Automated system for drilling fluid water analysis and testing

Abstract

The present invention discloses an automated system for drilling fluid water analysis and detection, including an inner cup taking component, an inner cup recovery component, and a filtrate detection component; the inner cup taking component includes a positive placement station, a cup taking mechanism, a clamping device, a conveying mechanism for moving the clamping device, a grouting device located on the conveying path of the conveying mechanism, and a pressurized plug located on the conveying path of the conveying mechanism; the inner cup recovery component includes an inner cup clamp for taking the inner cup from the clamping device, a first rotating mechanism, a second rotating mechanism, and a lifting component; the filtrate detection component includes a filter cup, a liquid receiving cup connected to the filter cup in sequence, a liquid taking cup, an injection pump, and a displacement mechanism. The present invention is used to solve the problems of low automation, labor consumption, and only one type of ion titration in the prior art of drilling fluid filtration loss detection, and to achieve the purpose of improving the automation of the inner cup taking and recovery process and being able to quickly perform titration detection of different ions.

Description

Technical Field

[0001] The invention relates to the field of drilling fluid determination, and in particular to an automated system for drilling fluid water analysis and detection. Background Art

[0002] The drilling fluid (mud) is affected by the pressure difference in the well, and some water seeps into the formation. This phenomenon is called the water loss performance or filtration characteristics of the drilling fluid. The water loss (filtration loss) of the drilling fluid has a very important influence on the stability of the drilling fluid system and is an important parameter for maintaining the stability of the well wall. Therefore, in the drilling well site, the drilling fluid engineer or the drilling engineer will frequently measure it. The measurement method in the prior art is to measure it by API water loss meter or high temperature and high pressure water loss meter. The process includes: flipping the instrument upside down and opening the lid, pouring the drilling fluid to be tested into the cup body, laying the filter paper on the inner surface of the lid, reinstalling the lid, flipping the instrument again, so that the lid is at the bottom and the cup body is at the top, hanging the cup body, pressurizing, and starting the measurement. Each measurement process needs to be placed for 7.5 minutes or 30 minutes, and then the filtrate volume is manually read; after each measurement, the instrument needs to be flipped upside down, the lid is opened, the filter paper is taken out and thrown away, and then the cup body and the lid are cleaned, wiped, and dried, which wastes the manpower and time of engineers.

[0003] In order to solve the above problems, the applicant has previously submitted the following patent applications: a disposable container for water loss measurement (2019215386883), a filtration loss measurement component (2019108731972). The core of its technical solution is to use a disposable cup as an inner cup in the filtration loss process, and then cooperate with an outer cup, which can greatly reduce the workload, significantly reduce manpower consumption, reduce measurement time, and improve measurement efficiency. Among them, the outer cup is a fixed structure, and the inner cup uses a special paper cup or plastic cup or other disposable cups. How to realize the automatic use and recovery of the inner cup and improve the automation of drilling fluid filtration loss detection is a difficult problem. In addition, although relatively automated titration equipment such as titrators have appeared in the prior art, they can only titrate one ion at a time, resulting in low work efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide an automated system for drilling fluid water analysis and detection, so as to solve the problems in the prior art of drilling fluid loss detection, such as low automation, labor consumption, and only being able to titrate one ion at a time, so as to achieve the purpose of improving the automation level of the inner cup taking and recovery process and being able to quickly perform titration detection of different ions.

[0005] The present invention is achieved through the following technical solutions:

[0006] An automated system for drilling fluid water analysis and testing, including an inner cup taking component, an inner cup recovery component, and a filtrate testing component;

[0007] The inner cup taking component includes a positive placement station for positively overlapping inner cups, a cup taking mechanism for taking out inner cups one by one from the positive placement station, a clamping device for clamping the inner cups taken out by the cup taking mechanism, a conveying mechanism for moving the clamping device, a grouting device located on the conveying path of the conveying mechanism, and a pressurized plug located on the conveying path of the conveying mechanism;

[0008] The inner cup recovery assembly includes an inner cup clamp for receiving the inner cup from the clamping device, a first rotating mechanism for driving the inner cup clamp to rotate along a horizontal axis, a second rotating mechanism for driving the inner cup clamp to rotate along a vertical axis, and a lifting assembly for driving the inner cup clamp to rise and fall; and also includes an inverted position, which is used for inverted overlapping of the inner cup; the second rotating mechanism can drive the inner cup clamp to reach directly above the inverted position;

[0009] The filtrate detection component includes a filter cup for holding the filtrate lost from the inner cup, a liquid receiving cup connected to the filter cup in sequence, a liquid taking cup, an injection pump, and a shifting mechanism. One station of the shifting mechanism is a waste liquid discharge terminal, and the other stations are connected to the titration cup; the injection pump can output liquid to different stations through the shifting mechanism.

[0010] In view of the problems in the prior art of drilling fluid loss detection that the degree of automation is low, it consumes a lot of manpower, and only one ion can be titrated at a time, the present invention proposes an automated system for drilling fluid water analysis and detection.

