A device for detecting viscosity of cementing materials

Abstract

The present application discloses a cementing material viscosity detection device, including a test box, which is divided into a filling bin, a control bin and a collection bin by two partitions, and the two partitions are provided with corresponding through holes, and a test tube is provided in the filling bin, and the test tube passes through the two through holes and extends into the collection bin, and a test hopper is also installed on the upper end of the test tube, and a sealing plug is also provided in the through hole, and the two sides of the through hole are provided with a limit structure corresponding to the test hopper and the sealing plug, and a control valve is installed on the test tube, and a sealing structure is provided at the connection between the test tube and the bottom partition, and a metering scale is provided at the bottom of the collection bin and the position corresponding to the through hole. The utility model can simulate the downhole environment and pump body pressure, and more accurately obtain the viscosity information of cementing materials under various environments, and can also conduct multiple groups of experiments with the same material or different materials, further improving the accuracy and efficiency of the experiment.

Description

Technical Field

[0001] The utility model relates to the technical field of cementing materials, in particular to a cementing material viscosity detection device. Background Art

[0002] In the process of mining and drilling, cementing materials are one of the important basic raw materials. Their main function is to be used for interlayer isolation and casing protection to ensure the stability and safety of the wellbore. Common cementing materials include cementing cement, admixtures, and external additives. Cementing cement has suitable density and setting time, low consistency, good anti-settling and pumpability.

[0003] In cementing operations, the correct measurement and control of drilling fluid viscosity is crucial to ensure drilling efficiency and well quality. It is necessary to perform specific tests based on multiple data of cementing materials, such as different cementing materials, different temperatures, different downhole pressures, etc., to analyze key characteristics of cementing materials such as flow properties and pumping performance. For this reason, we propose a cementing material viscosity detection device to solve the above problems. Utility Model Content

[0004] The present application provides a cementing material viscosity detection device, which solves the problem of estimating the fluidity test of the material.

[0005] The present application provides a cementing material viscosity detection device, including a test box, which is divided into a filling bin, a control bin and a collection bin by two partitions, and the two partitions are provided with corresponding through holes, and a test tube is provided in the filling bin, and the test tube passes through the two through holes and extends into the collection bin, and a test hopper is also installed on the upper end of the test tube, and a sealing plug is also provided in the through hole, and limiting structures corresponding to the test hopper and the sealing plug are provided on both sides of the through hole, and a control valve is installed on the test tube, and the test tube A sealing structure is provided at the connection with the bottom partition plate, a weighing scale is provided at the bottom of the collecting bin and at the position corresponding to the through hole, a collecting cup is placed on the weighing scale, a gas storage cabinet is installed on one side of the test box, the air pipes of the gas storage cabinet extend to the filling bin and the collecting bin respectively, and the air pipes connected to the filling bin and the collecting bin are connected to solenoid valves, pressure sensors are also installed in the filling bin and the collecting bin, the pressure sensor, the weighing scale and the solenoid valve are all controlled by a control box, and a sealing door is installed on one side of the test box.

[0006] Preferably, the bottom of the test hopper is conical and extends into the test tube. A bearing plate is fixed to the upper end of the test tube, and a docking plate corresponding to the bearing plate is fixed to the test hopper.

[0007] Preferably, the limiting structure includes a support column fixed on the partition, a pressure block is slidably sleeved on the support column, a spring is sleeved on the support column, the spring is located between the pressure block and the partition, and the upper end of the spring is fixed to the pressure block.

[0008] Preferably, the sealing structure comprises a thread provided on the test tube, the position where the thread is provided on the test tube is located at the position of the partition of the second layer, and the thread on the test tube is sleeved with a locking nut.

[0009] Preferably, the control valve is located in the control chamber.

[0010] Preferably, the weighing scale is provided with a guardrail.

[0011] Preferably, the test tube is composed of multiple sections, and each section of the test tube is connected by threads.

[0012] Preferably, there are three sealing doors, and the three sealing doors correspond to the filling bin, the control bin and the collection bin respectively.

