Completion fluid viscosity detection device and detection method

Abstract

The present application provides a completion fluid viscosity detection device and detection method, which relate to the field of completion fluid viscosity detection. A completion fluid viscosity detection device comprises: a base frame, the top of the base frame is fixedly connected to a top frame, and the outer side of the top frame is connected to a sealing cylinder; the top frame is fixedly connected to a sealing cover on the side close to the sealing cylinder, and a funnel frame is provided at the bottom of the sealing cover, and a mixing component is provided in the inner cavity of the top frame; a supply component is provided in the inner cavity of the sealing cylinder, and an auxiliary component is provided on the top of the top frame. The completion fluid viscosity detection device and detection method, during the completion fluid viscosity detection, through the coordination of the mixing component, the supply component, the auxiliary component and the rotating component, adopts a combination of dynamic and static titration, simulated high temperature and high pressure environment of drilling and on-site mixing, to achieve accurate detection effect of completion fluid viscosity under the influence of different factors, and at the same time, it is not possible to automatically flush and clean the completion fluid viscosity detection container after the detection is completed.

Description

Technical Field

[0001] The present application relates to the technical field of completion fluid viscosity detection, and in particular to a completion fluid viscosity detection device and detection method. Background Art

[0002] The purpose of oil and gas well completion is to maximize the communication channels between formations, so as to ensure the highest yield of oil and gas wells. The damage to the formation during drilling is mainly manifested in the invasion of drilling fluid into the formation, the infiltration of mud filtrate causes the clay components in the production layer to swell and form a water lock effect; the chemical treatment agent in the filtrate produces colloids or precipitates with the mineral components of the production layer; the invasion of clay in the mud, all of which will block the pores of the production layer and affect the yield. Therefore, before drilling into a low-pressure or certain unknown production layer, the well washing fluid must be replaced and a special completion fluid that protects the production layer must be used. The completion fluid is any liquid that contacts the production layer due to operational needs from the drilling of the production layer to the formal production of a new well. Viscosity is one of the important detection indicators of the completion fluid.

[0003] In the prior art (the patent application with announcement number CN207689315U and patent name being a drilling fluid viscosity measuring device), the sensor and the timer are both electrically connected to the controller, the liquid sensor is used to detect the flow of liquid in the Marsh funnel, and the controller is used to start the timer for timing when the liquid sensor detects the flow of liquid in the Marsh funnel. In the process of implementing this technical solution, it is found that the prior art has at least the following problems.

[0004] At present, most of the testing methods used for completion fluid viscosity only perform a single viscosity test. They cannot use a combination of dynamic and static titration, simulated high temperature and high pressure drilling environment, and on-site preparation to achieve accurate testing of completion fluid viscosity under the influence of different factors. At the same time, they cannot automatically flush and clean the completion fluid viscosity test container after the test is completed, and manual cleaning is required, which is more troublesome. Summary of the invention

[0005] The present application aims to at least solve the technical problems in the prior art that the viscosity of completion fluid under the influence of different factors cannot be accurately detected by combining dynamic and static titration, simulated high temperature and high pressure environment of drilling, and on-site preparation, and the completion fluid viscosity detection container cannot be automatically flushed and cleaned after the detection is completed. To this end, the present application proposes a completion fluid viscosity detection device and detection method.

[0006] A completion fluid viscosity detection device according to an embodiment of the present application includes: a bottom frame, a top frame is fixedly connected to the top of the bottom frame, and a sealing cylinder is connected to the outside of the top frame; A sealing cover is fixedly connected to one side of the top frame close to the sealing cylinder, a funnel frame is arranged at the bottom of the sealing cover, and a mixing component is arranged in the inner cavity of the top frame; The inner cavity of the sealing cylinder is provided with a supply component, and the top of the top frame is provided with an auxiliary component.

[0007] Preferably, the mixing component includes a double-headed motor, which is fixed in the inner cavity of the top frame, and an output shaft of the double-headed motor is embedded with a first electric push rod, the piston rod of the first electric push rod is fixedly connected to a driving bevel gear, and a bevel gear frame is provided on the side of the driving bevel gear away from the double-headed motor, the other end of the bevel gear frame is meshed with a driven bevel gear, and the inner cavity of the driven bevel gear is fixedly connected to a hollow tube that rotatably cooperates with a sealing cover, the bottom end of the hollow tube is connected to a crushing frame, and one side of the crushing frame is fixedly connected to a scraper frame used in conjunction with the funnel frame.

[0008] Preferably, the supply assembly includes a driving synchronous wheel, which is fixed on the other output shaft of the double-headed motor, and the side of the driving synchronous wheel away from the double-headed motor is connected to a driven synchronous wheel through a synchronous belt transmission, the inner cavity of the driven synchronous wheel is fixedly connected to a concave rod used in conjunction with the top frame, and the center of the concave rod is rotatably connected to a rotating sleeve, a connecting rod is fixedly connected to the rotating sleeve, and the other end of the connecting rod is hinged with a piston that slides with a sealing cylinder, the exhaust port of the sealing cylinder is connected to a supply pipe, and the top end of the supply pipe is connected to a booster tank that is fixedly matched with the top frame.

[0009] Preferably, the auxiliary component includes a Y-shaped tube, the Y-shaped tube is connected to the exhaust port of the boosting tank, and the end of the Y-shaped tube away from the boosting tank is connected to a five-way valve, the inner end of the five-way valve is connected to a heating pipe, and the inner end of the heating pipe is connected to an electric heater fixedly matched with the top frame, the top of the top frame is fixedly connected to a clean water cylinder, and the drain outlet of the clean water cylinder is connected to a water supply pipe used in conjunction with the five-way valve, a control valve is provided on the water supply pipe, and the inner cavity of the crushing frame is provided with a boosting cavity used in conjunction with the hollow tube, and the crushing frame is provided with injection holes all around.