[0011] In the inner cup taking assembly, the upright placement station is used to place the inner cups in a stacked manner in the positive direction, wherein the positive direction refers to the inner cups with their open ends facing upwards and stacked in sequence. The cup taking mechanism is used to take out the inner cups one by one from the upright placement station, and transfer the inner cups to the clamping device, clamp the taken out inner cups by the clamping device, and then transport the inner cups to the next station by the conveying mechanism. This solution solves the problem that the drilling fluid loss detection operation can only be performed by manpower in the prior art, significantly reduces manpower consumption and improves the degree of automation. After the clamping mechanism clamps the inner cup, it moves to the bottom of the grouting device, and the drilling fluid to be measured is injected through the grouting device. Then the inner cup filled with drilling fluid is moved to the bottom of the pressure plug, the open end of the inner cup is blocked by the pressure plug and pressurized to achieve normal drilling fluid loss measurement.

[0012] In the inner cup recovery component, the inner cup clamp is used to clamp the inner cup with drilling fluid remaining after the filtration is completed, and then it is rotated to a suitable position in the horizontal direction through the second rotating mechanism, and then the inner cup clamp is driven to rotate in the vertical direction through the first rotating mechanism to tilt it and pour out the remaining drilling fluid. Then the second rotating mechanism is started to a suitable position, and the first rotating mechanism is continued to be started to drive the inner cup clamp to continue to rotate in the vertical direction until the open end of the clamped inner cup faces downward, and the inner cup is lowered by the lifting component. After the inner cup clamp clamps the inner cup, the lifting component can also be used to drive the inner cup clamp upward, so that the inner cup can be stably lifted and moved. This scheme has a high degree of automation and overcomes the need to manually remove the inner cup and dump and discard it after the filtration loss measurement component is used. The inner cup is placed upside down with the open end facing down, and the used inner cups can be stacked in sequence. After stacking a certain number, they can be manually recycled and processed uniformly. Therefore, this scheme achieves the effect of improving the automatic recycling of the inner cup after the filtration loss process is completed. Among them, the transmission method between the first rotating mechanism, the second rotating mechanism, the lifting assembly and the inner cup clamp can use any existing transmission structure, including but not limited to direct connection at the output end, indirect connection, drive of the gear system, belt chain and other transmissions. The lifting and lowering of the inner cup clamp can be achieved by slide rails, guide rails, slide grooves, motor screws and any other existing lifting methods, such as lifting and lowering by a cylinder once, or lifting and lowering in stages by two or even multiple stages of cylinders. Therefore, as long as any existing transmission structure and connection method that can achieve the respective effects of the first rotating mechanism, the second rotating mechanism, and the lifting assembly, it should fall within the protection scope of this application.

[0013] In the filtrate detection component, the filter cup holds the filtrate, and the filtrate enters the liquid receiving cup for storage. When titration detection is required, the filtrate enters the liquid collection cup from the liquid receiving cup and is pumped to different workstations by the injection pump. Among them, the position switching between the injection pump and each workstation is realized by a shifting mechanism. Through the action of the shifting mechanism, the output direction of the injection pump is directed toward different workstations, so that the filtrate can be injected into different titration cups according to the set needs. Each titration cup can be used for titration detection of different ions by the existing titrator, thereby achieving the effect of rapid titration detection of different ions. In addition, by injecting deionized water into the system, and then using the shifting mechanism to make the output end of the injection pump toward the waste liquid discharge end, the entire system pipeline can be quickly flushed, thereby solving the problem that the existing technology can only be cleaned manually. In this solution, the shifting mechanism can adopt any existing technology, as long as it can switch the liquid output direction in the injection pump to different stations. Those skilled in the art can achieve this through existing technology: for example, by moving the direction or position of the output end of the injection pump, or moving the titration cup of each station so that it is facing the output port of the injection pump when needed.

[0014] Preferably, the conveying mechanism is a guide rail, and the clamping device can move on the guide rail. After the clamping mechanism clamps the inner cup, it can move on the guide rail to convey the inner cup to other workstations.

[0015] Furthermore, the upright placement station is a square frame with an open top surface and one side surface; it also includes an inner cup holding assembly facing the upright placement station, and the inner cup holding assembly is used to hold down the inner cup below; the inner cup holding assembly includes two opening and closing pressure plates, and the inner cup holding assembly is driven by a first lifting mechanism to be lifted and lowered. The area formed by the square frame is used to limit the stacked inner cups, and the top is open to facilitate the cup-taking mechanism to take out the cups, and one side is open to facilitate the overall placement of a group of overlapping inner cups. The cup-taking mechanism takes out the inner cups one by one. Since the inner cups are stacked forward, it is most convenient to take them out one by one from the top. For this purpose, an inner cup holding assembly is provided to hold down the inner cup below, thereby ensuring that the cup-taking mechanism only takes out the top inner cup each time it takes out the cups, thereby avoiding waste caused by taking out excess inner cups. The inner cup pressing and holding assembly moves from top to bottom on the first lifting mechanism. The inner cup pressing and holding assembly can be equipped with a sensing device for sensing the top flange of the inner cup. When the inner cup flange is sensed, the two pressing plates can be closed so that the two pressing plates are located below the top flange of the first inner cup, thereby limiting all the inner cups below to avoid being lifted by the first inner cup. The opening and closing of the two pressing plates can be achieved by any existing technology, and can be achieved by those skilled in the art, such as by driving an opening and closing motor, a cylinder, etc., so it will not be described in detail here.

