a. The left outlet end of the sand-separating main pipe 2a is connected to the upper inlet end of the first measuring cylinder 3a. A valve 12a is fixedly installed at the lower outlet end of the first measuring cylinder 3a.

[0071] According to the requirements, the digital servo motor 19a is a servo motor with a known existing structure, and the filter screen 8a has a mesh size of 200. The slurry feeding operation is controlled by a cone plug sealing mechanism, and the sand separated from the slurry is intercepted on the filter screen 8a by the upper chamber opening and closing mechanism. Subsequently, by opening the upper chamber opening and closing mechanism, the sand is flushed into the first measuring cylinder 3a for sand content measurement. After the sand content measurement is completed, the cone plug sealing mechanism and the upper chamber opening and closing mechanism are used to assist in the internal cleaning operation of the entire measuring instrument. The distance between the left end of the filter screen 8a and the left end of the sand separating main tube 2a is set to facilitate the opening and closing of the upper chamber opening and closing mechanism. The vibration motor 11a can make the sand separating main tube vibrate to facilitate the separation of slurry and sand. The inclined sand separating main tube 2a and filter screen 8a help to filter and separate the slurry, and at the same time, it helps to flush the intercepted and separated sand to the left side of the filter screen 8a during the filtration process. The inclination angle can be less than 30 degrees.

[0072] As attached Figures 5 to 7As shown, the rheological measurement functional module includes a viscosity testing mechanism, a rheological testing device, and a support bracket 1b. The viscosity testing mechanism includes a conical funnel 2b and a mud tank 3b. A grouting pipe 4b is connected to the upper part of the conical funnel 2b. The bottom outlet of the conical funnel 2b is fixed inside the mud tank 3b. A high-level monitoring module that can monitor when the mud level in the conical funnel 2b reaches the upper limit setting value and a low-level monitoring module that can monitor when the mud level in the conical funnel 2b drops to the lower limit setting value are respectively installed on the conical funnel 2b. A funnel plug that can seal the bottom outlet of the funnel is fixedly installed at the bottom outlet of the conical funnel 2b. The rheological testing mechanism includes an inner cylinder 5b, a lower rotating cylinder 6b, a rheological testing module, a vertical moving drive mechanism that can drive the lower rotating cylinder 6b to move up and down, and a rotating drive mechanism that can drive the lower rotating cylinder 6b to rotate. An inner cylinder shaft 7b is fixed on the inner cylinder 5b. The upper part of the inner cylinder shaft 7b is fixedly connected to the bearing bracket 1b through a deformable part. The rheological testing module is fixed on the deformable part. One end of the rotating drive mechanism is connected to the lower rotating cylinder 6b. A working hole is provided at the top of the mud tank 3b. The lower rotating cylinder 6b can pass through the working hole up and down. The lower rotating cylinder 6b is located outside the inner cylinder 5b, and there is a gap between the lower rotating cylinder 6b and the inner cylinder 5b.

[0073] This rheological measurement module integrates a viscosity testing mechanism and a rheological testing mechanism into one unit, combining the functions of viscosity testing and rheological testing. It has a compact structure and functions, is easy to carry, and can realize fully automated repeated testing of conventional drilling fluid properties with consistent repeatability. It greatly saves personnel costs and reduces the labor intensity of personnel, and has strong promotion and application value.

[0074] As attached Figures 8 to 12As shown, the oil-water solid phase measurement module includes a first base 1c, a second slurry cup 2c, a stirring drive mechanism 13c, a first drive mechanism, a second drive mechanism, a distillation tube, a center stake 11c, and a second measuring cylinder 3c. A hollow second slurry cup 2c is fixedly installed on the left side of the first base 1c. A first cup cover 5c is sealed and fixedly installed on the upper end of the second slurry cup 2c. A rotary joint 4 is provided above the first cup cover 5c. A first mounting hole with internal and external communication is provided in the center of the first cup cover 5c. A cylindrical center stake with a closed lower end is rotatably installed on the lower end of the rotary joint 4. 11c, the lower end of the center pile 11c is sealed and passes through the first mounting hole and is located below the second grout cup 2c. Radial cleaning holes are discretely distributed on the outer side of the lower part of the center pile 11c. A grouting pipe 29 is fixedly connected to the upper left side of the second grout cup 2c. A first cup bottom 6c is sealed and installed at the lower end of the second grout cup 2c. A heating element 7c with its end extending from the lower end of the first cup bottom 6c is provided on the inner side of the upper part of the first cup bottom 6c. A first fixing hole and a second fixing hole are spaced apart at the lower end of the first cup cover 5c, and a temperature and humidity control device connected to the heating element 7c is sealed and fixedly installed in the first fixing hole. Sensor 12c has a first measuring electrode 8c sealed and fixedly installed in the second fixing hole for measuring the mud level in the second slurry cup 2c and connected to the heating element 7c. The lower part of the first base 1c is provided with a first driving mechanism that can move the bottom of the first cup 6c up and down. The bottom of the first cup 6c has a vertically penetrating stirring hole in the center. The stirring driving mechanism 13c is fixedly installed on the lower part of the first base 1c corresponding to the stirring hole. The upper end of the stirring shaft 14c of the stirring driving mechanism 13c passes through the stirring hole and is located below the center pile 11c, corresponding to the upper part of the bottom of the first cup 6c. A number of stirring teeth 15 are evenly distributed around the circumference on the outer side of the upper part of the stirring shaft 14c. A second measuring cylinder 3c is fixedly installed on the right side of the first base 1c, which is located to the right of the second slurry cup 2c. A second measuring electrode 9c capable of measuring conductivity and a distillation tube connected to the upper end of the second slurry cup 2c are provided on the inner side of the upper end of the second measuring cylinder 3c. A second driving mechanism capable of moving the second measuring electrode 9c up and down is provided on the right side of the first base 1c. A drain hole is provided at the lower end of the second measuring cylinder 3c. A first waste liquid valve 10c capable of opening and closing the drain hole is provided at the lower part of the first base 1c.

[0075] According to the requirements, the stirring drive mechanism 13c is a known planetary geared motor, the first measuring electrode 8c is a known technology, such as the JH-YC series tuning fork level switch, the second measuring electrode 9c is a known technology, such as the DDG-403BA intelligent conductivity monitor, and the temperature and humidity sensor 12c is a known technology, such as the DB4201GS industrial-grade current-type temperature and humidity sensor. For ease of control and expansion, the first measuring electrode 8c and the temperature and humidity sensor 12c are electrically connected to the input terminal of a known microcontroller, and the output terminal of the microcontroller is connected to the heating element 7c. During use, slurry is injected into the second slurry cup 2c through the injection pipe 29. When the first measuring electrode 8c detects that the liquid level has reached the set value, the injection stops. Then, the heating element 7c is energized to raise the temperature. The stirring teeth 15, driven by the stirring drive mechanism 13c, slowly stir the slurry, ensuring uniform heating and evaporation of water and oil. The evaporated water vapor or oil vapor enters the distillation tube connected to the second slurry cup 2c. The condensed water or oil drips into the second measuring cylinder 3c. Finally, the second measuring electrode 9c is moved up and down by the second drive mechanism. The liquid level at which the conductivity of the liquid in the second measuring cylinder 3c changes significantly is the interface between the oil and water levels. The second measuring electrode is then recorded. The position of electrode 9c determines the volume of water or oil. By setting heating element 7c and temperature and humidity sensor 12c, the mud in the second slurry cup 2c can be heated according to the set value. It has a high degree of automation and is easy to control. It is used in the field of automation and information technology transformation for measuring the percentage volume of oil, water, and solid phases of drilling fluids. After setting, it can automatically repeat the functional test without manual intervention. The invention has a reasonable and compact structure, is easy to use, and has the characteristics of flexibility, small size and strong scalability. It can realize fully automatic repeated testing of oil, water and solid phases of drilling fluids, which greatly saves personnel costs and reduces the labor intensity of personnel. It has strong promotion and application value.

[0076] As attached Figure 13 , 14As shown, the water loss performance measurement module includes a second base 1d, a mud cake generation component, a filter paper conveying component, a mud cake testing component, and a cleaning component. The second base 1d is equipped with, from right to left, a mud cake generation component for generating mud cake from drilling fluid and a mud cake testing component for testing the thickness and viscosity coefficient of the mud cake. The second base 1d also includes a filter paper conveying component for conveying the mud cake generated by the mud cake generation component to the mud cake testing component. A cleaning component is located above the filter paper conveying component. The mud cake generation component includes a third slurry cup 2d, a second cup cover 3d, a second cup bottom 4d, a locking screw 6d, a locking gear 9d, a locking motor 10d, and a gear ring 11d. A third slurry cup with a centrally located, vertically penetrating grouting hole is fixedly installed on the upper right side of the second base 1d. The second cup lid 3d has a hollow third cup 2d below it. At least three connecting lugs 7d are distributed circumferentially along the outer side of the upper end of the third cup 2d. Each connecting lug 7d has a locking threaded through hole at its upper end, and a locking screw 6d is screwed into each locking threaded through hole. A fixing plate is fixedly installed on the outer side of the second cup lid 3d corresponding to each connecting lug 7d. The upper end of each locking screw 6d is rotatably installed with the corresponding fixing plate. A locking gear 9d is fixedly installed on the outer side of the upper part of the locking screw 6d corresponding to the lower side of each fixing plate. Several fixing lugs 8d are evenly distributed circumferentially along the outer side of the middle part of the third cup 2d. A fixing ring 5d is fixed on the outer side of the lower part of the third cup 2d. The fixing ring 5d has a fixing ring 8d on its lower side. The fixed ear 8d has a corresponding connecting through hole. Each fixed ear 8d has a guide hole running vertically through it. A sliding shaft 12d, whose lower end passes through the corresponding connecting through hole and is fixed to a limit block 13d, is fitted into each guide hole. A guide gear 14d is fixedly installed on the outer upper part of the sliding shaft 12d at the upper position of each fixed ear 8d. A compression spring 17d is installed between the outer lower part of the sliding shaft 12d at the lower position of each fixed ear 8d and the corresponding position on the upper side of the fixed ring 5d. A locking motor 10d is fixedly installed in the middle of the second base 1d at the leftmost sliding shaft 12d position. A locking drive gear 15d is fixedly installed on the outer upper end of the output shaft of the locking motor 10d. The locking drive gear 15d and the leftmost guide gear... The upper part of 14d is connected by a first synchronous belt 16d. The lower outer side of the third pulp cup 2d is fitted with a gear ring 11d that meshes with all the locking gears 9d and all the guide gears 14d. The lower side of the third pulp cup 2d is provided with a corresponding second cup bottom 4d. The right side of the filter paper conveying assembly is located between the upper side of the second cup bottom 4d and the lower side of the third pulp cup 2d. The lower part of the second base 1d is provided with a lifting drive mechanism that can drive the second cup bottom 4d to move up and down. The center of the second cup bottom 4d is provided with a filter hole that runs vertically through it. A filter tube 18d is sealed and fixedly installed in the filter hole. A drain valve 20d is provided on the filter tube 18d. The lower inner side of the second base 1d, corresponding to the position of the lower side of the filter tube 18d, is fixedly installed with a third measuring cylinder 19d. The lower end of the third measuring cylinder 19d has a drain hole.The lower part of the second base 1d is equipped with a second waste liquid valve 21d that can open and close the drain hole.

[0077] According to requirements, a ring plate is fixedly installed on the lower outer side of the sliding shaft 12d. A compression spring 17d is fitted onto the outer side of the sliding shaft 12d between the lower side of the ring plate and the fixed ring 5d. The drain valve 20d and the second waste valve 21d are both existing known technologies. During use, by setting up a mud cake generation component, drilling fluid can be made into mud cakes as required. The mud cakes are transported to the mud cake testing component via a filter paper conveying component. The mud cake testing component can perform thickness and viscosity coefficient tests on the mud cakes. After the tests are completed, the mud cake testing component transfers and removes the mud cakes. After the tests are completed, the cleaning component cleans and dries the mud cake generation component and the mud cake testing component to facilitate the next testing operation. This invention has a reasonable and compact structure, is easy to use, and has the characteristics of flexibility, small size, and strong scalability. It can realize the measurement of drilling fluid mud cake thickness, viscosity coefficient, and other properties. The retest significantly saves on personnel costs and reduces labor intensity, making it highly valuable for widespread application. When the locking motor 10d is working, its output shaft rotates, driving the guide gear 14d to rotate via the first synchronous belt 16d. This, in turn, causes the gear ring 11d, which meshes with the guide gear 14d, to rotate. The gear ring 11d then drives the locking gear 9d to rotate. When the locking gear 9d rotates, the locking screw 6d rotates, causing the connecting ear 7d and the third slurry cup 2d to move up and down, thus achieving a seal between the second cup cover 3d and the upper end of the third slurry cup 2d, facilitating the drilling process. After the drilling fluid is injected into the third slurry cup 2d, further processing is performed. By setting up a sliding shaft 12d, a compression spring 17d, and a fixing lug 8d, the gear ring 11d can move up and down with the third slurry cup 2d during rotation. This ensures that the gear ring 11d is always engaged with the locking gear 9d and also provides support for the gear ring 11d. By setting up a filter pipe 18d and a drain valve 20d, the filtrate can be collected during pressurized filtration of the drilling fluid in the third slurry cup 2d. By setting up a second waste liquid valve 21d, the filtrate collected in the third measuring cylinder 19d can be processed, facilitating subsequent cleaning and filter paper processing. The right side of the conveying component is located between the upper side of the second cup bottom 4d and the lower side of the third slurry cup 2d. The second cup bottom 4d is raised by the lifting drive mechanism and sealed with the third slurry cup 2d. After the drilling fluid is pressurized and filtered in the third slurry cup 2d, the mud cake after the drilling fluid is filtered can be pressed onto the filter paper conveying component. After the mud cake is made, the second cup bottom 4d is lowered and reset by the lifting drive mechanism. Then the mud cake is transported by the filter paper conveying component to the mud cake testing component to measure the thickness and viscosity coefficient of the mud cake. It has a high degree of integration, simplifies the testing steps of drilling fluid water loss, mud cake thickness and viscosity coefficient, and reduces the labor intensity of the workers.