[0010] Preferably, the pulverizing frame adopts a spiral design, and a stirring blade is fixedly connected to a side of the scraper frame close to the pulverizing frame, and the stirring blade and the pulverizing frame are distributed in a staggered state.

[0011] Preferably, the driving synchronous wheel is transmission-connected to a side of the synchronous belt close to a positioning wheel that rotates with the top frame, and an exhaust valve is provided on the supply pipe, and an air inlet valve is provided at the air inlet of the sealing cylinder.

[0012] Preferably, the bottom end of the funnel stand is connected to a titration head, and an electric control valve and a viscosity sensor are respectively provided on the titration head.

[0013] Preferably, a feeding port is provided at the top of the outer side of the funnel frame, and a plugging head is threadedly connected to the feeding port.

[0014] Preferably, a temperature sensor used in conjunction with the funnel frame is embedded on one side of the blocking cover, and a weighing sensor is embedded on the side of the bottom frame away from the top frame, and a collecting pot used in conjunction with the titration head is placed on the weighing sensor.

[0015] A completion fluid viscosity detection method, according to the completion fluid viscosity detection device, comprises the following steps: Step 1: First, three completion fluid samples are placed in a funnel rack blocked by three sets of plugging covers, and then three sets of electric control valves are controlled to open. Under the action of gravity, the three completion fluid samples in the three funnel racks are titrated through three sets of titration heads and fall into three collection pots. The three viscosity sensors detect the viscosity of the three completion fluid samples passing through the three titration head areas in real time, and the three weighing sensors weigh the three completion fluid samples collected in the three collection pots. If the three viscosity sensors detect that the viscosity of the three completion fluid samples is low, the plugging heads on the three feeding ports are opened, and thickening liquid is added to the three funnel racks. If the three viscosity sensors detect that the viscosity of the three completion fluid samples is high, diluent is added to the three funnel racks. If the three viscosity sensors detect that the viscosity of the three completion fluid samples is normal, the static viscosity detection of the three completion fluid samples is completed. Step 2: If the viscosity of the three completion fluid samples is low or high, and after thickening liquid or diluent is added into the three groups of funnel frames accordingly, the first electric push rod is first controlled to start and drive the driving bevel gear to move up to the meshing part of one end of the three groups of bevel gear frames, and then the double-headed motor is controlled to start and drive the three groups of bevel gear frames to rotate synchronously through the driving bevel gear in place, and the other ends of the three groups of bevel gear frames drive the three groups of driven bevel gears to rotate accordingly, and the three groups of driven bevel gears drive the crushing frames on the three groups of hollow tubes to rotate synchronously in the three groups of funnel frames, and the three groups of crushing frames in the rotating state evenly stir the thickening liquid or diluent added into the three groups of funnel frames with the original three completion fluid samples, and at the same time, the three groups of scraping bars and stirring blades that rotate synchronously with the crushing frames scrape off the viscous substances attached to the inner walls of the three groups of funnel frames, and also assist in stirring the thickening liquid or diluent added into the three groups of funnel frames; Step 3: After the thickening liquid or the diluent is mixed and prepared with the three original completion fluid samples, the double-headed motor is first controlled to pause, and then the first electric push rod is controlled to close and drive the driving bevel gear to move down and disengage from the meshing part of one end of the three sets of bevel gear racks to the initial position, and then the three completion fluid samples whose viscosity has been prepared are subjected to static viscosity testing in the same step. During the static viscosity testing of the three completion fluid samples, the driving synchronous wheel is driven to rotate by the other output shaft of the double-headed motor. At this time, the driving bevel gear on the first electric push rod is in an idling state. Under the tensioning cooperation of the three sets of positioning wheels to the synchronous belt, the driving synchronous wheel drives the concave rods on the three sets of driven synchronous wheels to rotate synchronously through the synchronous belt, and the three sets of concave rods drive the pistons on the three sets of connecting rods through the three sets of rotating sleeves to perform reciprocating work in the three sets of sealing cylinders. Step 4, when the three groups of pistons are in the return air intake state in the three groups of sealing cylinders, the exhaust valves on the three groups of supply pipes are controlled to be closed, and the intake valves on the three groups of air inlets are controlled to be opened, so that the outside air enters the three groups of sealing cylinders under the suction generated by the three groups of pistons in the return state, and when the three groups of pistons are in the process exhaust state in the three groups of sealing cylinders, on the contrary, the three groups of pistons pressurize the air entering the three groups of sealing cylinders through the three groups of supply pipes and supply it into the three groups of boosting tanks for pressurized temporary storage, and then, the pressurized gas in the three groups of boosting tanks is supplied into the three groups of five-way valves through the three groups of Y-type pipes, and the three groups of electric heaters are controlled to be turned on in advance, and the heat source generated by the three groups of electric heaters is unidirectionally supplied into the three groups of five-way valves through the three groups of heating pipes and merges with the pressurized gas, and a pressurized heat source is formed in the three groups of five-way valves; Step 5. Then, the pressurized heat source in the three groups of five-way valves passes through the three groups of hollow tubes to reach the pressurized cavity of the three groups of crushing racks, and then is evenly and comprehensively sprayed into the three completion fluid samples in the three groups of funnel racks through the injection holes on the three groups of crushing racks. The temperature in the three groups of funnel racks is monitored in real time by the temperature sensors on the three groups of plugging covers, and the high-temperature pressurized environment is simulated by heating the three groups of funnel racks. Then, the same as step 1 is repeated, and the static viscosity of the three completion fluid samples after the temperature and pressure are increased is observed. After the three completion fluid samples complete the static viscosity test After the measurement operation is completed and all the water drips into the three groups of collecting pots, the three groups of funnel racks are in an empty barrel state. At this time, the three groups of electric heaters are turned off to stop the heat source supply, and the water in the clean water cylinder is supplied to the three groups of five-way valves through the three groups of water supply pipes under the influence of gravity to merge with the pressurized gas to form a pressurized water source. Similarly, the pressurized water source is sprayed from the three groups of hollow tubes and the pressurized cavities of the three groups of crushing racks through the injection holes to the three groups of funnel racks, and the inside of the three groups of funnel racks is pressurized and flushed. The waste water generated by the flushing flows into the prepared collection box through the three groups of titration heads.