[0016] Furthermore, the cup-taking mechanism includes a suction cup with an opening facing downward, an air extraction pipe connected to the suction cup, a swing arm for driving the air extraction pipe to rotate, and a second lifting mechanism for driving the swing arm to rise and fall. When this solution is working, the height is first raised by the second lifting mechanism to ensure that the bottom of the suction cup is higher than the highest position of the stacked inner cups, and then the swing arm is rotated to drive the suction cup and the air extraction pipe to move to the top of the placement station, and the second lifting mechanism drives the suction cup to move downward, and the suction cup extends to the inside of the top inner cup and abuts against the bottom surface of the inner cup, and then starts to extract air through the air extraction pipe, so that the suction cup absorbs the top inner cup, and then the suction cup is driven upward by the second lifting mechanism to lift the top inner cup; after that, the swing arm rotates to rotate the inner cup to the top of the clamping device, and the second lifting mechanism drives downward again to place the inner cup on the clamping device, and the suction cup is depressurized.

[0017] Furthermore, the inner cup pressurized plug is clamped by a lifting claw; a cup holder is provided below the clamping device, an outer cup matching the inner cup is provided on the cup holder, the cup holder is connected to the clamping device by a spring, a liquid outlet is provided at the bottom of the cup holder, and the filter cup is placed below the liquid outlet. The lifting claw clamps the inner cup pressurized plug, and when the inner cup moves to just below it, the lifting claw descends to press the inner cup pressurized plug into the inner cup filled with drilling fluid. In this solution, a cup holder is provided below the clamping device, and an outer cup matching the inner cup is provided on the cup holder, so that the inner cup can be directly placed in the outer cup, thereby improving the stability during the filtration loss detection process. In addition, the cup holder is connected to the clamping device by a spring, thereby improving the seismic resistance and reducing external vibration interference. A liquid outlet is provided at the bottom of the cup holder, so that it is convenient to match with the liquid outlet of the outer cup and to receive the filtrate below it.

[0018] Furthermore, the inner cup clamp includes two clamping cards that can be opened and closed; the second rotating mechanism drives the inner cup clamp, the first rotating mechanism, and the lifting assembly to rotate synchronously; and also includes a water tank, and the second rotating mechanism can drive the inner cup clamp to pass over the water tank. The inner cup clamp can be equipped with a sensing device for sensing the inner cup. When the inner cup is sensed, the two clamping cards can be closed to clamp the inner cup. Among them, the opening and closing between the two clamping cards can be achieved by any existing technology, and those skilled in the art can achieve it, such as by driving an opening and closing motor, a cylinder, etc., so it will not be repeated here. When the second rotating mechanism is working, it drives the inner cup clamp, the first rotating mechanism, and the lifting assembly to rotate synchronously; when the second rotating mechanism drives the inner cup clamp to come above the water tank, the second rotating mechanism is paused, and the first rotating mechanism is started at this time to tilt the inner cup and pour the remaining drilling fluid in the inner cup into the water tank.

[0019] Furthermore, the second rotating mechanism drives the mounting seat to rotate, a connecting plate is provided on the mounting seat, the first rotating mechanism is installed on the connecting plate, and the output end of the first rotating mechanism is connected to the inner cup clamp; the lifting assembly is used to drive the connecting plate to be lifted and lowered on the mounting seat. In this scheme, the second rotating mechanism works to drive the mounting seat to rotate in the horizontal direction. Since the connecting plate is provided on the mounting seat, the connecting plate rotates synchronously; and since the first rotating mechanism is installed on the connecting plate, the output end of the first rotating mechanism is connected to the inner cup clamp, so that the first rotating mechanism, the inner cup clamp and the clamped inner cup can be horizontally rotated together. Preferably, the connecting plate and the mounting seat are slidably matched, such as through guide rails, slide grooves, etc. The lifting assembly drives the connecting plate to be lifted and lowered on the mounting seat, thereby driving the first rotating mechanism and the inner cup clamp to be lifted and lowered synchronously.

[0020] Preferably, the displacement mechanism is a turntable or a linear guide rail. The titration cup includes a calcium ion titration cup and / or a chloride ion titration cup.