[0078] As attached Figure 1 , 2As shown, the left side of the test dock 1e is provided with a through observation hole, and the observation hole is provided with a first observation baffle, a second observation baffle, a third observation baffle and a fourth observation baffle, which are respectively corresponding to the sand content measurement function module, the rheological property measurement function module, the oil-water solid phase measurement function module and the water loss performance measurement function module.

[0079] According to requirements, the upper sides of the first, second, third, and fourth observation baffles are hinged to the corresponding positions of the test dock 1e. During use, this setup allows for simultaneous testing of multiple drilling fluid properties. It also facilitates the observation, disassembly, and maintenance of the sand content measurement module, rheological property measurement module, oil-water solid phase measurement module, and fluid loss performance measurement module. This effectively solves the problems of existing drilling fluid performance measurement equipment, such as the large variety of testing instruments, fragmented functions, difficulty in portability, and large errors in manual readings, which severely restrict the automation of the measurement industry, the informatization of drilling fluid technology, and the large-scale application of big data. This invention has a reasonable and compact structure, is easy to use, and features safety, labor-saving efficiency, high efficiency, good scalability, and strong expandability.

[0080] The above-mentioned modular drilling fluid conventional performance testing system can be further optimized and / or improved according to actual needs:

[0081] As attached Figures 3 to 4 As shown, the sand content measurement function module also includes a control unit. Valve 12a is an electric valve. Liquid level detection modules are respectively installed in the first slurry cup 1a and the first measuring cylinder 3a. The control unit is electrically connected to the control end of the cone plug sealing mechanism, the control end of the upper chamber opening and closing mechanism, the liquid level detection module, and the electric valve.

[0082] The control unit coordinates and controls the mud feeding, water feeding, measurement, and cleaning operations, automating sand content measurement and instrument cleaning. The liquid level detection module can use a liquid level electrode or a liquid level sensor.

[0083] As attached Figures 5 to 7 As shown, the funnel sealing mechanism includes a funnel cone plug 8b, a cone plug rod 9b, and a push rod drive mechanism that can drive the cone plug rod 9b to move left and right. The cone plug rod 9b is L-shaped, and a cone rod operation elongated hole 10b is provided at the top of the mud tank 3b outside the conical funnel 2b. The cone plug rod 9b extends into the mud tank 3b from the cone rod operation elongated hole 10b at an incline. The short section of the L-shaped cone plug rod 9b is fixedly connected to the bottom end of the funnel cone plug 8b. The funnel cone plug 8b is installed at the bottom outlet of the conical funnel 2b. The push rod drive mechanism includes a push rod drive motor, and the power output end of the push rod drive motor is fixedly connected to the long section of the L-shaped cone plug rod 9b.

[0084] The length of the conical rod operating orifice 10b is determined by whether the funnel conical plug 8b can open and close the bottom outlet of the conical funnel 2b. Specifically, the left end of the conical rod operating orifice 10b is the end point of the travel of the funnel conical plug 8b when closing the bottom outlet of the conical funnel 2b, and the right end of the conical rod operating orifice 10b is the end point of the travel of the funnel conical plug 8b when opening the bottom outlet of the conical funnel 2b. When the push rod drive motor pushes the long section of the L-shaped conical plug rod 9b to the left to the left end of the conical rod operating orifice 10b, the funnel conical plug 8b seals the bottom outlet of the conical funnel 2b; when the push rod drive motor pushes the long section of the L-shaped conical plug rod 9b to the right to the right end of the conical rod operating orifice 10b, the funnel conical plug 8b opens the bottom outlet of the conical funnel 2b.

[0085] As attached Figures 8 to 11 As shown, a first liquid receiving box 17c is fitted on the outside of the stirring drive mechanism 13c. The first liquid receiving box 17c has an annular first liquid receiving groove with an upward opening. The upper end of the first liquid receiving box 17c is sealed and fixedly connected to the lower end of the first cup bottom 6c. Several first drain pipes 20c are fixedly connected to the bottom of the first liquid receiving groove at intervals. The first drive mechanism includes a first drive motor 32c, a first lead screw 33c, a first lead screw nut 34c, and a second support frame 35c. The first drive motor 32c is fixedly installed on the first base 1c at the position between the first liquid receiving box 17c and the stirring drive mechanism 13c. The upper end of the output shaft of the first drive motor 32c is connected to the lower end of the first lead screw 33c located below the first cup bottom 6c. An L-shaped second support frame 35c is fixedly installed on the lower end of the first cup bottom 6c. A first lead screw nut 34c screwed to the outer side of the upper end of the first lead screw 33c is fixedly installed on the second support frame 35c.

[0086] According to the requirements, the first drive motor 32c is a known stepper motor. During use, by setting the first liquid receiving box 17c and the first drain pipe 20c, the fluid in the second slurry cup 2c can flow smoothly into the first liquid receiving tank during the up-and-down movement of the first cup bottom 6c, preventing the fluid from flowing into the stirring drive mechanism 13c or the first drive motor 32c and causing malfunction. By setting the first drive mechanism, the second slurry cup 2c can be opened, which is convenient for cleaning the second slurry cup 2c. The setting of the second support frame 35c allows for displacement space at the upper end of the first lead screw 33c, so that the first cup bottom 6c and the second support frame 35c can move up and down when rotated.

[0087] As attached Figure 8 , 9As shown in Figure 11, the second drive mechanism includes a second drive motor 37, a second lead screw 38c, a second lead screw nut 39c, and a guide rod 23c. The second drive motor 37 is fixedly installed on the right side of the first base 1c. The upper end of the second drive motor 37 is connected to the lower end of the second lead screw 38c, which is rotatably mounted on the first base 1c. A vertically arranged guide rod 23c is fixedly installed on the first base 1c corresponding to the left position of the second lead screw 38c. A sliding sleeve 24c is coaxially fitted on the outside of the guide rod 23c. A second lead screw nut 39c, which is screwed to the outside of the second lead screw 38c, is fixedly installed on the right side of the sliding sleeve 24c. The left side of the sliding sleeve 24c is fixedly connected to the upper end of the second measuring electrode 9c.

[0088] Based on the requirements, the second drive mechanism is a known stepper motor with an encoder. During use, the second measuring electrode 9c is driven by the second drive motor 37 to rise and fall. When the conductivity of the liquid in the second measuring cylinder 3c changes significantly, the liquid level is the interface between the oil and water levels. The encoder of the second drive motor 37 records the position, thereby obtaining the volume of water or oil. The measurement is convenient and the operation is simple.

[0089] As attached Figure 13 , 14As shown, the filter paper conveying assembly includes a conveying motor 22d, a drive shaft 23d, a second synchronous belt 31d, a third synchronous belt 32d, and a filter screen belt 33d. A forward-backward drive shaft 23d is rotatably mounted on the lower part of the second base 1d, corresponding to the lower right position of the second cup bottom 4d. A first driven shaft 25d is rotatably mounted on the left side of the second base 1d, corresponding to the left of the drive shaft 23d. A second driven shaft 26d is rotatably mounted on the middle part of the second base 1d, corresponding to the upper left of the first driven shaft 25d. A third driven shaft 27d is rotatably mounted on the left side of the second base 1d, corresponding to the position above the second driven shaft 26d. A second base 33d is positioned between the third driven shaft 27d and the third cup 2d. The upper part of base 1d is rotatably mounted with a fourth driven shaft 28d and a fifth driven shaft 29d. Corresponding to the right side of the second base 1d at the position of the second cup bottom 4d, a sixth driven shaft 30d is rotatably mounted on the right side. A transmission motor 22d is fixedly mounted on the inner side of the lower part of the second base 1d at the position above the left of the drive shaft 23d. The front end of the output shaft of the transmission motor 22d is connected to the rear part of the drive shaft 23d via a pulley drive. A front drive gear 24d and a rear drive gear are fixedly mounted on the outer front and rear sides of the drive shaft 23d, respectively. The outer front sides of the first driven shaft 25d, the second driven shaft 26d, the third driven shaft 27d, the fourth driven shaft 28d, and the fifth driven shaft 29d are also fixedly mounted on the drive shaft 29d. The first front driven gear, the second front driven gear, the third front driven gear, the fourth front driven gear, the fifth front driven gear, and the sixth front driven gear are fixedly installed on the outer front part of the fifth driven shaft 29d and the outer front part of the sixth driven shaft 30d, respectively. The first rear driven gear, the second rear driven gear, the third rear driven gear, the fourth rear driven gear, the fifth rear driven gear, and the sixth rear driven gear are fixedly installed on the outer rear part of the first driven shaft 25d, the outer rear part of the second driven shaft 26d, the outer rear part of the third driven shaft 27d, the outer rear part of the fourth driven shaft 28d, the outer rear part of the fifth driven shaft 29d, and the outer rear part of the sixth driven shaft 30d, respectively. The front driving gear 24d and the first front driven gear are also fixedly installed. The second, third, fourth, fifth, and sixth front driven gears are connected together by a second synchronous belt 31d. The rear driving gear, the first, second, third, fourth, fifth, and sixth rear driven gears are connected together by a third synchronous belt 32d, which has the same structure as the second synchronous belt 31d and is symmetrically distributed. A filter screen belt 33d is fixedly installed on the upper right side of the second synchronous belt 31d, located between the third slurry cup 2d and the bottom of the second cup 4d. The rear part of the filter screen belt 33d is fixedly installed at a position corresponding to the outer ring surface of the third synchronous belt 32d.

[0090] According to requirements, the filter belt 33d is a ring-shaped mesh. During use, the conveyor motor 22d drives the drive shaft 23d, which in turn drives the second synchronous belt 31d, the third synchronous belt 32d, and the filter belt 33d to rotate. This allows the mud cake made in the third slurry cup 2d to be transported to the mud cake testing assembly. It also provides a testing platform for the mud cake when the mud cake testing assembly tests the thickness and viscosity coefficient of the mud cake. By setting the second driven shaft 26d, the third driven shaft 27d, the fourth driven shaft 28d, and the fifth driven shaft 29d, the extension and retraction of the second synchronous belt 31d, the third synchronous belt 32d, and the filter belt 33d can be increased, facilitating synchronous lifting and lowering with the bottom of the second cup 4d. When making the mud cake, filter paper is placed on the filter belt 33d above the bottom of the second cup 4d to facilitate filtration of the filtrate when pressing the mud cake.

[0091] As attached Figure 4 As shown, the cone plug sealing mechanism includes a cone plug 13a and a vertical moving mechanism that drives the cone plug 13a to move up and down. The outer wall of the cone plug 13a is a conical surface that is smaller at the top and larger at the bottom. The cone plug 13a is located at the bottom drain port of the first slurry cup 1a. The vertical moving mechanism includes a lead screw stepper motor 14a, a guide rail 15a, and a sliding sleeve 16a that can slide up and down on the guide rail 15a. The lead screw stepper motor 14a is fixed on the fixing frame 4a to the left of the sand separating main tube 2a. The guide rail 15a is fixed on the fixing frame 4a to the right of the lead screw stepper motor 14a. A nut 17a is installed on the outside of the lead screw of the lead screw stepper motor 14a. The left side of the nut 17a is fixedly connected to the right end of the cone plug 13a through a connecting part 18a. The right side of the nut 17a is fixedly connected to the sliding sleeve 16a.

[0092] Start the lead screw stepper motor 14a. The nut 17a moves up and down on the lead screw of the lead screw stepper motor 14a, which drives the sliding sleeve 16a to move up and down on the guide rail 15a. At the same time, it drives the cone plug 13a to move up and down. The cone plug 13a moves upward to the bottom drain port of the first slurry cup 1a and closes the bottom drain port of the first slurry cup 1a. The cone plug 13a moves downward and opens the bottom drain port of the first slurry cup 1a.

[0093] As attached Figure 5 , 7 As shown, the vertical movement drive mechanism includes a through-type lead screw stepper motor 11b, a pair of first slide rails 12b, and a first support frame 13b. The left end of the first support frame 13b is fixedly connected to the lower rotating cylinder 6b. The pair of first slide rails 12b are respectively fixed on the front and rear sides of the bearing bracket 1b. The ball nut 25b of the through-type lead screw stepper motor 11b is fixedly connected to the first support frame 13b. The upper end of the ball screw 26b of the through-type lead screw stepper motor 11b is fixedly connected to the bearing bracket 1b. The front and rear sides of the first support frame 13b are respectively provided with sliders 14b corresponding to the first slide rails 12b.

[0094] The through-type lead screw stepper motor 11b is started. The ball nut 25b of the through-type lead screw stepper motor 11b moves up and down on the ball screw 26b, which drives the slider 14b to slide up and down on the first slide rail 12b through the first support frame 13b. The entire first support frame 13b moves up and down, thereby causing the lower rotating cylinder 6b to move up and down. For example, controlling the through-type lead screw stepper motor 11b to rotate forward, the lower rotating cylinder 6b moves upward, and vice versa. This achieves the purpose of driving the lower rotating cylinder 6b to move vertically. The through-type lead screw stepper motor 11b is a known and commonly used linear motion motor. As needed, limit blocks or limit switches are respectively set on the upper and lower sides of the first slide rail 12b. The limit blocks or limit switches are used to limit the endpoint of the slider 14b's upward and downward sliding.