[0016] The beneficial effect of the present application is that during the viscosity test of the completion fluid, if the viscosity of the completion fluid is low or high, when thickening liquid and diluent are added accordingly, the double-headed motor first provides a unified driving source, and the first electric push rod adjusts the meshing stroke between the driving bevel gear and the bevel gear rack, and then, through the meshing transmission cooperation of the driving bevel gear, the bevel gear rack and the driven bevel gear, the three groups of driven bevel gears drive the crushing racks and the scraping racks on the three groups of hollow tubes to stir and mix the thickening liquid and diluent added to the three completion fluid samples on site, and under the premise of static titration viscosity test, the on-site mixing effect is achieved for the three completion fluid samples with inconsistent viscosities, and then, the driving The transmission cooperation between the synchronous wheel and the driven synchronous wheel, the three groups of driven synchronous wheels drive the pistons on the three groups of connecting rods to perform reciprocating work in the three groups of sealing cylinders through the rotating sleeves on the three groups of concave rods, so as to provide the boost pressure supply for the follow-up, and the pressurized gas generated in the three groups of sealing cylinders is supplied to the three groups of booster tanks through the three groups of supply pipes for standby use, and then, the pressurized gas in the three groups of booster tanks is supplied to the three groups of five-way valves through the three groups of Y-tubes to simulate the high-pressure environment under drilling, and the heat source is transported by three groups of electric heaters and heating pipes to simulate the high-temperature environment under drilling, and finally, the completion fluid viscosity detection container is cleaned and flushed with high pressure by the clean water cylinder, water supply pipe, booster cavity and injection hole, which saves time and effort.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of a completion fluid viscosity detection device according to an embodiment of the present application; Figure 2 is a partial cross-sectional view of the three-dimensional structure of a completion fluid viscosity detection device according to an embodiment of the present application; Figure 3 It is a partial bottom view of the three-dimensional structure of a completion fluid viscosity detection device according to an embodiment of the present application; Figure 4 It is a front cross-sectional view of the sealing cover, the funnel frame and the mixing component structure according to an embodiment of the present application; Figure 5 is a front view of the structure of the deployment component according to an embodiment of the present application; Figure 6is a partial bottom view of the deployment assembly structure according to an embodiment of the present application; Figure 7 is a partial side view of the structure of the mixing assembly according to an embodiment of the present application; Figure 8 is a front cross-sectional view of the top frame, sealing cylinder and supply assembly structure according to an embodiment of the present application; Fig. 9 is a partial bottom view of the supply assembly structure according to an embodiment of the present application; Fig.10 It is a partial front view of the structure of the mixing component, the supply component and the auxiliary component according to the embodiment of the present application; Fig.11 is a partial bottom view of the auxiliary component structure according to an embodiment of the present application; Fig.12 is a partial side view of the structure of the mixing component, the supply component and the auxiliary component according to an embodiment of the present application; Fig.13 is a cross-sectional view of the hollow tube and the crushing frame structure according to an embodiment of the present application; Fig.14 is a front view of a double-headed motor structure according to an embodiment of the present application; Fig.15 is a side cross-sectional view of the sealing cover, the funnel frame and the rotating assembly structure according to an embodiment of the present application; Fig.16 is a partial top view of the rotating assembly structure according to an embodiment of the present application; Fig.17 is a cross-sectional exploded view of the blocking cover and the funnel frame structure according to an embodiment of the present application; Fig.18 It is a partial side view of the three-dimensional structure of a completion fluid viscosity detection device according to an embodiment of the present application.