[0021] Furthermore, a liquid level sensor is provided in the liquid receiving cup, a pH detection sensor is provided in the liquid collection cup, a peristaltic pump 1 is connected between the liquid receiving cup and the liquid collection cup; a three-way valve 1 and a three-way valve 2 are connected between the liquid collection cup and the injection pump in sequence; the three-way valve 1 is connected to the liquid collection cup, the three-way valve 2, and the peristaltic pump 2; the three-way valve 2 is connected to the three-way valve 1, the injection pump, and the displacement mechanism; the output end of the peristaltic pump 2 is the waste liquid discharge end 2; and a peristaltic pump 3 is also included for injecting deionized water into the liquid receiving cup. The liquid level sensor is used to monitor the liquid level height in the liquid receiving cup, so as to detect whether the filtrate overflows. The pH detection sensor is used to detect the pH value of the filtrate in the liquid collection cup. A peristaltic pump 1 is connected between the liquid receiving cup and the liquid collection cup, and the filtrate is pumped from the liquid receiving cup to the liquid collection cup through the peristaltic pump 1. Among them, the peristaltic pump 2 is used to discharge the waste liquid or excess filtrate.

[0022] Furthermore, each titration cup is provided with a matching titrator, a reagent addition pipeline, and a deionized water injection pipeline; a peristaltic pump four is provided on the reagent addition pipeline and the deionized water injection pipeline; each titration cup is provided with a discharge pipe, and a peristaltic pump five is provided on the discharge pipe; and a stirrer is provided in each titration cup. The reagent addition pipeline can be set to any number as needed, and each is injected with a reagent to avoid cross contamination. The deionized water injection pipeline is used to inject deionized water after the titration is completed, so as to clean the titration cup. After the titration process is completed, the waste liquid in the titration cup is discharged from the discharge pipe through the peristaltic pump five.

[0023] Furthermore, the liquid receiving cup and the liquid taking cup are connected by a hose with an inner diameter less than or equal to 2mm, and a liquid detection sensor is arranged outside the hose, and the liquid detection sensor can sense the liquid in the hose; and a timing module is also included, and the output end of the liquid sensing device is connected to the input end of the timing module. The inner diameter of the hose is less than or equal to 2mm, and it can effectively increase the suction time when absorbing a small amount of filtrate, thereby reducing the measurement error. In this scheme, a liquid detection sensor is arranged outside the hose to sense the liquid in the hose. The liquid detection sensor can use any existing sensing device that can sense liquid. When liquid flows through the hose, the liquid detection sensor senses the liquid and starts to send a signal to the timing module; when no liquid flows through the hose, the liquid detection sensor stops sending a signal to the timing module. The timing module starts timing when the signal is received and ends timing when the signal stops, so that the pumping time can be accurately measured. In this scheme, a hose with a very small inner diameter is used to extend the pumping time and reduce the timing error. By means of an external liquid detection sensor, the timing module is used to achieve accurate measurement of the pumping time, thereby assisting the automatic measurement of the mud filtration loss. The timing module in this solution can be implemented using an existing timing module.

[0024] Preferably, the liquid detection sensor is a capacitive sensor attached to the tube wall. The capacitive sensor has high sensitivity and can immediately sense when filtrate passes through the hose. The high sensitivity is conducive to further improving the timing accuracy of the present application.

[0025] Furthermore, liquid detection sensors are also provided on the connecting pipes between the liquid collection cup and the injection pump, and between the injection pump and the displacement mechanism, so as to detect whether there is liquid passing through the corresponding pipes, thereby providing the staff with a signal reference for the normal operation of the system, ensuring that the pipes are blocked or the corresponding peristaltic pumps fail in time.

[0026] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0027] 1. The automated system for drilling fluid water analysis and detection of the present invention solves the problem in the prior art that drilling fluid filtration loss detection can only be performed by manpower, realizes automatic access to the inner cup, significantly reduces manpower consumption, and improves the degree of automation.

[0028] 2. The automated system for drilling fluid water analysis and detection of the present invention has a high degree of automation, which overcomes the problem that after the filtration loss measurement component is used, the inner cup needs to be manually taken out and dumped and discarded. The inner cup is placed upside down with the open end facing down, and the used inner cups can be stacked in sequence, and after a certain number of stacks are reached, they can be manually uniformly recycled and processed. Therefore, the present application achieves the effect of improving the automated recycling of the inner cup after the filtration loss process is completed.

[0029] 3. The present invention is an automated system for drilling fluid water analysis and detection. The position switching between the injection pump and each workstation is achieved by a shifting mechanism. Through the action of the shifting mechanism, the output direction of the injection pump can be directed toward different workstations, so that the filtrate can be injected into different titration cups according to the set requirements. Each titration cup can perform titration detection of different ions through an existing titrator, thereby achieving the effect of rapid titration detection of different ions.