[0095] As attached Figure 5 , 7 As shown, the rotation drive mechanism includes a stepper motor 15b and a transmission mechanism. The stepper motor 15b is fixed on the first support frame 13b. The power output end of the stepper motor 15b is connected to the power input end of the transmission mechanism. The transmission mechanism includes a driving pulley, a driven pulley 16b, and a transmission belt 17b. The driving pulley is installed on the power output end of the stepper motor 15b, and the driven pulley 16b is fixed on the outside of the lower rotating drum 6b. The driving pulley and the driven pulley 16b are connected by the transmission belt 17b.

[0096] Start the stepper motor 15b to drive the transmission mechanism, which in turn drives the lower drum 6b to rotate. The driving pulley drives the driven pulley 16b to rotate via the transmission belt 17b, thereby driving the lower drum 6b to rotate.

[0097] As attached Figure 5 As shown, at least one flushing pipe 19b is connected to the top of the conical funnel 2b, and the outlet of the flushing pipe 19b is tangent to the inner wall of the conical funnel 2b.

[0098] When it is necessary to clean the mud inside the conical funnel 2b, water is injected through the flushing pipe 19b to clean the conical funnel 2b. The tangential setting of the water outlet of the flushing pipe 19b can fully flush the inner wall of the conical funnel 2b.

[0099] As attached Figure 5 , 7 As shown, a brush is fixedly installed on the inner cylinder shaft 7b above the inner cylinder 5b by a bearing, and at least one outer cylinder flushing pipe 20b is distributed along the circumference on the upper outer side of the brush to flush the inner wall of the outer cylinder.

[0100] When the lower rotating drum 6b is moved upward to the brush position, the lower rotating drum 6b is rotated to clean the inner wall of the lower rotating drum 6b using the brush. Water can also be injected into the outer drum flushing pipe 20b to assist the brush in cleaning the lower rotating drum 6b. The brush can be a bristle brush 21b.

[0101] As attached Figure 5 As shown, the rheological testing module includes strain gauges, and the deformable part is made of spring steel sheet 18b.

[0102] The gap between the lower rotating cylinder 6b and the inner cylinder 5b is filled with the mud to be tested. When the lower rotating cylinder 6b rotates, it will drive the mud to rotate. Due to its own viscosity, the mud will cause the inner cylinder 5b to rotate and shift, which will cause the spring steel sheet 18b to bend and deform. The resistance of the strain gauge attached to the spring steel sheet 18b will change. The rheological value of the mud is calculated by the change in the resistance of the strain gauge.

[0103] As needed, an electric mixer 22b and a mud tank level electrode are installed on the mud tank 3b; a drain outlet is installed at the bottom of the mud tank 3b.

[0104] When cleaning the mud tank 3b, start the electric mixer 22b. The stirred water will clean the inner cylinder 5b remaining in the mud tank 3b, and the cleaning liquid will be discharged through the drain port.

[0105] As attached Figures 8 to 12 As shown, the inner wall of the lower end of the second cup 2c is a conical surface that is smaller at the top and larger at the bottom. The outer side of the bottom 6c of the first cup matches the inner wall of the lower end of the second cup 2c. The outer diameter of the first liquid receiving groove is not less than the inner diameter of the lower end of the second cup 2c. A U-shaped second liquid receiving box 18c with an opening to the left is fixedly installed on the lower part of the first base 1c below the first liquid receiving box 17c. The second liquid receiving box 18c has a U-shaped second liquid receiving groove with an opening facing upward. The lower end of each first drain pipe 20c is located in the second liquid receiving groove. The bottom of the second liquid receiving groove is fixedly connected to several... The second drain pipe 21c and the second liquid receiving box 18c are fixedly installed with a fixed base 16c whose upper end is fixedly installed together with the lower side of the stirring drive mechanism 13c. The first base 1c, which is located to the left of the fixed base 16c, is fixedly installed with a mounting base 36c. The upper side of the mounting base 36c is fixedly installed together with the lower side of the first drive motor 32c. The third liquid receiving box 19c is fixedly installed on the inner side of the lower part of the first base 1c, which is located below the first waste liquid valve 10c. The lower right side of the third liquid receiving box 19c is fixedly connected to the third drain pipe 22c.

[0106] As required, the fixed base 16c and the second liquid receiving box 18c are fixedly installed together near the inner ring surface of the stirring drive mechanism 13c. During use, the lower inner wall of the second impeller 2c is a conical surface that is smaller at the top and larger at the bottom. After the first cup bottom 6c moves downward, the fluid in the second impeller 2c can flow into the second liquid receiving tank along the channel between the second impeller 2c and the first cup bottom 6c, which can play a guiding role and prevent the fluid from flowing into other positions. The second liquid receiving box 18c is U-shaped with its opening to the left, which facilitates the installation of the stirring drive mechanism 13c. By setting the second drain pipe 21c, the liquid in the second drain tank can be collected and flow into the third liquid receiving box 19c to prevent the fluid from splashing. By setting the third drain pipe 22c, the liquid in the third liquid receiving box 19c can be collected centrally to reduce the pollution of the external environment.

[0107] As attached Figures 13 to 17As shown, the mud cake testing assembly includes a test base 34d, a first test frame 35d, a second test frame 36d, a first test motor 37d, a second test motor 38d, an electric push rod 39d, a test plate 40d, a sticky block 45d, and a control unit. The test base 34d, located above the filter belt 33d, is fixedly mounted on the upper left side of the second base 1d. The first test frame 35d is slidably mounted on the upper edge of the test base 34d. The upper part of the first test frame 35d has a through-hole test screw hole, into which a test screw 42d is screwed. The first test motor 37d is fixedly mounted on the right side of the test base 34d. The upper end of the output shaft of the first test motor 37d is connected to... The lower end of the test screw 42d is connected to the drive. The second test frame 36d is fixedly installed on the rear left side of the first test frame 35d. The second test motor 38d is fixedly installed on the second test frame 36d. A winding post 43d is rotatably installed on the upper part of the second test frame 36d, with its right end connected to the left end of the output shaft of the second test motor 38d. A take-up and release block 44d is fixedly installed on the lower part of the second test frame 36d corresponding to the position below the winding post 43d. The take-up and release block 44d has a downward-opening and horizontally penetrating storage groove on its lower side. The upper end of the take-up and release block 44d has two wire-passing holes spaced on the left and right, both of which extend to the bottom wall of the storage groove. Several first-end wound wires are passed through each wire-passing hole. The take-up and release ropes 46d are fixedly installed at the position corresponding to the winding post 43d. The second end of each take-up and release rope 46d is fixedly installed on the upper side of the adhesive block 45d that matches the upper part of the storage groove. Each thread hole is provided with an induction magnet 48d fitted on the outside of the take-up and release rope 46d. The thickness probe 47d with its lower end below the adhesive block 45d is fixedly installed on the lower side of the second test frame 36d corresponding to the right position of the take-up and release block 44d. The second base 1d corresponding to the position between the third driven shaft 27d and the fourth driven shaft 28d is provided with a test plate 40d whose upper side contacts the upper inner ring surface of the filter belt 33d. The front left and rear sides of the test plate 40d are connected. On the left side, there are hinged ears 41d that are rotatably mounted together with the third driven shaft 27d. The lower right side of the test plate 40d is hinged to the inner left side of the second base 1d, and an electric push rod 39d is connected between them. The lower left side of the test plate 40d is provided with a gyroscope 49d and a Hall sensor 50d corresponding to the induction magnet 48d. The thickness probe 47d, the gyroscope 49d and the Hall sensor 50d are all electrically connected to the control unit. The control unit is electrically connected to the first test motor 37d, the second test motor 38d, the transmission motor 22d, the locking motor 10d, the electric push rod 39d, the drain valve 20d and the second waste valve 21d.

[0108] Based on the requirements, the control unit is a known PLC, the thickness probe 47d is a known conductivity probe, and the second test motor 38d can be a known worm geared motor. During use, the prepared mud cake is transported to below the thickness probe 47d via the filter belt 33d. When the first test motor 37d operates, its output shaft rotates, causing the test screw 42d to rotate. The first test frame 35d descends, driving the second test frame 36d to descend. After the second test frame 36d descends, it drives the take-up block 44d to descend, finally reaching the thickness probe 47d. When the lower end of the thickness probe 47d contacts the upper side of the mud cake, the conductivity of the two poles at the lower end of the probe is analyzed. The conductivity changes drastically when air enters water, and then changes slightly when water enters drilling fluid. The position of the probe at the point of slight change is recorded. The difference between the probe's lowest point and the lowest point is the thickness of the mud cake. The mud cake thickness is then calculated. Then, the second test motor 38d drives the winding column 43d to rotate, releasing the viscous block 45d. After the viscous block 45d falls onto the mud cake, the piston rod of the electric push rod 39d extends, making the right end of the test plate 40d higher than the left end. The gyroscope 49d records the deflection angle of the test plate 40d. At the same time, the Hall sensor 50d calculates the magnetic field of the sensing magnet 48d. When the magnetic field changes, it indicates that the viscous block 45d has moved along the surface of the mud cake. At this time, the value of the gyroscope 49d is recorded, which is the angle generated by the test plate 40d, and the viscosity coefficient of the mud cake is calculated. The thickness and viscosity coefficient of the mud cake can be obtained quickly. The test is fast and convenient, with a high degree of automation. The viscous block 45d can also be replaced according to needs, making it more expandable.

[0109] As attached Figures 13 to 17As shown, the cleaning assembly includes a rotary joint 51d, a central cylinder 52d, a second cleaning motor 53d, a cleaning box 54d, and a second cleaning tube 55d. The rotary joint 51d is located above the second cup lid 3d. A central cylinder 52d with a sealed lower end is rotatably mounted on the lower end of the rotary joint 51d. The lower end of the central cylinder 52d passes through the grouting hole and is located on the lower inner side of the third grout cup 2d. Radial through cleaning holes are discretely distributed on the lower outer side of the central cylinder 52d. A second cleaning motor 53d, electrically connected to the control unit, is fixedly mounted on the second base 1d, corresponding to the right position of the second cup lid 3d. The upper end of the output shaft of the second cleaning motor 53d... The upper part of the center cylinder 52d is connected to the center cylinder 52d via a pulley drive. A first rotating shaft 56d is rotatably mounted on the lower left side of the first test frame 35d. The outer left side of the first rotating shaft 56d is fixedly mounted to the upper right side of the cleaning box 54d, which is sleeved on the outer side of the lower part of the take-up block 44d. A second cleaning tube 55d is fixedly connected to the upper part of the cleaning box 54d. A first crank arm 64d, which is inclined to the left and lower to the right, is fixedly mounted on the outer lower part of the first rotating shaft 56d. A second rotating shaft 57d, parallel to the first rotating shaft 56d, is fixedly mounted on the right side of the first crank arm 64d. A left rotating shaft is rotatably mounted on the left rear side of the test seat 34d, which is located above the second rotating shaft 57d. A right-facing third rotating shaft 58d has a first gear 60d fixedly mounted on its outer left side. A fourth rotating shaft 59d, parallel to the third rotating shaft 58d, is rotatably mounted on the upper part of the test seat 34d above the third rotating shaft 58d. A second gear 61d, meshing with the first gear 60d, is fixedly mounted on its outer left side. A fixing sleeve 62d is fixedly mounted on the left side of the second gear 61d. At least one actuating tooth 63d is evenly distributed along the circumference of the outer side of the fixing sleeve 62d. A reverse Z-shaped second crank arm 65d is mounted on the outer left side of the third rotating shaft 58d, corresponding to the position to the left of the second gear 61d. The other end of d is fitted with a first connecting arm 66d. The lower end of the first connecting arm 66d is hinged to a second connecting arm 67d, the lower end of which is fitted on the outer side of the rear of the second rotating shaft 57d. The upper part of the first test frame 35d is fixedly installed with a pawl 68d that can make the second gear 61d rotate in one direction. The lower rear side of the second test frame 36d, corresponding to the position below the pawl 68d, is provided with a rearward-opening limiting groove. A push rod 69d is rotatably installed in the limiting groove. Its rear end can move up and down with the second test frame 36d, causing one of the actuating teeth 63d to swing and thus causing the second gear 61d to rotate. The upper front end of the push rod 69d contacts the bottom wall of the front part of the limiting groove.

[0110] According to requirements, four actuating teeth 63d are evenly distributed around the outer circumference of the fixed sleeve 62d. During use, after testing, water can be injected into the third paddle cup 2d through the central cylinder 52d. By setting a second cleaning motor 53d, the central cylinder 52d can be driven to rotate, allowing clean water to be evenly sprayed onto the inner wall of the third paddle cup 2d, the second cup lid 3d, and the second cup bottom 4d through the cleaning holes, thoroughly cleaning them. Dry air can also be injected into the central cylinder 52d to dry the inner wall of the third paddle cup 2d, the second cup lid 3d, and the second cup bottom 4d, improving cleaning efficiency and facilitating the next test. By setting a cleaning box 54d and a second cleaning tube 55d, the thickness probe 47d, the take-up / release block 44d, and the sticky block 45d can be cleaned after testing. The next test of the mud cake parameters can also protect the thickness probe 47d and the sticky block 45d. By setting the pawl 68d, the push rod 69d rises with the second test frame 36d and lifts the lower front actuating tooth 63d to swing, causing the second gear 61d and the first gear 60d to rotate. Finally, the upper left side of the cleaning box 54d swings downward, which facilitates the testing of the mud cake after the thickness probe 47d and the sticky block 45d descend. The upper front side of the push rod 69d contacts the bottom wall of the front of the limiting groove, and the setting of the pawl 68d can prevent the push rod 69d from driving the actuating tooth 63d to rotate the second gear 61d in the opposite direction during the descent of the thickness probe 47d, thus improving the reliability of the operation.