[0020] Icons: 1. Base frame; 2. Top frame; 3. Sealing cylinder; 4. Sealing cover; 5. Funnel frame; 6. Dispensing assembly; 61. Double-headed motor; 62. First electric push rod; 63. Driving bevel gear; 64. Bevel gear frame; 65. Driven bevel gear; 66. Hollow tube; 67. Crushing frame; 68. Scraping bar frame; 7. Supply assembly; 71. Driving synchronous wheel; 72. Driven synchronous wheel; 73. Concave rod; 74. Rotating sleeve; 75. Connecting rod; 76. Piston; 77. Supply pipe; 78. Booster tank; 8. Auxiliary assembly; 81. Y-type tube; 82. Five-way valve; 83, electric heater; 84, heating pipe; 85, clean water cylinder; 86, water supply pipe; 87, pressurized cavity; 88, injection hole; 9, rotating assembly; 91, annular slide rail; 92, annular end; 93, connecting end; 94, rotating end; 95, second electric push rod; 96, driving circular gear; 97, driven convex gear ring; 10, stirring blade; 11, positioning wheel; 12, titration head; 13, electric control valve; 14, viscosity sensor; 15, collecting pot; 16, feeding port; 17, temperature sensor; 18, weighing sensor. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0022] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] like Figure 1-Figure 18 As shown, a completion fluid viscosity detection device according to an embodiment of the present application includes: a bottom frame 1, a top frame 2 is fixedly connected to the top of the bottom frame 1, and a sealing cylinder 3 is connected to the outside of the top frame 2; A plugging cover 4 is fixedly connected to one side of the top frame 2 close to the sealing cylinder 3, and a funnel frame 5 is arranged at the bottom of the plugging cover 4, the bottom end of the funnel frame 5 is connected to a titration head 12, and the titration head 12 is respectively provided with an electric control valve 13 and a viscosity sensor 14, which is beneficial to the viscosity titration detection operation of the completion fluid, a feeding port 16 is provided at the top of the outer side of the funnel frame 5, and a plugging head is threadedly connected to the feeding port 16, which is convenient for adding thickening liquid or diluent into the funnel frame 5, and the inner cavity of the top frame 2 is provided with a mixing component 6 used in conjunction with the funnel frame 5, which is used to mix and blend the thickening liquid and diluent added to the three completion fluid samples on site, and on the premise of static titration viscosity detection, the on-site mixing effect is achieved for the three completion fluid samples with inconsistent viscosities; A temperature sensor 17 used in conjunction with the funnel frame 5 is embedded on one side of the plugging cover 4 to monitor the temperature in the funnel frame 5 in real time, and a weighing sensor 18 is embedded on the side of the bottom frame 1 away from the top frame 2, and a collecting pot 15 used in conjunction with the titration head 12 is placed on the weighing sensor 18 to collect completion fluid samples titrated for viscosity detection and weigh them to compare weight changes before and after. A supply component 7 is provided in the inner cavity of the sealing cylinder 3, and an auxiliary component 8 used in conjunction with the supply component 7 and the funnel frame 5 is provided on the top of the top frame 2 to simulate the high temperature and high pressure environment under drilling, perform multi-factor detection of completion fluid viscosity, improve the comprehensiveness of its viscosity detection, and also perform high-pressure flushing and cleaning of the completion fluid viscosity detection container, saving time and effort.

[0029] like Figures 4 to 14 As shown, the deployment component 6 includes a double-headed motor 61, which is fixed in the inner cavity of the top frame 2, and is provided with a unified driving source by the double-headed motor 61, and an output shaft of the double-headed motor 61 is embedded with a first electric push rod 62, and the piston rod of the first electric push rod 62 is fixedly connected with a driving bevel gear 63, and a bevel gear frame 64 is provided on the side of the driving bevel gear 63 away from the double-headed motor 61, and the first electric push rod 62 is used to adjust the meshing stroke between the driving bevel gear 63 and the bevel gear frame 64, and the other end of the bevel gear frame 64 is meshed with a driven bevel gear 65, and then through the driving bevel gear 63, The bevel gear rack 64 and the driven bevel gear 65 are meshed and driven, and the inner cavity of the driven bevel gear 65 is fixedly connected with a hollow tube 66 that rotates with the plugging cover 4. The bottom end of the hollow tube 66 is connected with a crushing rack 67, and one side of the crushing rack 67 is fixedly connected with a scraper rack 68 used in conjunction with the funnel rack 5. The three groups of driven bevel gears 65 drive the crushing racks 67 and the scraper racks 68 on the three groups of hollow tubes 66 to stir and mix the thickening liquid and the diluent added to the three completion fluid samples on site, and under the premise of static titration viscosity detection, the three completion fluid samples with inconsistent viscosities can achieve on-site mixing effects; The crushing frame 67 adopts a spiral design, which is conducive to the crushing frame 67 to evenly crush the added thickening liquid or diluent and the original three completion fluid samples, and the scraper frame 68 is fixedly connected to the side close to the crushing frame 67 with a stirring blade 10, and the stirring blade 10 and the crushing frame 67 are distributed in a staggered state to assist in stirring the added thickening liquid or diluent and the original three completion fluid samples.

[0030] The supply assembly 7 includes a driving synchronous wheel 71, which is fixed on the other output shaft of the double-headed motor 61, and the side of the driving synchronous wheel 71 away from the double-headed motor 61 is connected to a driven synchronous wheel 72 through a synchronous belt transmission. The inner cavity of the driven synchronous wheel 72 is fixedly connected to a concave rod 73 used in conjunction with the top frame 2 by the transmission cooperation between the driving synchronous wheel 71 and the driven synchronous wheel 72, and the center of the concave rod 73 is rotatably connected to a rotating sleeve 74, and the rotating sleeve 74 is fixedly connected to a connecting rod 75, and the connecting rod The other end of 75 is hinged with a piston 76 that is slidably matched with the sealing cylinder 3. The three sets of driven synchronous wheels 72 drive the pistons 76 on the three sets of connecting rods 75 to reciprocate in the three sets of sealing cylinders 3 through the rotating sleeves 74 on the three sets of concave rods 73 to provide a boost pressure supply for the subsequent period. The exhaust port of the sealing cylinder 3 is connected with a supply pipe 77, and the top of the supply pipe 77 is connected with a boost tank 78 that is fixedly matched with the top frame 2. The boost gas generated in the three sets of sealing cylinders 3 is supplied to the three sets of boost tanks 78 through the three sets of supply pipes 77 for standby use. The driving synchronous wheel 71 is transmission-connected to one side of the synchronous belt close to a positioning wheel 11 which rotates with the top frame 2, and serves as a transmission limiter for the synchronous belt between the driving synchronous wheel 71 and the driven synchronous wheel 72, so as to prevent the driving synchronous wheel 71 and the driven synchronous wheel 72 from idling and slipping on the synchronous belt. An exhaust valve is provided on the supply pipe 77, and an air inlet valve is provided at the air inlet of the sealing cylinder 3, which is beneficial to the air intake and exhaust work of the sealing cylinder 3.