[0030] 4. The automated system for drilling fluid water analysis and detection of the present invention can achieve rapid flushing of the entire system pipeline by injecting deionized water into the system and then using a displacement mechanism to make the output end of the injection pump face the waste liquid discharge end, thereby solving the problem of only being able to clean manually in the prior art. The deionized water injection pipeline is used to inject deionized water after the titration is completed, thereby automatically cleaning the titration cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0032] Figure 1 It is a front view of the inner cup taking component part in a specific embodiment of the present invention;

[0033] Figure 2 It is a side view of the inner cup taking component part in a specific embodiment of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the inner cup taking component part in a specific embodiment of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the inner cup recovery component part in a specific embodiment of the present invention;

[0036] Figure 5 A side view of the inner cup recovery component part in a specific embodiment of the present invention;

[0037] Figure 6 It is a connection diagram of the filtrate detection component in a specific embodiment of the present invention.

[0038] Marks and corresponding parts names in the attached drawings:

[0039] 1- upright position, 2- clamping device, 3- pressure plate, 4- first lifting mechanism, 5- suction cup, 6- exhaust pipe, 7- swing arm, 8- second lifting mechanism, 9- guide rail, 10- grouting device, 11- inner cup pressurized plug, 12- lifting claw, 13- cup holder, 14- spring, 15- liquid outlet, 16- inner cup fixture, 17- first rotating mechanism, 18- second rotating mechanism, 19- mounting seat, 20- lifting assembly, 21- connecting plate, 22- sink, 23- inverted position, 24- middle Filter press cup, 25-liquid receiving cup, 251-liquid level sensor, 252-peristaltic pump three, 26-liquid collection cup, 261-pH detection sensor, 27-syringe pump, 28-waste liquid discharge terminal one, 29-titration cup, 30-peristaltic pump one, 31-three-way valve one, 32-three-way valve two, 33-peristaltic pump two, 331-waste liquid discharge terminal two, 34-titrator, 35-peristaltic pump four, 36-drain pipe, 37-peristaltic pump five, 38-agitator, 39-liquid detection sensor, 40-outer cup. DETAILED DESCRIPTION

[0040] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0041] Embodiment 1:

[0042] like Figures 1 to 6The automated system for drilling fluid water analysis and detection shown in the figure comprises an inner cup taking component, an inner cup recovery component, and a filtrate detection component; the inner cup taking component comprises a positive placement station 1 for positively overlapping inner cups, a cup taking mechanism for taking out inner cups one by one from the positive placement station 1, a clamping device 2 for clamping the inner cup taken out by the cup taking mechanism, a conveying mechanism for moving the clamping device 2, a grouting device 10 located on the conveying path of the conveying mechanism, and a pressurized plug 11 located on the conveying path of the conveying mechanism; the inner cup recovery component comprises an inner cup clamp 16 for taking the inner cup from the clamping device 2, a first rotating mechanism 17 for driving the inner cup clamp 16 to rotate along a horizontal axis, and a first rotating mechanism 18 for driving the inner cup clamp 16 to rotate along a horizontal axis. The inner cup clamp 16 includes a second rotating mechanism 18 for rotating along a vertical axis, and a lifting component 20 for driving the inner cup clamp 16 to rise and fall; it also includes an inverted station 23, and the inverted station 23 is used for the inner cup to be inverted and overlapped; the second rotating mechanism 18 can drive the inner cup clamp 16 to reach directly above the inverted station 23; the filtrate detection component includes a filter cup 24 for receiving the filtrate lost from the inner cup, a liquid receiving cup 25 connected to the filter cup 24 in sequence, a liquid taking cup 26, an injection pump 27, and a displacement mechanism, one station of the displacement mechanism is a waste liquid discharge terminal 28, and the remaining stations are connected to a titration cup 29; the injection pump 27 can output liquid to different stations through the displacement mechanism.

[0043] Embodiment 2:

[0044] like Figures 1 to 6 The automated system for drilling fluid water analysis and detection shown in the embodiment 1 is a square frame structure formed by three plates around the upright station 1. It also includes an inner cup pressing assembly facing the upright station 1, and the inner cup pressing assembly is used to press the inner cup below. The inner cup pressing assembly includes two pressing plates 3 that can be opened and closed, and the inner cup pressing assembly is driven by a first lifting mechanism 4 to lift and lower. The cup-taking mechanism includes a suction cup 5 with an opening facing downward, an air suction pipe 6 connected to the suction cup 5, a swing arm 7 for driving the air suction pipe 6 to rotate, and a second lifting mechanism 8 for driving the swing arm 7 to lift and lower. The conveying mechanism is a guide rail 9, and the clamping device 2 can move on the guide rail 9. It also includes a grouting device 10, and when the clamping device 2 moves on the guide rail 9, it can pass directly below the grouting device 10. It also includes an inner cup pressurizing plug 11, and when the clamping device 2 moves on the guide rail 9, it can pass directly below the inner cup pressurizing plug 11. The inner cup pressurizing plug 11 is clamped by a lifting claw 12 .