[0111] As attached Figure 13 , 14 As shown, the inner wall of the lower end of the third cup 2d is a conical surface that is smaller at the top and larger at the bottom. The outer side of the second cup bottom 4d matches the inner side of the lower end of the third cup 2d. An annular collection box 70d is fixedly installed on the lower side of the second cup bottom 4d. The collection box 70d has an annular groove with an upward opening. The outer diameter of the annular groove is larger than the outer diameter of the second cup bottom 4d. Several drain pipes 71d are fixedly connected to the bottom of the collection box 70d at intervals. The lifting drive mechanism includes a lifting screw 73d, a mounting bracket 74d, a support plate 75d, a second slide rail 76d, a guide rail 77d, and a lifting motor 72d electrically connected to the control unit. A filter tube 18d is fixedly installed on the lower side of the second cup bottom 4d at the position corresponding to the outer side of the second cup bottom 4d. An L-shaped support plate 75d has a threaded through hole at its lower part. A mounting bracket 74d is fixedly installed in the second base 1d below the support plate 75d. A lifting motor 72d is fixedly installed on the mounting bracket 74d. The upper end of the output shaft of the lifting motor 72d is connected to the lower end of the lifting screw 73d, which is screwed into the threaded through hole. Several second slide rails 76d are evenly distributed around the outer side of the liquid collection box 70d along the circumference. Each second slide rail 76d has a guide groove that runs vertically through and opens outwards at its upper end. A guide rail 77d that matches the guide groove is fixedly installed in the second base 1d at the position of each second slide rail 76d.

[0112] As required, two second slide rails 76d are radially symmetrically distributed on the outer side of the collection box 70d. During use, by setting up a support plate 75d and a lifting motor 72d, the support area of ​​the second cup bottom 4d can be increased, enhancing the stability of the second cup bottom 4d during its lifting process. This improves the sealing strength after the second cup bottom 4d rises and seals with the lower end of the third slurry cup 2d. The second slide rails 76d and guide rails 77d enhance the accuracy of the second cup bottom 4d's rising and falling processes, facilitating the sealing between the second cup bottom 4d and the third slurry cup 2d. Simultaneously, they ensure the integrity of the mud cake during the second cup bottom 4d's descent, improving subsequent mud cake measurement. To improve the accuracy of the operation, the collection box 70d is set up so that after the mud cake is made, the bottom of the second cup 4d descends, which can collect the excess drilling fluid in the third slurry cup 2d. The outer diameter of the annular groove is larger than the outer diameter of the bottom of the second cup 4d, which can prevent the drilling fluid outside the second cup cover 3d from splashing out. During use, a connecting hose can be fixed at the lower end of each drain pipe 71d to collect the waste liquid in a concentrated manner, thus optimizing the working environment of the invention. The collection box 70d has an annular groove with an upward opening. This setting can protect the lifting motor 72d and prevent liquid from flowing into the third measuring cylinder 19d and affecting the test data.

[0113] As attached Figure 4 As shown, the upper chamber opening and closing mechanism includes a digital servo motor 19a and a gate 20a. The digital servo motor 19a is fixedly installed on the upper left part of the sand-dividing main pipe 2a, and the gate 20a is installed on the left end of the upper chamber 6a through a rotating shaft. The power output end of the digital servo motor 19a is connected to the rotating shaft.

[0114] Start the digital servo motor 19a, and control the left side of the upper chamber 6a of the sand-distributing main pipe 2a by controlling the rotation direction of the power output end of the digital servo motor 19a.

[0115] As required, the gate 20a adopts a mesh gate with a mesh size of 200 mesh.

[0116] As attached Figures 3 to 4 As shown, the control unit uses a first microcontroller, which is electrically connected to the control terminal of the lead screw stepper motor 14a, the control terminal of the digital servo motor 19a, the liquid level detection module, and the electric valve.

[0117] As attached Figures 3 to 4 As shown, the left outlet of the main sand separating tube 2a is connected to the upper inlet of the first measuring cylinder 3a through a buffer tube 21a. The left outlet of the main sand separating tube 2a is tapered, wider at the top and narrower at the bottom, and the buffer tube 21a is funnel-shaped.

[0118] As attached Figures 5 to 7As shown, the rheological testing module includes strain gauges, and the deformable parts are made of spring steel sheets; an electric mixer and a mud tank level electrode are installed on the mud tank, and a drain outlet is installed at the bottom of the mud tank. The high liquid level monitoring module is a high-level electrode for monitoring high liquid levels, and the low liquid level monitoring module is a low-level electrode for monitoring low liquid levels.

[0119] Depending on the requirements, the high liquid level monitoring module uses a high-level electrode 23b to monitor high liquid levels; the low liquid level monitoring module uses a low-level electrode 24b to monitor low liquid levels. Both the high-level electrode 23b and the low-level electrode 24b can be liquid level electrodes.

[0120] As attached Figure 8 , 9 As shown in Figures 11 and 12, the distillation tube includes a connecting section 25c, a condensing section 26c, and a confluence section 27c. The left end of the connecting section 25c is fixedly connected to the upper outer side of the second slurry cup 2c. The right end of the connecting section 25c is fixedly connected to the left end of the condensing section 26c, which is inclined from left to right. The right end of the condensing section 26c is fixedly connected to the upper end of the confluence section 27c, which is vertically set and whose lower end is located on the upper inner side of the second measuring cylinder 3c.

[0121] During use, with this setup, the heated mud in the second slurry cup 2c flows into the second measuring cylinder 3c through the distillation tube, facilitating subsequent measurement and analysis.

[0122] As attached Figures 8 to 12 As shown, a first cleaning pipe 28c is fixedly connected to the connecting section 25c. A solenoid valve is provided on the first cleaning pipe 28c. Several heat sinks 30c are arranged sequentially from left to right along the axial direction on the outer side of the condensing section 26c. Each heat sink 30c is provided with a cooling fan 31c on the side away from the condensing section 26c. Each cooling fan 31c is connected to the temperature and humidity sensor 12c.

[0123] Based on the requirements, heat sink 30c is a commonly known electronic heat sink 30c, and the cooling fan 31c has the opposite airflow direction. During use, this configuration improves the condensation efficiency of the condenser section 26c.

[0124] As attached Figures 3 to 4 As shown, a waste liquid box 22a is provided below the discharge end of the first measuring cylinder 3a. A slurry cover 23a is fixed on the top of the first slurry cup 1a, and a slurry cup flushing pipe 5a is provided on the slurry cover 23a.

[0125] As attached Figures 5 to 7 As shown, the second microcontroller is electrically connected to the control terminals of the through-type lead screw stepper motor 11b, the stepper motor 15b, the electric mixer 22b, the push rod drive motor, the mud tank 3b level electrode, the high-level electrode 23b, and the low-level electrode 24b.

[0126] The mud tank level electrode 3b, high-level electrode 23b, and low-level electrode 24b transmit the monitored liquid level information to the second microcontroller. The control terminals of the through-type lead screw stepper motor 11b, stepper motor 15b, electric mixer 22b, and push rod drive motor are controlled by the second microcontroller to maintain their operating status. By controlling the entire measuring instrument's operation through the second microcontroller, automated measurement is achieved.

[0127] As attached Figures 8 to 11 As shown, a first cleaning motor 40c is fixedly installed on the upper part of the first base 1c corresponding to the left position of the second slurry cup 2c. The outer side of the upper end of the output shaft of the first cleaning motor 40c is connected to the outer side of the upper part of the center pile 11c through a pulley drive.

[0128] During use, when injecting clean water into the center pile 11c to clean the inner wall of the second slurry cup 2c, the first cleaning motor 40c can drive the center pile 11c to rotate, so that the clean water in the center pile 11c can clean the inner wall of the second slurry cup 2c without dead angles through the cleaning hole, thereby improving the cleaning quality of the second slurry cup 2c and facilitating the smooth conduct of the subsequent test.

[0129] As attached Figure 13 , 14 As shown, the cake generation assembly also includes a pressure relief valve and a level gauge. The upper end of the second cup cover 3d is provided with a pressure relief hole and a measuring hole that are spaced apart vertically. The lower end of the pressure relief valve is sealed and installed in the pressure relief hole, and the upper part of the level gauge is sealed and installed in the measuring hole. Both the pressure relief valve and the level gauge are electrically connected to the control unit.

[0130] Based on the requirements, both the pressure relief valve and the level gauge are existing, well-known technologies. During use, this setup allows for the release of high pressure within the third slurry cup (2d) after the mud cake is formed via the pressure relief valve. The level gauge enables control of the drilling fluid volume injected into the third slurry cup (2d), resulting in convenient, highly automated, and precise control.

[0131] As attached Figures 1 to 2 As shown, a host computer is fixedly installed on the upper left side of the test dock 1e above the observation hole. The host computer is connected to the control unit, the first microcontroller, and the second microcontroller.

[0132] Based on the requirements, the host computer utilizes existing, well-known technology. During use, this setup facilitates the testing of drilling fluid performance and is simple and convenient to operate.

[0133] Example 2: As shown in the attached document Figures 1 to 13 As shown, the test methods of the modular drilling fluid conventional performance testing system include sand content measurement method, funnel viscosity measurement method, rheological property measurement method, oil-water solid phase measurement method, medium pressure fluid loss measurement method, mud cake thickness measurement method, and mud cake viscosity coefficient measurement method.

[0134] The sand content measurement method is as follows: Step 1, take sand: inject the required amount of mud (100ml) into the first slurry cup 1a through the slurry cup flushing pipe 5a, and determine whether the liquid level has reached 100ml through the liquid level detection module (liquid level electrode); when the mud in the first slurry cup 1a reaches 100ml, start the lead screw stepper motor 14a, and the cone plug 13a moves downward under the drive of the lead screw stepper motor 14a, the bottom drain port of the first slurry cup 1a is opened, and the mud flows through the bottom drain port of the first slurry cup 1a. The slurry flows into the main sand-separating pipe 2a. To ensure the slurry passes smoothly through the filter screen 8a, the vibration motor 11a above the main sand-separating pipe 2a starts vibrating simultaneously. At the same time, clean water is injected through the upper flushing pipe 9a and the lower flushing pipe 10a, allowing the slurry to pass smoothly through the filter screen 8a. The filtered sand is collected on the filter screen 8a to the right of the gate 20a in the upper chamber 6a. The cleaning fluid formed from washing the slurry flows into the first measuring cylinder 3a. The electric valve at the lower end of the first measuring cylinder 3a opens, allowing the first measuring cylinder to... The cleaning fluid from 3a flows into the waste liquid box 22a and is eventually discharged through the drain outlet of the waste liquid box 22a. After about two minutes, the mud is washed away, and the cone plug 13a moves upward under the drive of the lead screw stepper motor 14a, closing the drain outlet at the bottom of the first slurry cup 1a, and proceeding to the next step; Step 2, sand removal and measurement: Close the electric valve at the lower end of the first measuring cylinder 3a, close the drain outlet at the lower end of the first measuring cylinder 3a, and the digital servo motor 19a controls the rotating shaft to rotate clockwise by a certain angle, causing the gate 20a to open to the left, and the gate 20a opens. After opening, the filtered sand falls into the first measuring cylinder 3a. 100 ml of clean water is injected into the first slurry cup 1a. The drain port at the bottom of the first slurry cup 1a is opened, and clean water is injected through the upper flushing pipe 9a and the lower flushing pipe 10a at the same time. The sand present on the right side of the gate plate 20a and the sand on the filter screen 8a are flushed into the first measuring cylinder 3a. The liquid level in the first measuring cylinder 3a is measured (by a liquid level sensor) and compared with the liquid level of the injected equal amount of clean water. The difference between the two volumes is the volume of the sand, and the sand content result is obtained.

[0135] The viscosity measurement method for the funnel is as follows: Slurry is injected into the conical funnel 2b through the grouting pipe 4b. The high-level electrode 23b and the low-level electrode 24b measure the slurry level inside the conical funnel 2b. The high-level electrode 23b determines whether the slurry has reached the upper limit set value (1500ml). When the conductivity of the high-level electrode 23b changes drastically, it is determined that the liquid level has reached the upper limit set value (1500ml). Then, the push rod drive motor drives the conical plug rod 9b to move to the right, causing the conical plug rod 9b to open the funnel conical plug 8b. After the funnel cone plug 8b is opened, the mud in the conical funnel 2b begins to flow out. The timing starts at the same time the mud in the conical funnel 2b begins to flow out. The mud flows into the mud tank 3b below the conical funnel 2b. During this period, the conductivity of the low electrode 24b is used to determine whether 946ml of mud has flowed out of the conical funnel 2b. When the conductivity of the low electrode 24b changes drastically, the liquid level has dropped to meet the condition of 946ml flowing out. At this time, the timing is stopped and the time taken is recorded. The funnel viscosity of the mud is calculated based on the recorded time.

[0136] The rheological measurement method is as follows: 1500ml of mud from the conical funnel 2b is poured into the mud tank 3b. The lower rotating cylinder 6b is lowered to the test position in the mud tank 3b by the through-type lead screw stepper motor 11b. The stepper motor 15b drives the lower rotating cylinder 6b to rotate at six different speeds (3rpm, 6rpm, 100rpm, 200rpm, 300rpm, 600rpm). There is a gap of about 1.8 mm between the lower rotating cylinder 6b and the inner cylinder 5b in the middle (the mud will fill the gap). When the lower rotating cylinder 6b rotates, it will drive the mud to rotate. The mud will cause the inner cylinder 5b to rotate and deflect due to its own viscosity, thereby causing the spring steel sheet 18b to bend and deform. The resistance of the strain gauge attached to the spring steel sheet 18b changes. The result of the resistance change is analyzed and output, and converted into a torque deflection value. The rheological value measurement is completed.