[0031] The auxiliary component 8 includes a Y-shaped tube 81, which is connected to the exhaust port of the boosting tank 78, and one end of the Y-shaped tube 81 away from the boosting tank 78 is connected to a five-way valve 82. The pressurized gas in the three groups of boosting tanks 78 is supplied to the three groups of five-way valves 82 through the three groups of Y-shaped tubes 81 to simulate the high-pressure environment under drilling. The inner end of the five-way valve 82 is connected to a heating pipe 84, and the inner end of the heating pipe 84 is connected to an electric heater 83 fixedly matched with the top frame 2. The three groups of electric heaters 83 and the heating pipe 84 are used to transport heat sources. To simulate the high temperature environment under drilling, a clean water cylinder 85 is fixedly connected to the top of the top frame 2, and the drainage port of the clean water cylinder 85 is connected to a water supply pipe 86 used in conjunction with the five-way valve 82, a control valve is arranged on the water supply pipe 86, and the inner cavity of the crushing frame 67 is provided with a pressurizing cavity 87 used in conjunction with the hollow tube 66, and injection holes 88 are arranged around the crushing frame 67. The clean water cylinder 85, the water supply pipe 86, the pressurizing cavity 87 and the injection holes 88 are used to perform high-pressure flushing and cleaning of the completion fluid viscosity detection container, which saves time and effort.

[0032] like Figures 15 to 17As shown in the figure, during the viscosity detection of the completion fluid sample, the static viscosity detection method is mostly used. Due to the influence of the pressure and airflow in the drilling well, it is impossible to simulate the dynamic environment to perform multi-factor detection operations on the viscosity of the completion fluid, resulting in the completion fluid viscosity detection result being inaccurate and one-sided. A rotating component 9 is provided on the funnel frame 5, and the rotating component 9 includes an annular slide rail 91. The annular slide rail 91 is arranged in the inner cavity of the plugging cover 4 close to the funnel frame 5, and the top of the funnel frame 5 is integrally formed with an annular end 92 that rotates with the annular slide rail 91. Since the three groups of plugging covers 4 are in a fixed state, the three groups of plugging covers 4 are rotated by the three The annular slide rail 91 and the annular end 92 provide rotational support for the three groups of funnel frames 5, simulating a rotational dynamic environment for the completion fluid samples in the three groups of funnel frames 5. The bottom end of the funnel frame 5 is connected with a connecting end 93, and the outer end of the connecting end 93 is rotatably connected with a rotating end 94 that is connected and matched with the five-way valve 82. The connecting end 93 and the rotating end 94 are not only rotationally connected but also in an intercommunication state. When the three groups of funnel frames 5 rotate, the three groups of connecting ends 93 are also driven to rotate in the rotating ends 94 on the three groups of five-way valves 82, which plays a role in rotational connection for the three groups of funnel frames 5. Another output shaft of the double-headed motor 61 is embedded with a second electric push rod 95, and the piston rod of the second electric push rod 95 is fixedly connected to a driving circular gear 96, and a driven convex gear ring 97 meshing with the driving circular gear 96 is fixedly connected to the funnel frame 5. The second electric push rod 95 first adjusts the meshing stroke between the driving circular gear 96 and the driven convex gear ring 97, and then the other output shaft of the double-headed motor 61 drives the three groups of funnel frames 5 in the three groups of driven convex gear rings 97 to rotate through the driving circular gear 96 in place, thereby simulating the detection effect of the completion fluid viscosity in the three groups of funnel frames 5 under a rotating dynamic environment.