[0045] Preferably, a cup holder 13 is provided below the clamping device 2 , the cup holder 13 is connected to the clamping device 2 via a spring 14 , a liquid outlet 15 is provided at the bottom of the cup holder 13 , and an outer cup 40 is fixed on the cup holder 13 .

[0046] When this embodiment is working, the height is first raised by the second lifting mechanism to ensure that the bottom of the suction cup is higher than the highest position of the stacked inner cups, and then the swing arm is rotated to drive the suction cup and the suction pipe to move to the top of the upright position. The second lifting mechanism drives the suction cup to move downward, and the suction cup extends to the inside of the uppermost inner cup and abuts against the bottom of the inner cup. Then, the suction pipe is used to start suction, so that the suction cup adsorbs the uppermost inner cup, and then the second lifting mechanism drives the suction cup upward to lift the uppermost inner cup; after that, the swing arm rotates to rotate the inner cup to the top of the clamping device, and the second lifting mechanism drives downward again to place the inner cup on the clamping device 2, and the suction cup is depressurized. The clamping device 2 moves on the guide rail to the grouting device 10 to inject drilling fluid, and then continues to move to the bottom of the pressurized plug 11, which is sealed by the pressurized plug 11 to perform filtration loss detection. After the detection is completed, it continues to move to the inner cup fixture 16 through the guide rail, and the inner cup fixture 16 recovers the inner cup with the remaining drilling fluid; at the same time, the filtrate detection component titrates the obtained filtrate.

[0047] Embodiment 3:

[0048] like Figures 1 to 6 The automated system for drilling fluid water analysis and detection shown in the figure is based on any of the above embodiments, and the second rotating mechanism 18 drives the inner cup fixture 16, the first rotating mechanism 17, and the lifting assembly 20 to rotate synchronously. The second rotating mechanism 18 drives the mounting seat 19 to rotate, and the mounting seat 19 is provided with a connecting plate 21, the first rotating mechanism 17 is mounted on the connecting plate 21, and the output end of the first rotating mechanism 17 is connected to the inner cup fixture 16. The lifting assembly 20 is used to drive the connecting plate 21 to be lifted and lowered on the mounting seat 19. It also includes a water tank 22, and the second rotating mechanism 18 can drive the inner cup fixture 16 to pass over the water tank 22. It also includes an inverted position 23, which is used for the inner cup to be inverted and overlapped; the second rotating mechanism 18 can drive the inner cup fixture 16 to reach the top of the inverted position 23. It also includes a guide rail 9 and a clamping device 2 that can move on the guide rail 9; the guide rail 9 and the inverted position 23 are located on opposite sides of the inner cup fixture 16.

[0049] The specific working process of the inner cup recovery component in this embodiment is as follows:

[0050] After the filtration loss detection is completed, the clamping device 2 clamps the inner cup, and moves the inner cup containing the remaining drilling fluid to the position of the inner cup clamp 16 through the guide rail 9. The inner cup clamp 16 clamps the inner cup, and the clamping device 2 is released, and it is rotated 90° in the horizontal direction through the second rotating mechanism 18 to above the water tank 22; then the inner cup clamp is driven by the first rotating mechanism 17 to rotate 100°~110° in the vertical direction to tilt it and pour out the remaining drilling fluid, and then the second rotating mechanism is started to make it continue to rotate 90° in the horizontal direction to above the inverted position 23, and the first rotating mechanism 17 is continued to be started to drive the inner cup clamp 16 to continue to rotate in the vertical direction until the open end of the clamped inner cup faces downward, and the inner cup can be lowered by the lifting assembly.

[0051] Preferably, after the inner cup clamp clamps the inner cup, the inner cup clamp can also be driven upward by the lifting assembly, so that the inner cup can be stably lifted and then moved.

[0052] Embodiment 4:

[0053] like Figures 1 to 6 The automated system for drilling fluid water analysis and detection shown in the figure is based on any of the above embodiments, a liquid level sensor 251 is set in the liquid receiving cup 25, a pH detection sensor 261 is set in the liquid taking cup 26, and a peristaltic pump 1 30 is connected between the liquid receiving cup 25 and the liquid taking cup 26. A three-way valve 1 31 and a three-way valve 2 32 are connected between the liquid taking cup 26 and the injection pump 27 in sequence; the three-way valve 1 31 is connected to the liquid taking cup 26, the three-way valve 2 32, and the peristaltic pump 2 33; the three-way valve 2 32 is connected to the three-way valve 1 31, the injection pump 27, and the displacement mechanism. The output end of the peristaltic pump 2 33 is the waste liquid discharge end 2 331; and it also includes a peristaltic pump 3 252 for injecting deionized water into the liquid receiving cup 25. The displacement mechanism is a turntable or a linear guide. The titration cup 29 includes a calcium ion titration cup and a chloride ion titration cup. Each titration cup 29 is provided with a matching titrator 34, a reagent adding pipeline, and a deionized water injection pipeline; the reagent adding pipeline and the deionized water injection pipeline are both provided with a peristaltic pump 29 35. Each titration cup 29 is provided with a liquid discharge pipe 36, and a peristaltic pump 5 37 is provided on the liquid discharge pipe 36. A stirrer 38 is provided in each titration cup 29.