[0137] The oil-water solid phase measurement method is as follows: Step 1, distillation: Slurry is injected into the second slurry cup 2c through the injection pipe 29, with a set value of 25ml. The liquid level is measured by the first measuring electrode 8c on the second slurry cup 2c to determine whether 25ml has been reached. Once the liquid level of 25ml is reached, the injection of slurry is stopped. Then, the heating element 7c embedded on the bottom 6c of the first cup is energized to raise the temperature. The stirring teeth 15 are driven by the stirring drive mechanism 13c to slowly stir at a speed of 100rpm for 5 minutes. The slurry will be uniformly heated under stirring, and the water and oil will evaporate. The evaporated water vapor or oil vapor enters the distillation tube connected to the second slurry cup 2c. The cooling fan 31c mounted on the two heat sinks 30c surrounding the sides is powered on and starts to cool the heat sinks 30c. The start-up of the cooling fan 31c is simultaneous with that of the heating element 7c. The condensed water or oil drips into the second measuring cylinder 3c through the manifold 27c. The first waste liquid valve 10c at the lower end of the second measuring cylinder 3c is normally closed. The temperature and humidity sensor 12c controls the temperature of the mud within a safe range and tests the humidity in the second slurry cup 2c. When the humidity is lower than a certain value, the heating element 7c stops heating. When the temperature is lower than 100 degrees, the cooling fan 31c stops working. Step two, measurement: The liquid level test in the second measuring cylinder 3c is completed by the second measuring electrode 9c. The second measuring electrode 9c is driven by the second drive motor 37 to rise and fall. The liquid level when the conductivity changes significantly is the interface between the oil and water levels. This determines whether the oil or water level has been reached. The encoder of the second drive motor 37 records the position, thereby obtaining the volume of water or oil.

[0138] The medium-pressure fluid loss measurement method is as follows: First, control the drilling fluid pump to inject drilling fluid into the third slurry cup 2d, with an injection volume of approximately 240 ml. The injection level is determined by a level gauge. At this point, the third slurry cup 2d and the second cup cap 3d are in a sealed state, locked by four locking screws 6d. Driven by the locking motor 10d, the second cup cap 3d and the third slurry cup 2d are locked to ensure no air leakage under medium pressure. After the drilling fluid injection is completed, a high-pressure air pump injects air into the third slurry cup 2d through the central cylinder 52d at the center of the second cup cap 3d, raising the pressure to 0.69. The filter tube is set to 10 MPa. Then, the drain valve 20d is opened. When the first drop of filtrate drips through the lower end of the filter tube 18d, the timer is started and stopped after 7.5 minutes. The liquid level in the third measuring cylinder 19d is recorded. If there is too much filtrate, the second waste liquid valve 21d is controlled to open and close once every 0.5 seconds after the filtrate level in the third measuring cylinder 19d reaches a certain position. The filtrate continues to drip after the liquid level is read again, and the liquid level is recorded again. If the filtrate level in the third measuring cylinder 19d exceeds the specified position again, the above actions are repeated. Finally, all values ​​are recorded, and the total volume of the filtrate is calculated.

[0139] The mud cake thickness measurement method is as follows: After the medium-pressure water loss measurement is completed, the pressure relief valve is controlled and opened by the control unit to release the air pressure in the third slurry cup 2d. At the same time, the locking motor 10d drives the locking screw 6d to rotate in the opposite direction, opening the third slurry cup 2d and the second cup cover 3d. Simultaneously, the lifting motor 72d drives the lifting screw 73d to rotate, causing the bottom of the second cup 4d to drop another 20 mm. Excess drilling fluid will flow into the collection box 70d around the bottom of the second cup 4d. Then, the drain pipe 71d releases the drilling fluid. Under the third slurry cup 2d, the mud cake after the excess drilling fluid is released is on the filter paper of the filter belt 33d. Driven by the second synchronous belt 31d and the third synchronous belt 32d, the filter belt 33d moves to the left and stops when it is below the cleaning box 54d. The first test motor 37d drives the test screw 42d to slide the first test frame 35d upward. After the push rod 69d rises with the second test frame 36d, it moves the front and lower actuating teeth. 63d is lifted, causing the second gear 61d and the first gear 60d to rotate, ultimately swinging the upper left side of the cleaning box 54d downwards. Then, the first test motor 37d drives the test screw 42d to slide the first test frame 35d downwards. After the lower rear end of the push rod 69d contacts the upper side of the actuating tooth 63d, it rotates upwards and retracts. After the first test frame 35d continues to move downwards, the push rod 69d rotates past the actuating rod and resets under gravity. Then, the second test motor 38d drives the winding column 43d to rotate, causing the thickness probe 47d and the viscous block 45d to descend simultaneously. The conductivity of the two poles at the lower end of the thickness probe 47d is analyzed by applying current. The conductivity changes drastically when it changes from air to water, and then changes slightly when it changes slightly when it changes from water to drilling fluid. The difference between the position where the thickness probe 47d descends (on the upper surface of the mud cake) and the position where the thickness probe 47d reaches the lowest point (on the lower surface of the mud cake) is recorded. This difference is used to calculate the thickness of the mud cake.

[0140] The viscosity coefficient of the mud cake is measured as follows: After calculating the thickness of the mud cake, the second test motor 38d drives the winding column 43d to rotate, releasing the viscous block 45d. After the viscous block 45d falls onto the mud cake, the piston rod of the electric push rod 39d extends, making the right end of the test plate 40d higher than the left end. The gyroscope 49d records the deflection angle of the test plate 40d. At the same time, the Hall sensor 50d calculates the magnetic field of the sensing magnet 48d. When the magnetic field changes, it indicates that the viscous block 45d slides and displaces along the surface of the mud cake. At this time, the value of the gyroscope 49d is recorded, which is the angle generated by the test plate 40d, and the viscosity coefficient of the mud cake is calculated (slider measurement method).

[0141] As attached Figures 1 to 13As shown, the cleaning process also includes the following steps for the sand measurement module: Open the electric valve at the lower end of the first measuring cylinder 3a, and open the drain end at the lower end of the first measuring cylinder 3a. Sand and clean water flow together into the waste liquid box 22a. At this time, the drain port at the bottom of the first slurry cup 1a, the gate 20a, and the drain end at the lower end of the first measuring cylinder 3a are all in the normally open state. Inject clean water into the slurry cup flushing pipe 5a, the upper flushing pipe 9a, and the lower flushing pipe 10a to clean each working part for 1 minute. Water flows through the first slurry cup 1a, the main sand separating pipe 2a, the first measuring cylinder 3a, and finally into the waste liquid box 22a, and is discharged from the drain outlet of the waste liquid box 22a. After cleaning, hot air is injected into the slurry cup flushing pipe 5a, the upper flushing pipe 9a, and the lower flushing pipe 10a to dry each working part for 1 minute. The hot air flows through the first slurry cup 1a, the main sand separating pipe 2a, and the first measuring cylinder 3a, and some of the hot air flows into the waste liquid box 22a to dry the entire working part. After drying, the electric valve at the lower end of the first measuring cylinder 3a, the drain outlet at the bottom of the first slurry cup 1a, and the gate 20a are closed to prepare for the next test.

[0142] As can be seen from the test method, when this sand content measurement module is used to measure the sand content of mud, it assists in the sand content feeding, measurement and instrument cleaning operations through the cone plug sealing mechanism combined with the upper chamber opening and closing mechanism. The control unit controls the mud feeding, water feeding, measurement and cleaning operations in a coordinated manner, so as to automate the sand content measurement and instrument cleaning.

[0143] Water and hot air can also be injected through the control unit. Hot air can be air above 25°C.

[0144] The cleaning of the rheological measurement module shall be carried out in accordance with the following method:

[0145] After the drain port of mud tank 3b is opened and the tested mud is discharged, stepper motor 15b drives the lower drum 6b to continue rotating at a speed of 6 rpm. The through-type lead screw stepper motor 11b is started, driving the lower drum 6b to rise. The inner drum 5b and brush 21b are in a stationary state. At the same time, the four outer drum flushing pipes 20b above the brush 21b start spraying water. The lower drum 6b rises to the cleaning position. At this time, the lower drum 6b is directly in front of the bristles of the brush 21b. The brush 21b is rinsed with clean water, and the brush 21b cleans the inner wall of the lower drum 6b. The remaining slurry flows into mud tank 3b. At the same time, clean water is injected into the conical funnel 2b through the flushing pipe 19b. The clean water spirals down the inner wall of the conical funnel 2b. During cleaning, the funnel cone plug 8b is in the normally open state, and the flowing clean water flows directly into the mud tank 3b. When the clean water in the mud tank 3b reaches a certain level, the electric mixer 22b on the mud tank 3b starts high-speed mixing. The mixed clean water will clean the inner cylinder 5b remaining in the mud tank 3b. The electric mixer 22b can change direction twice per minute to mix the clean water to thoroughly clean the inner cylinder 5b. After one minute, the cleaning waste liquid is discharged from the drain port of the mud tank 3b. After emptying, the above action can be repeated three times. The cleaning work is completed. At this time, the funnel cone plug 8b and the drain port of the mud tank 3b are in the open state, and the through-type lead screw stepper motor 11b and the lower rotating drum 6b and other working parts are in the cleaning position. After drying, it is ready for the next test.

[0146] This rheological measurement module integrates a viscosity testing mechanism and a rheological testing mechanism into one unit, combining both viscosity and rheological testing functions. It features a compact structure and functions, is easy to carry, and can achieve fully automated repeated testing of conventional drilling fluid properties with consistent operation. This greatly saves personnel costs and reduces labor intensity. The entire measuring instrument's operation is controlled by a second microcontroller, thereby achieving automated measurement and possessing strong application value.

[0147] The cleaning of the oil-water solid phase measurement module is performed as follows: After the test, the second measuring electrode 9c rises to the middle position under the drive of the second drive motor 37, the first waste liquid valve 10c is open, the water-air pump input route is controlled by the three-way solenoid valve, switching to the water path, the water-air pump starts working, and clean water is pressurized by the water-air pump and injected into the center pile 11c through the rotary joint 4. At this time, the center pile 11c starts to rotate under the drive of the first cleaning motor 40c, with a maximum rotation speed of 100 rpm, and the clean water is injected from... The cleaning holes on the central pile 11c spray water onto the four walls of the second slurry cup 2c. After 10 seconds, the water pump stops injecting water, and the first cleaning motor 40c stops rotating. After 1 minute, the stirring shaft 14c starts rotating under the drive of the stirring drive mechanism 13c, driving the stirring teeth 15 to break up and dissolve the solidified mud residue. The initial speed is 60 rpm, which increases to 150 rpm after 30 seconds, and then to 300 rpm after another 30 seconds. It then runs intermittently every 10 seconds, repeating this process 5 times before stopping. After 10 seconds, the bottom 6c of the first cup moves down 10 mm under the drive of the first drive motor 32c. At the same time, the water pump and the first cleaning motor 40c start running again. Clean water, driven by the central pile 11c, rotates to clean the inner wall of the second slurry cup 2c. The cleaning liquid flows around the second slurry cup 2c, through the first liquid receiving tank, the first liquid receiving pipe, the second liquid receiving tank, and the second liquid receiving pipe, before flowing into the third liquid receiving box 19c. This process lasts for 1 minute. During this process, the solenoid valve on the first cleaning tube 28c is opened, allowing clean water to begin cleaning the distillation tube. The cleaning solution flows along the condenser section 26c and the manifold section 27c into the second measuring cylinder 3c to clean it. Afterward, the solenoid valve on the first cleaning tube 28c remains open. After cleaning the inner wall of the second cup 2c for one minute, the water pump and the first cleaning motor 40c continue operating. The bottom of the first cup 6c rises under the drive of the first drive motor 32c and stops approximately 2mm from the bottom of the second cup 2c. The stirring drive mechanism 13c then operates again at 300rpm, allowing the clean water in the second cup 2c to thoroughly clean it under the action of the stirring teeth 15. This process is repeated every 20 seconds, stopping for 10 seconds, and repeating five times. After cleaning is complete, the water pump is turned off, the first cleaning motor 40c stops, and the bottom of the first cup 6c... Driven by motor 32c, the first cup bottom 6c descends again to 5mm from the bottom of the second cup 2c and remains still for 1 minute to allow the cleaning fluid to drain completely. After the cleaning fluid has drained completely, driven by the first drive motor 32c, the first cup bottom 6c rises to 2mm from the bottom of the second cup 2c. At this time, the solenoid valves on the first waste liquid valve 10c and the first cleaning pipe 28c are both open, controlling the three-way solenoid valve of the water-air pump input circuit to switch to the air circuit. At the same time, the heating element 7c starts to be powered on for heating. The water-air pump starts to work, and the airflow temperature is controlled at 60℃ by the temperature and humidity sensor 12c.Under pressure from the water pump, the airflow reaches the center pile 11c via the rotary joint 4. The first cleaning motor 40c starts rotating the center pile 11c at a speed of 100 rpm. The airflow passes through the cleaning hole of the center pile 11c and is sprayed onto the inner wall of the second slurry cup 2c and the bottom of the first cup 6c to achieve the purpose of drying them. The hot airflow also flows into the distillation tube and the second measuring cylinder 3c through the first cleaning pipe 28c to achieve the purpose of drying the inner wall of the distillation tube, the inner wall of the second measuring cylinder 3c, and the second measuring electrode 9c. After working for 3 minutes, the drying work is completed. The first cleaning motor 40c stops working, the bottom of the first cup 6c rises under the drive of the first drive motor 32c and closes with the lower end of the second slurry cup 2c. The solenoid valve and the first waste liquid valve 10c on the first cleaning pipe 28c are both closed. The entire operation is completed, and we await the next experiment.