[0033] A completion fluid viscosity detection method, based on a completion fluid viscosity detection device, comprises the following steps: Step 1: First, three completion fluid samples are placed in the funnel rack 5 which is blocked by three sets of blocking caps 4, and then the three sets of electric control valves 13 are controlled to open. Under the action of gravity, the three completion fluid samples in the three funnel racks 5 are titrated by the three sets of burette heads 12 and fall into the three collection pots 15. The three viscosity sensors 14 detect the viscosity of the three completion fluid samples passing through the three burette heads 12 in real time, and the three weighing sensors 18 detect the viscosity of the three completion fluid samples collected in the three collection pots 15. The three completion fluid samples are weighed. If the three viscosity sensors 14 detect that the viscosity of the three completion fluid samples is low, the plugging heads on the three feeding ports 16 are opened, and thickening liquid is added to the three funnel racks 5. If the three viscosity sensors 14 detect that the viscosity of the three completion fluid samples is high, diluent is added to the three funnel racks 5. If the three viscosity sensors 14 detect that the viscosity of the three completion fluid samples is normal, the static viscosity detection of the three completion fluid samples is completed. Step 2: If the viscosity of the three completion fluid samples is low or high, and thickening liquid or diluent is added to the three groups of funnel racks 5 accordingly, first control the first electric push rod 62 to start and drive the driving bevel gear 63 to move up to the meshing part of one end of the three groups of bevel gear racks 64, then control the double-headed motor 61 to start and drive the three groups of bevel gear racks 64 to rotate synchronously through the driving bevel gear 63 in place, and the other end of the three groups of bevel gear racks 64 drives the three groups of driven bevel gears 65 to rotate accordingly, and the three groups of driven bevel gears 65 are rotated accordingly. The movable bevel gear 65 drives the crushing racks 67 on the three sets of hollow tubes 66 to rotate synchronously in the three sets of funnel racks 5. The three sets of crushing racks 67 in the rotating state evenly mix the thickening liquid or diluent added to the three sets of funnel racks 5 with the original three completion fluid samples. At the same time, the three sets of scraping bar racks 68 and stirring blades 10 that rotate synchronously with the crushing racks 67 scrape off the viscous substances attached to the inner walls of the three sets of funnel racks 5, and also assist in stirring the thickening liquid or diluent added to the three sets of funnel racks 5. Step 3, after the thickening liquid or diluent is mixed and prepared with the original three completion fluid samples, the double-headed motor 61 is first controlled to pause, and then the first electric push rod 62 is controlled to close and drive the driving bevel gear 63 to move down and disengage from the meshing part of one end of the three-group bevel gear frame 64 to the initial position, and then the three completion fluid samples whose viscosity has been prepared are subjected to static viscosity testing in the same step. During the static viscosity testing of the three completion fluid samples, the driving synchronous wheel 71 is driven to rotate by the other output shaft of the double-headed motor 61. At this time, the driving bevel gear 63 on the first electric push rod 62 is in an idling state. Under the tensioning cooperation of the three-group positioning wheel 11 on the synchronous belt, the driving synchronous wheel 71 drives the concave rod 73 on the three-group driven synchronous wheel 72 to rotate synchronously through the synchronous belt, and the three-group concave rod 73 drives the piston 76 on the three-group connecting rod 75 through the three-group rotating sleeve 74 to perform reciprocating work in the three-group sealing cylinder 3. Step 4, when the three groups of pistons 76 are in the return air intake state in the three groups of sealing cylinders 3, the exhaust valves on the three groups of supply pipes 77 are controlled to be closed, and the intake valves on the three groups of air inlets are controlled to be opened, so that the outside air enters the three groups of sealing cylinders 3 under the suction force generated by the three groups of pistons 76 in the return state. When the three groups of pistons 76 are in the process exhaust state in the three groups of sealing cylinders 3, on the contrary, the three groups of pistons 76 pressurize the air entering the three groups of sealing cylinders 3 through the three groups of supply pipes 77 and supply it into the three groups of boosting tanks 78 for pressurized temporary storage. Then, the pressurized gas in the three groups of boosting tanks 78 is supplied into the three groups of five-way valves 82 through the three groups of Y-shaped pipes 81, and the three groups of electric heaters 83 are controlled to be opened in advance, and the heat source generated by the three groups of electric heaters 83 is unidirectionally supplied into the three groups of five-way valves 82 through the three groups of heat supply pipes 84 and merges with the pressurized gas, and a pressurized heat source is formed in the three groups of five-way valves 82; Step 5. Then, the pressurized heat source in the three groups of five-way valves 82 passes through the three groups of hollow tubes 66 to reach the pressurized cavity 87 of the three groups of crushing frames 67, and then is evenly and comprehensively sprayed into the three completion fluid samples in the three groups of funnel frames 5 by the injection holes 88 on the three groups of crushing frames 67. The temperature in the three groups of funnel frames 5 is monitored in real time by the temperature sensors 17 on the three groups of plugging covers 4. The temperature in the three groups of funnel frames 5 is heated to simulate a high-temperature pressurized environment. Then, the same as step 1 is repeated, and the static viscosity of the three completion fluid samples after the temperature and pressure are increased is observed. After the three completion fluid samples complete the static viscosity test, After the three groups of collecting pots 15 are all dripped, the three groups of funnel racks 5 are in an empty barrel state. At this time, the three groups of electric heaters 83 are turned off to stop the heat source supply, and the water in the clean water cylinder 85 is supplied to the three groups of five-way valves 82 through the three groups of water supply pipes 86 under the influence of gravity to merge with the pressurized gas to form a pressurized water source. Similarly, the pressurized water source is sprayed into the three groups of funnel racks 5 through the injection holes 88 from the three groups of hollow tubes 66 and the pressurized cavities 87 of the three groups of crushing racks 67, and the inside of the three groups of funnel racks 5 is pressurized and flushed. The waste water generated by the flushing flows into the prepared collection box through the three groups of burette heads 12; Step 6: After the static viscosity test of the three completion fluid samples, if you want to simulate the dynamic environment under the influence of the gas pressure flow in the drilling well to test the viscosity of the three completion fluid samples, first control the second electric push rod 95 to start and drive the driving circular gear 96 to move down to the meshing part of the three sets of driven convex gear rings 97, and then control the double-headed motor 61 to start and drive the three sets of driven convex gear rings 97 to rotate through the driving circular gear 96 in place. At this time, the driving bevel gear 63 on the first electric push rod 62 is in an idling state. The plugging cover 4 is in a fixed state, and the three groups of annular slide rails 91 and the annular end portions 92 provide rotational support for the three groups of funnel frames 5. The three groups of driven convex gear rings 97 drive the three groups of funnel frames 5 to rotate accordingly, and the three groups of funnel frames 5 drive the three groups of connecting end portions 93 to rotate accordingly in the three groups of rotating end portions 94. In the same manner as step 1, the three completion fluid samples in the three groups of funnel frames 5 in the rotating state are dynamically titrated, and the viscosity of the three completion fluid samples under dynamic conditions is observed, thereby completing the dynamic detection operation of the three completion fluid samples.