[0054] The liquid receiving cup 25 and the liquid taking cup 26 are connected by a hose with an inner diameter less than or equal to 2 mm. A liquid detection sensor 39 is arranged outside the hose, and the liquid detection sensor 39 can sense the liquid in the hose. It also includes a timing module, and the output end of the liquid sensing device 4 is connected to the input end of the timing module.

[0055] This solution senses the liquid in the hose by setting a liquid detection sensor on the outside of the hose. The liquid detection sensor can use any existing sensing device that can sense liquid. When liquid flows through the hose, the liquid detection sensor senses the liquid and starts sending signals to the timing module. When there is no more liquid flowing through the hose, the liquid detection sensor stops sending signals to the timing module. The timing module starts timing when it receives the signal and ends timing when the signal stops, so that the pumping time can be accurately measured. In this solution, a hose with a very small inner diameter is used to extend the pumping time and reduce the timing error. The external liquid detection sensor is used in conjunction with the timing module to achieve accurate measurement of the pumping time, thereby assisting in the automatic measurement of the mud loss.

[0056] Liquid detection sensors 39 are also provided on the connecting pipelines between the liquid collection cup 26 and the injection pump 27 and between the injection pump 27 and the displacement mechanism.

[0057] The process of filtrate detection in this embodiment is as follows:

[0058] First, the filter cup 24 drips liquid for 30 minutes, and the liquid is stored in the liquid receiving cup 25 with a capacity of 50ml. The liquid level sensor 251 detects the liquid level in the liquid receiving cup 25. If the filtrate overflows, an alarm is issued. When the titration test starts, the peristaltic pump 30 transports the filtrate to the liquid collection cup 26 with a capacity of 50ml. During the transportation process, the liquid detection sensor 39 between the liquid receiving cup 25 and the liquid collection cup 26 works. The liquid signal starts timing from no to present, and ends timing from the presence to no liquid signal. Thus, the total amount of filtrate can be calculated by the duration and displacement. Afterwards, the filtrate is injected into the titration cup 29 of each titration station in turn through the three-way valve 1 31 and the three-way valve 2 32 by the injection pump 27 through the displacement mechanism, and the titrator 34 corresponding to each titration cup 29 performs titration detection of the content of different ions. After the titration test is completed, deionized water is injected into the liquid receiving cup 25 by the peristaltic pump three 252, and the deionized water rinses the liquid receiving cup 25, and passes through the peristaltic pump one 30, the liquid collection cup 26, the three-way valve one 31, and the peristaltic pump two 33, and is discharged from the waste liquid discharge end two 331. The cleaning step here is repeated 3 times; in addition, the deionized water injection pipeline corresponding to each titration cup 29 injects deionized water into the corresponding titration cup 29 for rinsing, and after the stirrer 38 stirs and cleans, the peristaltic pump five 37 discharges the waste water from the respective discharge pipes 36, and the cleaning step here is repeated 4 times.

[0059] Preferably, the titration process of the calcium ion titration cup in this embodiment is as follows: the injection pump 27 adds 1 ml of filtrate therein, and two reagent addition pipelines respectively add 10 ml of NaOH solution and 1 ml of masking agent therein through two peristaltic pumps, and 60 ml of deionized water is injected through the corresponding deionized water injection pipeline, and then the corresponding titrator 34 drips EDTA solution through the built-in titration injection pump for titration detection.

[0060] Preferably, the titration process of the chloride ion titration cup in this embodiment is as follows: the injection pump 27 adds 1 ml of filtrate therein, a reagent addition pipeline adds 10 ml of masking agent (such as dilute nitric acid solution) therein through a peristaltic pump, and 60 ml of deionized water is injected through the corresponding deionized water injection pipeline, and then the corresponding titrator 34 drips the silver nitrate solution through the built-in titration injection pump for titration detection.

[0061] Of course, in addition to the valves and pipelines disclosed in this embodiment, those skilled in the art can add various required pipelines and valves based on this embodiment according to actual needs when implementing the filtrate detection component.