[0148] The cleaning of the water loss performance measurement module is performed as follows: After the mud cake test is completed, the second test motor 38d drives the winding column 43d, pulling the viscous block 45d upward and locking it into the storage slot at the lower end of the take-up block 44d. The first test motor 37d drives the test screw 42d, causing the first test frame 35d to rise again to the top. The push rod 69d drives another actuating rod to rise, causing the cleaning box 54d to reset and flip up. The first test motor 37d drives the test screw 42d, causing the first test frame 35d to descend again, causing the take-up block 44d and the thickness probe 47d to descend into the cleaning box 54d. Finally, the second cleaning pipe 55d starts spraying water to clean the viscous block 45d and the thickness probe 47d. After cleaning, the first test frame 35d rises to the top again. The cleaning box 54d is flipped up, and the first test motor 37d drives the test screw 42d to lower the first test frame 35d again, causing the take-up block 44d and the thickness probe 47d to descend to the ready working height. The second synchronous belt 31d and the third synchronous belt 32d pull the filter belt 33d to rotate. Clean water is injected into the central cylinder 52d by the water-air pump. At the same time, the central cylinder 52d is driven to rotate by the second cleaning motor 53d. The clean water cleans the inner wall of the third slurry cup 2d through the cleaning hole on the central cylinder 52d. While cleaning the third slurry cup 2d, the third measuring cylinder 19d and the second waste liquid valve 21d are also cleaned. The outflowing cleaning liquid flows into the collection box 70d below. After repeating this process several times, the water-air pump switches the input path to input hot air to dry the third slurry cup 2d and the third measuring cylinder 19d. After drying, the filter belt 33d moves the new filter paper between the third slurry cup 2d and the bottom of the second cup 4d. The bottom of the second cup 4d rises and clamps the filter paper. The adhesive around the edges of the filter paper acts as a sealing ring. At the same time, the locking motor 10d drives the locking screw 6d to seal the third slurry cup 2d and the second cup cover 3d. As the experiment progresses, the used filter paper and filter belt 33d will be discharged from below the second base 1d.

[0149] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A modular drilling fluid routine property testing system, characterized by The test dock comprises a box structure and sand content measuring function module, rheological property measuring function module, oil-water-solid phase measuring function module and fluid loss performance measuring function module which are arranged in the test dock from front to back; The sand content measuring function module comprises a first slurry cup, a sand separation main pipe, a first measuring cylinder and a fixing frame, the first slurry cup is fixed on the upper right part of the fixing frame, the first measuring cylinder is fixed on the lower left part of the fixing frame, and the sand separation main pipe is arranged on the fixing frame between the first slurry cup and the first measuring cylinder; a slurry cup flushing pipe is communicated with the first slurry cup, a filter screen is horizontally fixed in the sand separation main pipe to divide the sand separation main pipe into an upper chamber and a lower chamber, the filter screen and the sand separation main pipe are both inclined from left bottom to right top, the left end of the filter screen is spaced apart from the inner wall of the left end of the sand separation main pipe, the liquid outlet at the bottom of the first slurry cup is located at the right liquid inlet end of the sand separation main pipe above the filter screen, a tapered plug blocking mechanism capable of opening and closing the liquid outlet at the bottom of the first slurry cup is arranged at the liquid outlet, an upper chamber opening and closing mechanism capable of opening and closing the left end of the upper chamber is arranged at the left upper end of the filter screen, at least one upper flushing pipe is fixedly communicated with the left end of the sand separation main pipe corresponding to the left of the upper chamber opening and closing mechanism, at least one lower flushing pipe is fixedly communicated with the sand separation main pipe corresponding to the lower chamber, a vibration motor is arranged on the sand separation main pipe, and the left liquid outlet end of the sand separation main pipe is communicated with the upper liquid inlet end of the first measuring cylinder, a valve is fixedly installed on the liquid outlet end of the first measuring cylinder; The rheological property measuring function module comprises a viscosity testing mechanism, a rheological property testing mechanism and a bearing support; the viscosity testing mechanism comprises a conical funnel and a mud tank, a mud injection pipe is communicated with the upper part of the conical funnel, a funnel blocking mechanism capable of blocking the outlet of the conical funnel is fixedly installed on the outlet of the conical funnel, a high liquid level monitoring module capable of monitoring the mud liquid level of the conical funnel reaching an upper limit set value and a low liquid level monitoring module capable of monitoring the mud liquid level of the conical funnel falling to a lower limit set value are arranged on the conical funnel; the rheological property testing mechanism comprises an inner cylinder, a lower rotating cylinder, a rheological property testing module, a vertical movement driving mechanism capable of driving the lower rotating cylinder to move up and down and a rotating driving mechanism capable of driving the lower rotating cylinder to rotate, the inner cylinder shaft is fixed on the inner cylinder, the upper part of the inner cylinder shaft is fixedly connected with the bearing support through a deformation piece, the rheological property testing module is fixed on the deformation piece, one end of the rotating driving mechanism is connected with the lower rotating cylinder, and a working hole is arranged on the top of the mud tank, the lower rotating cylinder can pass through the working hole up and down, the lower rotating cylinder is located outside the inner cylinder, and there is a gap between the lower rotating cylinder and the inner cylinder; The oil-water-solid phase measurement function module comprises a first base, a second slurry cup, a stirring driving mechanism, a first driving mechanism, a second driving mechanism, a distillation pipe, a center pile and a second measuring cylinder, the second slurry cup in a hollow structure is fixedly installed on the left part of the first base, the upper end of the second slurry cup is sealingly and fixedly installed with a first cup cover, a rotary joint is arranged above the first cup cover, a first installation hole in communication between the inside and the outside is arranged in the center of the first cup cover, the center pile in a cylindrical structure with a closed lower end is sealingly and rotatably installed at the lower end of the rotary joint, the center pile is sealingly and penetrates through the first installation hole and is located at the lower part of the second slurry cup, the lower part of the center pile is discretely and radially provided with cleaning holes, a grouting pipe is fixedly and communicatively arranged at the left side of the upper part of the second slurry cup, the first cup cover is sealingly installed with a first cup bottom, the upper part of the first cup bottom is provided with a heating sheet extending out of the lower end of the first cup bottom, the lower end of the first cup cover is provided with a first fixing hole and a second fixing hole in communication between the upper and the lower, the first fixing hole is sealingly and fixedly installed with a temperature and humidity sensor connected with the heating sheet, the second fixing hole is sealingly and fixedly installed with a first measuring electrode for measuring the liquid level of the slurry in the second slurry cup and connected with the heating sheet, the lower part of the first base is provided with the first driving mechanism capable of moving the first cup bottom up and down, the center of the first cup bottom is provided with a stirring hole in communication between the upper and the lower, the lower part of the first base corresponding to the position of the stirring hole is fixedly installed with the stirring driving mechanism, the upper end of the stirring shaft of the stirring driving mechanism is sealingly and penetrates through the stirring hole and is located below the center pile, the outer side of the upper part of the stirring shaft corresponding to the position above the first cup bottom is circumferentially and uniformly provided with a plurality of stirring teeth, the right part of the first base corresponding to the position right to the second slurry cup is fixedly installed with the second measuring cylinder, the inner side of the upper end of the second measuring cylinder is provided with a second measuring electrode capable of measuring the electrical conductivity and a distillation pipe in communication with the upper end of the second slurry cup, the right part of the first base is provided with the second driving mechanism capable of moving the second measuring electrode up and down, the lower end of the second measuring cylinder is provided with a drainage hole, the lower part of the first base is provided with a first waste liquid valve capable of opening and closing the drainage hole. The water loss performance measuring function module comprises a second base, a mud cake generating assembly, a filter paper conveying assembly, a mud cake testing assembly and a cleaning assembly. The second base is provided with the mud cake generating assembly for generating mud cake of drilling fluid and the mud cake testing assembly for testing thickness and viscosity coefficient of the mud cake from right to left at intervals. The second base is further provided with the filter paper conveying assembly for conveying the mud cake generated by the mud cake generating assembly to the mud cake testing assembly. The filter paper conveying assembly is provided with the cleaning assembly on the upper side. The mud cake generating assembly comprises a third slurry cup, a second cup cover, a second cup bottom, a locking screw, a locking gear, a locking motor and a gear ring. The second cup cover with an upper and lower through injection hole is fixedly installed on the upper side of the right part of the second base. The third slurry cup with a hollow structure is arranged below the second cup cover. At least three connecting ears are distributed at intervals along the circumference on the outer side of the upper end of the third slurry cup. A locking threaded hole is arranged on the upper end of each connecting ear. A locking screw is screwed in each locking threaded hole. A fixed plate is fixedly installed on the outer side of the second cup cover corresponding to the position of each connecting ear. The upper end of each locking screw is rotatably installed with the fixed plate at the corresponding position. A locking gear is fixedly installed on the outer side of the upper part of the locking screw corresponding to the lower side of each fixed plate. A plurality of fixed ears are evenly distributed along the circumference on the outer side of the middle part of the third slurry cup. A fixed ring is fixedly installed on the outer side of the lower part of the third slurry cup. A connecting through hole corresponding to the fixed ear is arranged on the lower side of the fixed ring. A guide hole passing through the upper and lower sides is arranged on the upper side of each fixed ear corresponding to the position of each connecting through hole. A slide shaft with a limiting block fixedly installed below the corresponding connecting through hole is sleeved in each guide hole. A guide gear is fixedly installed on the outer side of the upper part of the slide shaft corresponding to the upper side of each fixed ear. A compression spring is arranged between the outer side of the lower part of the slide shaft corresponding to the lower side of each fixed ear and the upper side of the fixed ring corresponding to the position. A locking motor is fixedly installed in the middle part of the second base corresponding to the leftmost slide shaft. A locking drive gear is fixedly installed on the outer side of the upper end of the output shaft of the locking motor. The upper part of the leftmost guide gear is drivingly connected with the locking drive gear through a first synchronous belt. The lower outer side of the third slurry cup is sleeved with a gear ring which is in mesh with all the locking gears and all the guide gears. The lower side of the third slurry cup is provided with a corresponding second cup bottom. The right part of the filter paper conveying assembly is arranged between the upper side of the second cup bottom and the lower side of the third slurry cup. A lifting driving mechanism capable of driving the second cup bottom to move up and down is arranged on the lower part of the second base. A filter hole passing through the upper and lower sides is arranged in the center of the second cup bottom. A filter tube is sealingly and fixedly installed in the filter hole. A liquid discharge valve is arranged on the filter tube. A third measuring cylinder is fixedly installed on the inner side of the lower part of the second base corresponding to the lower side of the filter tube. A liquid discharge hole is arranged on the lower end of the third measuring cylinder. A second waste liquid valve capable of opening and closing the liquid discharge hole is arranged on the lower part of the second base. The left part of the test dock is provided with an observation hole passing through left and right. The observation hole is provided with a first observation baffle, a second observation baffle, a third observation baffle and a fourth observation baffle corresponding to the sand-containing measuring function module, the rheological property measuring function module, the oil-water-solid phase measuring function module and the water loss performance measuring function module, respectively.

2. The modular drilling fluid routine property testing system of claim 1, wherein The sand content measuring function module further comprises a control part, the valve is an electric valve, a liquid level detection module is arranged in the first cup and the first measuring cylinder respectively, and the control part is electrically connected with the control end of the plug sealing mechanism, the control end of the upper chamber opening and closing mechanism, the liquid level detection module and the electric valve respectively; or / and, the funnel sealing mechanism comprises a funnel plug, a plug rod and a push rod driving mechanism capable of driving the plug rod to move left and right, the plug rod is in an L shape, a plug rod operation long hole is arranged at the top of the mud tank outside the conical funnel, the plug rod is in an inclined shape and extends into the mud tank from the plug rod operation long hole, the short section of the L-shaped plug rod is fixedly connected with the bottom end of the funnel plug, the funnel plug is installed at the bottom outlet of the conical funnel, the push rod driving mechanism comprises a push rod driving motor, and the power output end of the push rod driving motor is fixedly connected with the long section of the L-shaped plug rod; or / and, a first liquid receiving box is sleeved outside the stirring driving mechanism, the first liquid receiving box is provided with an annular first liquid receiving groove with an opening upward, the upper end of the first liquid receiving box is fixedly and sealingly connected with the lower end of the first cup bottom, and the bottom of the first liquid receiving groove is fixedly and communicatively connected with a plurality of first liquid discharge pipes at intervals; the first driving mechanism comprises a first driving motor, a first screw rod, a first nut and a second support frame, the first driving motor is fixedly installed on the first base corresponding to the position between the first liquid receiving box and the stirring driving mechanism, the output shaft of the first driving motor is in transmission connection with the lower end of the first screw rod arranged below the first cup bottom, the lower end of the first cup bottom is fixedly installed with an L-shaped second support frame, and the second support frame is fixedly installed with the first nut screwed on the outer side of the upper end of the first screw rod; or / and, the second driving mechanism comprises a second driving motor, a second screw rod, a second nut and a guide rod, the second driving motor is fixedly installed on the right side of the first base, the upper end of the second driving motor is in transmission connection with the lower end of the second screw rod rotatably installed on the first base, the guide rod is vertically arranged on the first base corresponding to the left position of the second screw rod, the guide rod is coaxially sleeved with a sliding sleeve, the sliding sleeve is fixedly installed with the second nut screwed on the outer side of the second screw rod, and the left part of the sliding sleeve is fixedly connected with the upper end of the second measuring electrode.Or / and, the filter paper conveying assembly comprises a conveying motor, a driving shaft, a second synchronous belt, a third synchronous belt and a filter screen belt, a front-to-back driving shaft is rotatably installed on the lower part of the second base corresponding to the position of the right lower part of the second cup bottom, a first driven shaft is rotatably installed on the left part of the second base corresponding to the position of the left of the driving shaft, a second driven shaft is rotatably installed on the middle part of the second base corresponding to the position of the left upper part of the first driven shaft, a third driven shaft is rotatably installed on the left part of the second base corresponding to the position between the third pulp cup and the third synchronous belt, a fourth driven shaft and a fifth driven shaft are rotatably installed on the upper part of the second base corresponding to the position between the third synchronous belt and the third pulp cup, a sixth driven shaft is rotatably installed on the right part of the second base corresponding to the position of the right of the second cup bottom, a conveying motor is fixedly installed on the inner side of the lower part of the second base corresponding to the position of the left upper part of the driving shaft, the front end of the output shaft of the conveying motor and the rear part of the driving shaft are drivingly connected together through pulleys, a front driving gear and a rear driving gear are fixedly installed on the outer side of the front part and the outer side of the rear part of the driving shaft respectively, a first front driven gear, a second front driven gear, a third front driven gear, a fourth front driven gear, a fifth front driven gear and a sixth front driven gear are fixedly installed on the outer side of the front part of the first driven shaft, the outer side of the front part of the second driven shaft, the outer side of the front part of the third driven shaft, the outer side of the front part of the fourth driven shaft, the outer side of the front part of the fifth driven shaft and the outer side of the front part of the sixth driven shaft respectively, a first rear driven gear, a second rear driven gear, a third rear driven gear, a fourth rear driven gear, a fifth rear driven gear and a sixth rear driven gear are fixedly installed on the outer side of the rear part of the first driven shaft, the outer side of the rear part of the second driven shaft, the outer side of the rear part of the third driven shaft, the outer side of the rear part of the fourth driven shaft, the outer side of the rear part of the fifth driven shaft and the outer side of the rear part of the sixth driven shaft respectively, the front driving gear, the first front driven gear, the second front driven gear, the third front driven gear, the fourth front driven gear, the fifth front driven gear and the sixth front driven gear are drivingly connected together through the second synchronous belt, the rear driving gear, the first rear driven gear, the second rear driven gear, the third rear driven gear, the fourth rear driven gear, the fifth rear driven gear and the sixth rear driven gear are drivingly connected together through the third synchronous belt which has the same structure as the second synchronous belt and is symmetrically distributed, a filter screen belt is fixedly installed on the outer ring surface of the second synchronous belt corresponding to the position between the third pulp cup and the second cup bottom, and the filter screen belt is fixedly installed on the outer ring surface of the third synchronous belt corresponding to the position between the third pulp cup and the second cup bottom.