[0034] It should be noted that the specific models and specifications of the double-headed motor 61, the first electric push rod 62, the electric heater 83 and the second electric push rod 95 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0035] The power supply and principle of the double-headed motor 61, the first electric push rod 62, the electric heater 83 and the second electric push rod 95 are clear to those skilled in the art and will not be described in detail here.

[0036] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0037] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A completion fluid viscosity detection device, characterized in that: include: A bottom frame (1), wherein the top of the bottom frame (1) is fixedly connected to a top frame (2), and the outside of the top frame (2) is connected to a sealing cylinder (3); A sealing cover (4) is fixedly connected to one side of the top frame (2) close to the sealing cylinder (3), a funnel frame (5) is provided at the bottom of the sealing cover (4), and a mixing component (6) is provided in the inner cavity of the top frame (2); The inner cavity of the sealing cylinder (3) is provided with a supply component (7), and the top of the top frame (2) is provided with an auxiliary component (8).

2. A completion fluid viscosity detection device according to claim 1, characterized in that: The mixing component (6) comprises a double-headed motor (61), the double-headed motor (61) is fixed in the inner cavity of the top frame (2), and an output shaft of the double-headed motor (61) is embedded with a first electric push rod (62), the piston rod of the first electric push rod (62) is fixedly connected to a driving bevel gear (63), and a bevel gear frame (64) is provided on the side of the driving bevel gear (63) away from the double-headed motor (61), the other end of the bevel gear frame (64) is meshed with a driven bevel gear (65), and the inner cavity of the driven bevel gear (65) is fixedly connected to a hollow tube (66) that is rotatably matched with the blocking cover (4), the bottom end of the hollow tube (66) is connected to a crushing frame (67), and one side of the crushing frame (67) is fixedly connected to a scraper frame (68) used in conjunction with the funnel frame (5).

3. A completion fluid viscosity detection device according to claim 2, characterized in that: The supply assembly (7) comprises a driving synchronous wheel (71), the driving synchronous wheel (71) being fixed on the other output shaft of the double-headed motor (61), and the side of the driving synchronous wheel (71) away from the double-headed motor (61) is connected to a driven synchronous wheel (72) through a synchronous belt transmission, the inner cavity of the driven synchronous wheel (72) is fixedly connected to a concave rod (73) used in conjunction with the top frame (2), and the center of the concave rod (73) is rotatably connected to a rotating sleeve (74), the rotating sleeve (74) is fixedly connected to a connecting rod (75), and the other end of the connecting rod (75) is hinged to a piston (76) slidably matched with the sealing cylinder (3), the exhaust port of the sealing cylinder (3) is connected to a supply pipe (77), and the top end of the supply pipe (77) is connected to a booster tank (78) fixedly matched with the top frame (2).

4. A completion fluid viscosity detection device according to claim 3, characterized in that: The auxiliary component (8) comprises a Y-shaped tube (81), the Y-shaped tube (81) being connected to the exhaust port of the boosting tank (78), and one end of the Y-shaped tube (81) away from the boosting tank (78) being connected to a five-way valve (82), the inner end of the five-way valve (82) being connected to a heating pipe (84), and the inner end of the heating pipe (84) being connected to an electric heater (83) fixedly matched with the top frame (2), the top of the top frame (2) being fixedly connected to a clean water cylinder (85), and the drain port of the clean water cylinder (85) being connected to a water supply pipe (86) used in combination with the five-way valve (82), the water supply pipe (86) being provided with a control valve, and the inner cavity of the crushing frame (67) being provided with a pressurizing cavity (87) used in combination with the hollow tube (66), and the crushing frame (67) being provided with injection holes (88) on all sides.

5. A completion fluid viscosity detection device according to claim 4, characterized in that: The pulverizing frame (67) is designed in a spiral shape, and a stirring blade (10) is fixedly connected to a side of the scraper frame (68) close to the pulverizing frame (67), and the stirring blade (10) and the pulverizing frame (67) are distributed in a staggered state.

6. A completion fluid viscosity detection device according to claim 5, characterized in that: The driving synchronous wheel (71) is drivingly connected to a positioning wheel (11) that rotates with the top frame (2) on one side close to the synchronous belt, and an exhaust valve is provided on the supply pipe (77), and an air inlet of the sealing cylinder (3) is provided with an air inlet valve.

7. A completion fluid viscosity detection device according to claim 6, characterized in that: The bottom end of the funnel frame (5) is connected to a titration head (12), and an electric control valve (13) and a viscosity sensor (14) are respectively provided on the titration head (12).

8. A completion fluid viscosity detection device according to claim 7, characterized in that: A feeding port (16) is provided at the top of the outer side of the funnel frame (5), and a plugging head is threadedly connected to the feeding port (16).

9. A completion fluid viscosity detection device according to claim 8, characterized in that: A temperature sensor (17) used in conjunction with the funnel frame (5) is embedded on one side of the blocking cover (4), and a weighing sensor (18) is embedded on the side of the bottom frame (1) away from the top frame (2), and a collecting pot (15) used in conjunction with the titration head (12) is placed on the weighing sensor (18).