[0062] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated system for drilling fluid water analysis and detection, characterized in that: It includes an inner cup taking component, an inner cup recovery component, and a filtrate detection component; The inner cup taking component comprises a placing station (1) for positively overlapping inner cups, a cup taking mechanism for taking out inner cups one by one from the placing station (1), a clamping device (2) for clamping the inner cups taken out by the cup taking mechanism, a conveying mechanism for moving the clamping device (2), a grouting device (10) located on the conveying path of the conveying mechanism, and an inner cup pressurizing plug (11) located on the conveying path of the conveying mechanism; a cup holder (13) is arranged below the clamping device (2), an outer cup (40) matching the inner cup is arranged on the cup holder (13), the cup holder (13) is connected to the clamping device (2) by a spring (14), and a liquid outlet (15) is arranged at the bottom of the cup holder (13); The inner cup recovery assembly comprises an inner cup clamp (16) for receiving the inner cup from the clamping device (2), a first rotating mechanism (17) for driving the inner cup clamp (16) to rotate along a horizontal axis, a second rotating mechanism (18) for driving the inner cup clamp (16) to rotate along a vertical axis, and a lifting assembly (20) for driving the inner cup clamp (16) to rise and fall; it also comprises an inverted position (23), wherein the inverted position (23) is used for inverting and overlapping the inner cup; the second rotating mechanism (18) can drive the inner cup clamp (16) to reach the top of the inverted position (23); The filtrate detection assembly comprises a filter cup (24) for holding the filtrate lost from the inner cup, a liquid receiving cup (25) connected to the filter cup (24) in sequence, a liquid taking cup (26), an injection pump (27), and a position changing mechanism, wherein one station of the position changing mechanism is a waste liquid discharge end 1 (28), and the other stations are all connected to a titration cup (29); the filter cup (24) is placed below the liquid outlet (15); and the injection pump (27) can output liquid to different stations through the position changing mechanism.

2. The automated system for drilling fluid water analysis and detection according to claim 1, characterized in that: The upright placement station (1) is a square frame with an open top surface and one side surface; it also includes an inner cup pressing assembly facing the upright placement station (1), and the inner cup pressing assembly is used to press the inner cup below; the inner cup pressing assembly includes two opening and closing pressure plates (3), and the inner cup pressing assembly is driven by a first lifting mechanism (4) to be lifted and lowered.

3. The automated system for drilling fluid water analysis and detection according to claim 1, characterized in that: The cup-taking mechanism comprises a suction cup (5) with an opening facing downward, an air suction pipe (6) connected to the suction cup (5), a swing arm (7) for driving the air suction pipe (6) to rotate, and a second lifting mechanism (8) for driving the swing arm (7) to rise and fall.

4. The automated system for drilling fluid water analysis and detection according to claim 1, characterized in that: The inner cup clamp (16) includes two clamping plates that can be opened and closed; the second rotating mechanism (18) drives the inner cup clamp (16), the first rotating mechanism (17), and the lifting assembly (20) to rotate synchronously; and also includes a water tank (22), and the second rotating mechanism (18) can drive the inner cup clamp (16) to pass over the water tank (22).

5. The automated system for drilling fluid water analysis and detection according to claim 4, characterized in that: The second rotating mechanism (18) drives the mounting seat (19) to rotate; a connecting plate (21) is provided on the mounting seat (19); the first rotating mechanism (17) is mounted on the connecting plate (21); an output end of the first rotating mechanism (17) is connected to the inner cup clamp (16); and the lifting assembly (20) is used to drive the connecting plate (21) to be lifted and lowered on the mounting seat (19).

6. The automated system for drilling fluid water analysis and detection according to claim 1, characterized in that: A liquid level sensor (251) is arranged in the liquid receiving cup (25), a pH detection sensor (261) is arranged in the liquid taking cup (26), a peristaltic pump 1 (30) is connected between the liquid receiving cup (25) and the liquid taking cup (26); a three-way valve 1 (31) and a three-way valve 2 (32) are connected in sequence between the liquid taking cup (26) and the injection pump (27); the three-way valve 1 (31) is connected to the liquid taking cup (26), the three-way valve 2 (32), and the peristaltic pump 2 (33); the three-way valve 2 (32) is connected to the three-way valve 1 (31), the injection pump (27), and the displacement mechanism; the output end of the peristaltic pump 2 (33) is a waste liquid discharge end 2 (331); and a peristaltic pump 3 (252) is also included for injecting deionized water into the liquid receiving cup (25).

7. The automated system for drilling fluid water analysis and detection according to claim 1, characterized in that: Each titration cup (29) is provided with a matching titrator (34), a reagent adding pipeline, and a deionized water injection pipeline; a peristaltic pump four (35) is provided on the reagent adding pipeline and the deionized water injection pipeline; each titration cup (29) is provided with a liquid discharge pipe (36), and a peristaltic pump five (37) is provided on the liquid discharge pipe (36); and a stirrer (38) is provided in each titration cup (29).

8. The automated system for drilling fluid water analysis and detection according to claim 1, characterized in that: The liquid receiving cup (25) and the liquid taking cup (26) are connected via a hose with an inner diameter less than or equal to 2 mm, and a liquid detection sensor (39) is arranged outside the hose, and the liquid detection sensor (39) can sense the liquid in the hose; a timing module is also included, and the output end of the liquid detection sensor (39) is connected to the input end of the timing module.

9. The automated system for drilling fluid water analysis and detection according to claim 8, characterized in that: Liquid detection sensors (39) are also provided on the connecting pipelines between the liquid collection cup (26) and the injection pump (27), and between the injection pump (27) and the displacement mechanism.

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