3. The modular drilling fluid routine property testing system of claim 2, wherein The plug sealing mechanism comprises a plug and a vertical movement mechanism for driving the plug to move up and down, the outer wall of the plug is a tapered surface with a small upper part and a large lower part, the plug is arranged at the liquid outlet at the bottom of the first pulp cup, the vertical movement mechanism comprises a lead screw stepper motor, a guide rail and a sliding sleeve capable of sliding up and down on the guide rail, the lead screw stepper motor is fixed on the fixed frame on the left side of the sand separation main body pipe, the guide rail is fixed on the fixed frame on the right side of the lead screw stepper motor, a nut is installed on the outer side of the lead screw of the lead screw stepper motor, the right end of the plug is fixedly connected with the left side of the nut through a connecting part, the right side of the nut is fixedly connected with the sliding sleeve, the control part adopts a first single-chip microcomputer, the first single-chip microcomputer is electrically connected with the control end of the lead screw stepper motor, the control end of the digital rudder, the liquid level detection module and the electric valve respectively; or / and, the vertical movement driving mechanism comprises a through-type lead screw stepper motor, a pair of first slide rails and a first support frame, the left end of the first support frame is fixedly connected with the lower rotating drum, the pair of first slide rails are respectively fixed on the front and rear sides of the bearing support frame, the ball nut of the through-type lead screw stepper motor is fixedly connected with the first support frame, the upper end of the ball screw of the through-type lead screw stepper motor is fixedly connected with the bearing support frame, and the front and rear sides of the first support frame are respectively provided with sliding blocks corresponding to the first slide rails; or / and, the rotating driving mechanism comprises a stepper motor and a transmission mechanism, the stepper motor is fixed on the first support frame, the power output end of the stepper motor is connected with the power input end of the transmission mechanism, the transmission mechanism comprises a driving pulley, a driven pulley and a transmission belt, the driving pulley is installed on the power output end of the stepper motor, the driven pulley is fixed on the outer side of the lower rotating drum, and the driving pulley and the driven pulley are connected through the transmission belt; or / and, at least one flushing pipe is communicated with the top of the conical funnel, and the water outlet of the flushing pipe is tangent to the inner wall surface of the conical funnel; or / and, a brush tool is fixedly installed on the inner drum shaft above the inner drum through a bearing, and at least one outer drum flushing pipe capable of flushing the inner wall of the outer drum is distributed on the outer side of the upper part of the brush tool in a circumferential direction; or / and, the inner wall of the lower end of the second pulp cup is a tapered surface with a small upper part and a large lower part, the outer side of the first cup bottom is matched with the inner wall of the lower end of the second pulp cup, the outer diameter of the first liquid receiving groove is not less than the inner diameter of the lower end of the second pulp cup, a U-shaped second liquid receiving box with an opening to the left is fixedly installed on the lower part of the first base corresponding to the position of the first liquid receiving box, a second liquid receiving groove with an opening upward and in a U shape is arranged in the second liquid receiving box, the lower end of each first liquid discharge pipe is located in the second liquid receiving groove, a plurality of second liquid discharge pipes are fixedly and communicatively arranged at the bottom of the second liquid receiving groove, a fixed seat with the upper end fixedly installed together with the lower side of the stirring driving mechanism is fixedly installed on the inner side of the second liquid receiving box, an installation seat is fixedly installed on the lower part of the first base corresponding to the position of the left side of the fixed seat, the upper side of the installation seat is fixedly installed together with the lower side of the first driving motor, a third liquid receiving box is fixedly installed on the lower part of the first base corresponding to the position of the lower side of the first waste liquid valve, and a third liquid discharge pipe is fixedly and communicatively arranged on the right side of the lower part of the third liquid receiving box.Or / and, the mud cake test assembly comprises a test seat, a first test frame, a second test frame, a first test motor, a second test motor, an electric push rod, a test plate, a viscous block and a control unit, the test seat is fixedly installed on the upper side of the left part of the second base and located above the filter screen belt, the first test frame is slidingly installed on the test seat in the up-down direction, the upper part of the first test frame is provided with a test screw hole penetrating through the up-down direction, a test screw rod is screwed in the test screw hole, the right part of the test seat is fixedly installed with the first test motor, the output shaft of the first test motor is in transmission connection with the lower end of the test screw rod, the left rear side of the first test frame is fixedly installed with the second test frame, the second test frame is fixedly installed with the second test motor, the upper part of the second test frame is rotatably installed with a winding column, the lower end of which is in transmission connection with the left end of the output shaft of the second test motor, the lower part of the second test frame corresponding to the position below the winding column is fixedly installed with a retractable block, the lower side of the retractable block is provided with a receiving groove opening downward and penetrating through the left-right direction, the upper end of the retractable block is provided with two wire holes extending to the bottom wall of the receiving groove in the left-right direction, each wire hole is provided with a retractable rope, the first end of which is wound several turns and fixedly installed with the winding column, the second end of each retractable rope is fixedly installed with a viscous block matched with the receiving groove in the upper part, each wire hole is provided with an induction magnet sleeved on the outer side of the retractable rope, the lower side of the second test frame corresponding to the position right to the retractable block is fixedly installed with a thickness probe located below the viscous block, the upper side of the test plate is in contact with the inner ring surface of the upper part of the filter screen belt, the test plate is provided with a hinge ear rotatably installed with the third driven shaft corresponding to the position, the electric push rod is hingedly connected between the right lower side of the test plate and the left inner side of the second base, the left lower side of the test plate is provided with a gyroscope and a hall sensor corresponding to the induction magnet, the thickness probe, the gyroscope and the hall sensor are electrically connected with the control unit, and the control unit is electrically connected with the first test motor, the second test motor and the conveying motor.

4. The modular drilling fluid routine property testing system of claim 3, wherein The cleaning assembly comprises a rotary joint, a central cylinder, a second cleaning motor, a cleaning box and a second cleaning pipe. The rotary joint is arranged above the second cup cover. The lower end of the rotary joint is sealingly and rotatably connected with the central cylinder which is a cylindrical structure with a closed lower end. The lower end of the central cylinder is sealingly arranged in the lower part of the third slurry cup through the grouting hole. The lower part of the central cylinder is discretely provided with radial through cleaning holes. The second cleaning motor is fixedly arranged on the second base corresponding to the right position of the second cup cover and is electrically connected with the control unit. The output shaft of the second cleaning motor is connected with the upper part of the central cylinder through a belt transmission. The first test frame is rotatably arranged on the lower side of the left part of the first test frame. The first test frame is rotatably arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe. The first test frame is fixedly arranged on the lower side of the first test frame. The first test frame is fixedly arranged on the left part of the first test frame. The cleaning box is fixedly arranged on the right end of the cleaning box. The cleaning box is fixedly connected with the second cleaning pipe.

5. The modular drilling fluid routine property testing system of claim 3 or 4, wherein The inner wall of the lower end of the third pulp cup is a taper surface with a small upper end and a large lower end, the outer side of the second cup bottom matches the inner side of the lower end of the third pulp cup, the lower side of the second cup bottom is fixedly installed with an annular liquid collecting box, the liquid collecting box has an annular groove with an upward opening, the outer diameter of the annular groove is larger than the outer diameter of the second cup bottom, the bottom of the liquid collecting box is fixedly and spacedly connected with a plurality of liquid discharge pipes, the lifting driving mechanism comprises a lifting lead screw, a mounting bracket, a supporting plate, a second sliding rail, a guide rail and a lifting motor electrically connected with the control unit, the lower side of the second cup bottom corresponding to the position of the outer side of the filter pipe is fixedly installed with an L-shaped supporting plate, the lower part of the supporting plate is provided with a threaded hole, the mounting bracket is fixedly installed in the second base corresponding to the position below the supporting plate, the lifting motor is fixedly installed on the mounting bracket, the output shaft of the lifting motor is in transmission connection with the lower end of the lifting lead screw screwed into the threaded hole, and the outer side of the liquid collecting box is spacedly and uniformly distributed with a plurality of second sliding rails, the upper end of each second sliding rail is provided with a guide groove penetrating up and down and having an outward opening, and the second base corresponding to the position of each second sliding rail is fixedly installed with a guide rail matched with the guide groove.

6. The modular drilling fluid routine property testing system of claim 1 or 2 or 3 or 4, wherein The upper chamber opening and closing mechanism comprises a digital steering engine and a gate, the digital steering engine is fixedly installed on the upper left part of the sand separation main pipe, the gate is installed on the left end of the upper chamber through a rotating shaft, and the power output end of the digital steering engine is connected with the rotating shaft; or / and, the left liquid outlet end of the sand separation main pipe is in communication with the liquid inlet end of the upper end of the first measuring cylinder through a buffer pipe, the left liquid outlet end of the sand separation main pipe is in the shape of a taper with a wide upper end and a narrow lower end, and the buffer pipe is in the shape of a funnel; or / and, the rheological test module comprises a strain sheet, the deforming piece is made of spring steel sheet, an electric mixer and a mud tank liquid level electrode are arranged on the mud tank, a liquid discharge port is arranged at the lower part of the mud tank, the high liquid level monitoring module is a high electrode for monitoring the high liquid level, and the low liquid level monitoring module is a low electrode for monitoring the low liquid level; or / and, the distillation pipe comprises a connecting section, a condensing section and a converging section, the left end of the connecting section is fixedly communicated with the outer side of the upper part of the second pulp cup, the right end of the connecting section is fixedly communicated with the left end of the condensing section in the shape of left high and right low, the right end of the condensing section is fixedly communicated with the upper end of the converging section arranged vertically and located at the inner side of the upper part of the second measuring cylinder, the connecting section is fixedly communicated with a first cleaning pipe, the first cleaning pipe is provided with an electromagnetic valve, a plurality of heat dissipation fins are arranged on the outer side of the condensing section in the axial direction from left to right, one side of each heat dissipation fin away from the condensing section is provided with a heat dissipation fan, and each heat dissipation fan is connected with a temperature and humidity sensor.

7. The modular drilling fluid routine property testing system of claim 5, wherein The upper chamber opening and closing mechanism comprises a digital steering engine and a gate, the digital steering engine is fixedly installed at the upper left part of the sand separation main body pipe, the gate is installed at the left end of the upper chamber through a rotating shaft, and the power output end of the digital steering engine is connected with the rotating shaft; or / and, the left liquid outlet end of the sand separation main body pipe is communicated with the upper end liquid inlet end of the first measuring cylinder through a buffer pipe, the left liquid outlet end of the sand separation main body pipe is in a tapered shape with the upper part being wide and the lower part being narrow, and the buffer pipe is in a funnel shape; or / and, the rheological property test module comprises a strain gauge, the deforming piece is made of spring steel, an electric mixer and a mud tank liquid level electrode are arranged on the mud tank, and a liquid outlet is arranged at the lower part of the mud tank; the high liquid level monitoring module is a high electrode for monitoring the high liquid level, and the low liquid level monitoring module is a low electrode for monitoring the low liquid level; or / and, the distillation pipe comprises a connecting section, a condensing section and a converging section, the left end of the connecting section is fixedly communicated with the upper part of the outer side of the second mud cup, the right end of the connecting section is fixedly communicated with the left end of the condensing section which is inclined in a left high and right low shape, the right end of the condensing section is fixedly communicated with the upper end of the converging section which is vertically arranged and located at the upper part of the inner side of the second measuring cylinder, a first cleaning pipe is fixedly communicated with the connecting section, an electromagnetic valve is arranged on the first cleaning pipe, a plurality of heat dissipation fins are sequentially arranged on the outer side of the condensing section from left to right along the axial direction, and each heat dissipation fin is provided with a heat dissipation fan on the side away from the condensing section, and each heat dissipation fan is connected with a temperature and humidity sensor.