10. A completion fluid viscosity detection method, according to the completion fluid viscosity detection device according to claim 9, characterized in that: The steps include: Step 1: First, three completion fluid samples are placed in a funnel rack (5) blocked by three sets of blocking caps (4), and then three sets of electric control valves (13) are controlled to open. Under the action of gravity, the three completion fluid samples in the three funnel racks (5) are titrated through three sets of titration heads (12) and fall into three sets of collection pots (15). The three viscosity sensors (14) detect the viscosity of the three completion fluid samples passing through the three titration heads (12) in real time, and the three weighing sensors (18) detect the viscosity of the three completion fluid samples in the three collection pots (15). The three completed fluid samples collected are weighed. If the three viscosity sensors (14) detect that the viscosity of the three completed fluid samples is low, the plugging heads on the three feeding ports (16) are opened, and thickening fluid is added to the three funnel racks (5). If the three viscosity sensors (14) detect that the viscosity of the three completed fluid samples is high, diluent is added to the three funnel racks (5). If the three viscosity sensors (14) detect that the viscosity of the three completed fluid samples is normal, the static viscosity detection of the three completed fluid samples is completed. Step 2: If the viscosity of the three completion fluid samples is low or high, and thickening liquid or diluent is added to the three groups of funnel frames (5) accordingly, the first electric push rod (62) is first controlled to start and drive the driving bevel gear (63) to move up and get stuck to the meshing part of one end of the three groups of bevel gear frames (64), and then the double-headed motor (61) is controlled to start and drive the three groups of bevel gear frames (64) to rotate synchronously through the driving bevel gear (63) in place, and the other end of the three groups of bevel gear frames (64) drives the three groups of driven bevel gears (65) to rotate accordingly, and the three groups of driven bevel gears (65) are rotated accordingly. The gear (65) drives the crushing racks (67) on the three sets of hollow tubes (66) to rotate synchronously in the three sets of funnel racks (5). The three sets of crushing racks (67) in the rotating state evenly mix the thickening liquid or diluent added to the three sets of funnel racks (5) and the original three completion fluid samples. At the same time, the three sets of scraping bar racks (68) and stirring blades (10) that rotate synchronously with the crushing racks (67) scrape off the viscous substances attached to the inner walls of the three sets of funnel racks (5), and also assist in stirring the thickening liquid or diluent added to the three sets of funnel racks (5); Step 3: After the thickening liquid or the diluent is mixed and prepared with the three original completion fluid samples, the double-headed motor (61) is first controlled to pause, and then the first electric push rod (62) is controlled to be closed and drive the driving bevel gear (63) to move downward and disengage from the meshing portion of one end of the three sets of bevel gear racks (64) to the initial position, and then the three completion fluid samples that have been prepared with the same viscosity are subjected to a static viscosity test in the same step. During the static viscosity test of the three completion fluid samples, the other output of the double-headed motor (61) is used to The shaft drives the driving synchronous wheel (71) to rotate. At this time, the driving bevel gear (63) on the first electric push rod (62) is in an idling state. Under the tensioning cooperation of the three sets of positioning wheels (11) on the synchronous belt, the driving synchronous wheel (71) drives the concave rods (73) on the three sets of driven synchronous wheels (72) to rotate synchronously through the synchronous belt. The three sets of concave rods (73) drive the pistons (76) on the three sets of connecting rods (75) through the three sets of rotating sleeves (74) to perform reciprocating work in the three sets of sealing cylinders (3); Step 4: When the three sets of pistons (76) are in the return air intake state in the three sets of sealing cylinders (3), the exhaust valves on the three sets of supply pipes (77) are controlled to be closed, and the intake valves on the three sets of air intake ports are controlled to be opened. Then, the outside air enters the three sets of sealing cylinders (3) under the suction force generated by the three sets of pistons (76) in the return state. When the three sets of pistons (76) are in the process exhaust state in the three sets of sealing cylinders (3), on the contrary, the three sets of pistons (76) exhaust the air entering the three sets of sealing cylinders (3). The pressurized gas is supplied to three groups of boosting tanks (78) through three groups of supply pipes (77) for temporary storage. Subsequently, the pressurized gas in the three groups of boosting tanks (78) is supplied to three groups of five-way valves (82) through three groups of Y-shaped pipes (81), and the three groups of electric heaters (83) are controlled to be turned on in advance. The heat source generated by the three groups of electric heaters (83) is supplied to the three groups of five-way valves (82) in a unidirectional manner through three groups of heat supply pipes (84) and merges with the pressurized gas to form a pressurized heat source in the three groups of five-way valves (82); Step 5. Then, the pressurized heat source in the three groups of five-way valves (82) passes through the three groups of hollow tubes (66) to reach the pressurized cavity (87) of the three groups of crushing frames (67), and then is evenly and comprehensively sprayed into the three completion fluid samples in the three groups of funnel frames (5) through the injection holes (88) on the three groups of crushing frames (67). The temperature in the three groups of funnel frames (5) is monitored in real time by the temperature sensors (17) on the three groups of plugging covers (4). The temperature in the three groups of funnel frames (5) is heated to simulate a high-temperature pressurized environment. The same as step 1 is then performed, and the static viscosity of the three completion fluid samples after the temperature and pressure are increased is observed. After the static viscosity detection operation of the three completion fluid samples is completed, After all the water drips into the three sets of collecting pots (15), the three sets of funnel racks (5) are in an empty barrel state. At this time, the three sets of electric heaters (83) are turned off to stop the heat source supply, and the water in the clean water cylinder (85) is supplied to the three sets of five-way valves (82) through the three sets of water supply pipes (86) under the influence of gravity to merge with the pressurized gas to form a pressurized water source. Similarly, the pressurized water source is sprayed into the three sets of funnel racks (5) through the injection holes (88) from the three sets of hollow tubes (66) and the pressurized cavities (87) of the three sets of crushing racks (67), so as to perform pressurized flushing on the inside of the three sets of funnel racks (5). The waste water generated by the flushing flows into the prepared collection box through the three sets of burette heads (12).

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