8. The modular drilling fluid routine property testing system of claim 7, wherein A waste liquid box is arranged below the liquid outlet end of the first measuring cylinder; or / and, a mud cover is fixedly arranged on the top of the first mud cup, and a mud cup flushing pipe is arranged on the mud cover; or / and, the rheological property measurement function module further comprises a second single-chip microcomputer, the second single-chip microcomputer is electrically connected with the control end of the through-type screw stepper motor, the control end of the stepper motor, the control end of the electric mixer, the push rod driving motor, the mud tank liquid level electrode, the high electrode and the low electrode; or / and, a first cleaning motor is fixedly installed on the upper part of the first base corresponding to the left position of the second mud cup, and the output shaft upper end outer side of the first cleaning motor is drivingly connected with the upper part outer side of the central pile through a belt wheel; or / and, the mud cake generating assembly further comprises a pressure relief valve and a liquid level meter, the pressure relief hole and the measuring hole are arranged in the second cup cover in a through manner from top to bottom, the pressure relief valve is sealingly installed in the pressure relief hole, the liquid level meter is sealingly installed in the measuring hole, and the pressure relief valve and the liquid level meter are electrically connected with the control unit; a host computer is fixedly installed on the upper left side of the test dock corresponding to the position above the observation hole, and the host computer is connected with the control unit, the first single-chip microcomputer and the second single-chip microcomputer.

9. A method of testing a modular drilling fluid routine property detection system according to claim 8, characterized in that The method comprises a sand content measurement method, a funnel viscosity measurement method, a rheological property measurement method, an oil-water-solid phase measurement method, a medium pressure fluid loss measurement method, a mud cake thickness measurement method and a mud cake viscosity coefficient measurement method. The sand content measurement method is performed according to the following method: step one, taking sand: the mud required for testing is injected into the first mud cup through the mud cup water injection pipe, and whether the required amount of mud injection liquid level is reached is determined by the liquid level detection module; when the mud in the first mud cup reaches the required amount, the lead screw stepper motor is started, and the cone plug is driven downward by the lead screw stepper motor, the first mud cup bottom discharge port is opened, and the mud flows into the sand separation main body pipe through the first mud cup bottom discharge port; in order to make the mud flow smoothly through the filter screen, the vibration motor above the sand separation main body pipe starts to vibrate while the mud is injected into the sand separation main body pipe, and clean water is injected through the upper and lower flushing pipes to make the mud flow smoothly through the filter screen; the filtered sand is collected on the filter screen on the right side of the gate of the upper chamber, and the washing liquid formed by the washing mud flows into the first measuring cylinder; the lower end valve of the first measuring cylinder is opened, and the washing liquid in the first measuring cylinder flows into the waste liquid box, and finally flows out through the drain of the waste liquid box; after the mud is washed, the cone plug is driven upward by the lead screw stepper motor, the first mud cup bottom discharge port is closed, and the next step is entered; step two, sand dropping and measuring: the lower end valve of the first measuring cylinder is closed, the lower end discharge port of the first measuring cylinder is closed, the digital rudder control shaft is rotated clockwise by a certain angle, the gate is opened to the left, and the filtered sand falls into the first measuring cylinder; the required amount of clean water is injected into the first mud cup, the first mud cup bottom discharge port is opened, and clean water is injected through the upper and lower flushing pipes; the sand on the right side of the gate and the sand on the filter screen are washed into the first measuring cylinder, and the liquid level in the first measuring cylinder is measured and compared with the injected clean water liquid level; the difference between the two volumes is the volume of the sand, and the sand content result is obtained; The funnel viscosity measurement method is performed according to the following method: mud is poured into the conical funnel through the grouting pipe, the high electrode and the low electrode measure the liquid level of the mud in the conical funnel, the high electrode measures whether the liquid level reaches the upper limit set value, when the conductivity of the high electrode changes sharply, it is determined that the liquid level has reached the upper limit set value, then the push rod driving motor drives the cone plug rod to move to the right, the cone plug rod drives the funnel cone plug to open, after the funnel cone plug is opened, the mud in the conical funnel starts to flow out, at the same time, the time starts to be counted, the mud flows into the mud tank below the conical funnel, during which whether the required amount of mud has flowed out from the conical funnel is determined by determining the conductivity of the low electrode; when the conductivity of the low electrode changes sharply, the liquid level has dropped to meet the required amount of mud flow out, at this time, the time is stopped and the time consumed is recorded, and the funnel viscosity of the mud is calculated according to the recorded time. The rheological property measurement method is performed in the following manner: all the mud in the conical funnel is discharged into the mud tank, the lower rotating cylinder is lowered to the testing position in the mud tank by the through-type screw stepping motor, the stepping motor drives the lower rotating cylinder to start rotating at six different speeds, there is a gap between the lower rotating cylinder and the inner cylinder in the middle, which is filled with mud, the lower rotating cylinder drives the mud to rotate when rotating, the mud drives the inner cylinder to rotate and deviate due to its viscosity, causing the spring steel sheet to bend and deform, the resistance of the strain gauge attached to the spring steel sheet changes, which is converted into a torque deflection value, and the rheological property value measurement is completed; The oil-water solid phase measurement method is performed in the following manner: step one, distillation: the second slurry cup is injected with the mud to be measured through the grouting pipe, then the heating sheet and the stirring drive mechanism are started at the same time, the heating sheet heats the mud to be measured, and the stirring drive mechanism drives the stirring teeth to stir the mud to be measured, the temperature and humidity sensor monitors the temperature of the mud to be measured and the humidity of the second slurry cup and controls the operation of the heating sheet; step two, measurement: the second drive mechanism drives the second measurement electrode to move up and down, when the electrical conductivity measured by the second measurement electrode changes significantly, the lower end surface of the second measurement electrode is the oil-water interface, the position of the lower end of the second measurement electrode in the second measuring cylinder is recorded, and the volume of water or oil is calculated; The medium-pressure fluid loss measurement method is performed in the following manner: filter paper is placed on the filter screen on the bottom of the second cup, the second cup is moved up by the lifting motor and sealed with the lower end of the third slurry cup, the drain valve is closed, drilling fluid is injected into the third slurry cup through the drilling fluid pump, the locking motor is started, the locking motor drives the gear ring and the locking screw to rotate, the locking screw drives the third slurry cup to move up and seal with the second cup cover, then air is injected into the third slurry cup through the central cylinder by the high-pressure air pump and pressurized, then the drain valve is opened, when the first drop of filtrate drips from the lower end of the filter pipe, the timing starts, the liquid level in the third measuring cylinder is recorded at the specified time, if there is too much filtrate in the third measuring cylinder, the second waste liquid valve is quickly opened and then closed when the filtrate liquid surface in the third measuring cylinder reaches a certain position, the liquid level is read again, and the filtrate continues to drip, and the liquid level is recorded again, if the filtrate liquid surface in the third measuring cylinder exceeds the specified position again, the above actions are repeated, and finally all the values are recorded for calculating the total volume of the filtrate. The mud cake thickness measurement method is performed in the following manner: after the medium pressure loss of water measurement is completed, the pressure relief valve is opened to release the air pressure in the third cup, and the locking motor drives the locking screw to rotate in the opposite direction, the third cup and the second cup cover are opened, and the lifting motor drives the lifting screw to rotate to lower the second cup bottom, the excess drilling fluid flows into the liquid collection box along the periphery of the second cup bottom, and the mud cake after the excess drilling fluid is released is on the filter paper of the filter screen belt under the third cup, the filter screen belt is driven by the second and third synchronous belts to stop below the cleaning box to the left, the first test motor drives the test screw to drive the first test frame to slide upward, the push rod lifts the front lower push tooth after the second test frame rises, the second and first gears rotate, and finally the cleaning box swings downward from the upper left end, then the first test motor drives the test screw to drive the first test frame to slide downward, the thickness probe is lowered, and the two extreme points of the lower end of the thickness probe are electrified to analyze the conductivity, when the conductivity changes sharply from air to water, and then changes slightly from water to drilling fluid, the difference between the position where the thickness probe is lowered and the position where the thickness probe reaches the extreme low end when the slight change occurs is the thickness of the mud cake; The mud cake viscosity coefficient measurement method is performed in the following manner: after the mud cake thickness is calculated, the second test motor drives the winding column to rotate to release the viscosity block, the piston rod of the electric push rod extends after the viscosity block falls on the mud cake, so that the right end of the test plate is higher than the left end, the gyroscope records the deflection angle of the test plate, and the Hall sensor calculates the magnetic field of the sensing magnet, when the magnetic field changes, it indicates that the viscosity block has displaced along the surface of the mud cake, at this time, the value of the gyroscope is recorded, that is, the angle of the test plate is generated, so that the viscosity coefficient of the mud cake is calculated.

10. The test method of claim 9, wherein It also includes cleaning work, The cleaning work of the sand content measurement function module is performed in the following manner: the first cylinder lower end electric valve is opened, the first cylinder lower end liquid discharge end is opened, the sand and clean water flow into the waste liquid box together, at this time, the first cup bottom liquid discharge port, the gate and the first cylinder lower end liquid discharge end are all in the normal open state; clean water is injected into the cup flushing pipe, the upper flushing pipe and the lower flushing pipe, and the clean water flows through the first cup, the sand separation main pipe, the first cylinder and finally flows into the waste liquid box, and finally is discharged from the waste liquid box drain, After cleaning, hot air is injected into the cup flushing pipe, the upper flushing pipe and the lower flushing pipe, the hot air flows through the first cup, the sand separation main pipe and the first cylinder to dry the various working parts, and after drying, the first cylinder lower end electric valve, the first cup bottom liquid discharge port and the gate are closed; The cleaning work of the rheological property measurement function module is performed in the following manner: the liquid discharge port of the mud tank is opened, the tested mud is discharged, the step motor drives the lower rotating drum to continue rotating, the through-type screw step motor is started to drive the lower rotating drum to rise, the inner cylinder and the brush are in a stationary state, at the same time, the outer cylinder flushing pipe above the brush starts to spray water, the lower rotating drum rises to the cleaning position, at this time, the lower rotating drum is opposite to the brush, the brush is cleaned by spraying water, the brush cleans the inner wall of the lower rotating drum, and the remaining slurry flows into the mud tank, At the same time, the water is injected into the conical funnel through the flushing pipe, and the water is washed along the inner wall of the conical funnel, the funnel plug is always open, the water flows directly into the mud tank, when the water in the mud tank reaches a certain liquid level, the electric mixer on the mud tank starts to stir, the stirred water liquid can clean the inner cylinder left in the mud tank; the waste liquid is discharged from the liquid outlet of the mud tank, and after emptying, the cleaning work is completed; The cleaning work of the oil-water solid phase measurement function module is carried out in the following way: the second drive motor drives the second measurement electrode to rise, the first waste liquid valve is opened, the grouting pipe and the first cleaning pipe are connected with the water gas pump, the water is injected into the center pile by the water gas pump after being pressurized, the first cleaning motor is started, the center pile rotates at a speed not higher than 100 rpm for a period of time, then the first cleaning motor is stopped, the stirring drive mechanism is started to drive the stirring teeth to repeatedly crush and redissolve the solidified mud residue for many times, at the same time, the electromagnetic valve on the first cleaning pipe is opened, the water starts to clean the distillation pipe, the cleaned liquid flows into the second measuring cylinder along the condensing section and the converging section, the second measuring cylinder is cleaned, finally the first drive motor is started, the first cup bottom moves down, the liquid in the second slurry cup flows into the third liquid receiving box through the first liquid receiving groove, the first liquid receiving pipe, the second liquid receiving groove and the second liquid receiving pipe, the first waste liquid valve is opened, the liquid in the second measuring cylinder flows into the third liquid receiving box, When the liquid is drained, the first cup bottom rises under the drive of the first drive motor and leaves a gap with the lower end of the second slurry cup, the first waste liquid valve and the electromagnetic valve on the first cleaning pipe are opened, the water gas pump starts to work, the heating sheet heats the gas, the generated hot gas flows into the second slurry cup, the distillation pipe and the second measuring cylinder, when the hot gas flows into the second slurry cup through the cleaning hole on the center pile, the first cleaning motor drives the center pile to rotate, so that the hot gas uniformly sprays to the inner wall of the second slurry cup; the first cleaning motor stops working, the first cup bottom rises under the drive of the first drive motor and closes with the lower end of the second slurry cup, the electromagnetic valve on the first cleaning pipe and the first waste liquid valve are closed; The cleaning work of the water loss performance measurement function module is performed in the following manner: after the viscosity coefficient measurement is completed, the second test motor drives the winding post, pulls the viscous block to rise and clamps it into the storage groove at the lower end of the storage block, the first test motor drives the test screw to drive the first test frame to rise to the top again, the push rod drives the other push rod to rise to reset the cleaning box to flip up, the first test motor drives the test screw to drive the first test frame to descend again, the storage block and the thickness probe descend into the cleaning box, finally, the second cleaning pipe is connected to the water source to start spraying water to clean the viscous block and the thickness probe, after cleaning is completed, the first test frame rises to the top again, the cleaning box flips up, the first test motor drives the test screw to drive the first test frame to descend again, the storage block and the thickness probe descend to the preparation height, at the same time, the filter screen belt is pulled to rotate by the second and third synchronous belts, clean water is injected into the center cylinder by the water vapor pump, the center cylinder is rotated by the second cleaning motor, the clean water is cleaned through the cleaning holes on the center cylinder to clean the inner wall of the third cup, the drain valve is opened, the third cup is cleaned, and the second waste liquid valve is cleaned, the cleaned liquid flows into the lower liquid collecting box, after the cleaning work is repeated for several times, the water vapor pump inputs hot air into the center cylinder, the hot air flows through the third cup, the filter pipe, the measuring cylinder and the second waste liquid valve in sequence for drying, after drying is completed, the filter screen belt drives the new filter paper to move between the third cup and the second cup bottom, the second cup bottom rises and clamps the filter paper, and at the same time, the locking motor drives the locking screw to seal the third cup and the second cup cover.

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