[0013] It can be seen from the above technical scheme that the present application provides a cementing material viscosity detection device. During use, the present application installs a test tube according to demand, and the other through holes where the test tube is not installed are sealed by a sealing plug, and a sufficient amount of compressed air is injected into the gas storage cabinet through an air pump. After the equipment is configured, the cementing material is first placed in the test hopper, and the test hopper is installed on the corresponding test tube, and the limit mechanism is used to limit the position, and the sealing door is closed. The pressure of the filling bin and the collecting bin is set by the control box, and the solenoid valve is opened to fill the filling bin and the collecting bin to the set pressure. After that, the control valve is opened, and the material in the control valve flows into the collecting cup through the test tube, and the weight is measured in real time by a metering scale. The passing condition of the cementing material is obtained by the change in weight, and the estimated material viscosity is obtained by combining calculations. When the experiment is over, the test tube is closed, and the pressure of the filling bin and the collecting bin is relieved, and the test tube, test hopper and collecting cup are cleaned in time to avoid affecting the cleaning after the material solidifies.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the setting of partitions, the box is divided into a filling chamber, a control chamber and a collection chamber. Each chamber can be controlled. The filling chamber can simulate the pressure of the pump group, and the collection chamber can simulate the downhole pressure, so the test structure is more accurate;

[0016] 2. Through the setting of multiple through holes and sealing plugs, the experimental groups can be arranged according to the experimental requirements, and multiple groups of experiments can be measured simultaneously to improve the accuracy of the experiment. The viscosity between different materials can also be tested;

[0017] 3. Through the setting of the gas storage cabinet and the solenoid valve, the filling bin and the collection bin can be pressurized to the specified pressure and the pressure can be accurately controlled. The structure is simple and easy to control.

[0018] In summary, the utility model can simulate the downhole environment and pump pressure, more accurately obtain the viscosity information of cementing materials under various environments, and can also conduct multiple groups of experiments with the same material or different materials, further improving the accuracy and efficiency of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 This is a schematic diagram of the internal structure of a cementing material viscosity detection device proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the external structure of a cementing material viscosity detection device proposed by the utility model;

[0022] Figure 3 This is an enlarged view of the structure at position A of a cementing material viscosity detection device proposed by the utility model;

[0023] Figure 4 This is an enlarged view of the structure at position B of a cementing material viscosity detection device proposed by the utility model;

[0024] Figure 5 This is an enlarged view of the structure at position C of a cementing material viscosity detection device proposed by the utility model.

[0025] In the figure: 1 test box, 2 sealing plug, 3 solenoid valve, 4 air pipe, 5 gas storage cabinet, 6 test tube, 7 collecting cup, 8 weighing scale, 9 guardrail, 10 partition, 11 through hole, 12 control box, 13 control valve, 14 pressure sensor, 15 sealing door, 16 test hopper, 17 docking plate, 18 bearing plate, 19 pressure block, 20 spring, 21 support column, 22 locking nut, 23 thread. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] See also Figure 1-5, a cementing material viscosity detection device, used for efficiently detecting the viscosity of the estimated material, specifically, including a test box 1, the test box 1 is a sealed box, which is a closed cavity after being closed, the test box 1 is divided into a filling chamber, a control chamber and a collection chamber by two partitions 10, which are respectively used to simulate pump pressure, control the circulation of cementing materials and simulate downhole pressure, and the two partitions 10 are provided with corresponding through holes 11, a test tube 6 is provided in the filling chamber, the test tube 6 passes through the two through holes 11 and extends into the collection chamber, the test tube 6 is connected with the filling chamber and the collection chamber, and is used to test the viscosity of the cementing material. During the specific simulation, the connection between the test tube 6 and the partition 10 should be sealed, and a test hopper 16 is also installed at the upper end of the test tube 6 for storing the test material. During installation, the test hopper 16 and the test tube 6 need to be sealed to avoid leakage of the filling chamber. During the experiment, for the through holes 11 that are not used, a sealing plug 2 is also provided in the through hole 11, and both sides of the through hole 11 are provided with a sealing plug 2 for the test material. The limiting structure corresponding to the hopper 16 and the sealing plug 2 is used to support the sealing plug 2 and the test hopper 16. In the test stage, in order to prevent the estimated material from falling in advance, a control valve 13 is installed on the test tube 6. When the test starts, the control valve 13 is opened for testing. It should be noted that since the collection bin will also be pressurized, a sealing structure is provided at the connection between the test tube 6 and the bottom partition 10 to seal the collection bin. A weighing scale 8 is provided at the bottom of the collection bin and at the position corresponding to the through hole 11. A collection cup 7 is placed on the weighing scale 8. A guardrail 9 is provided on the weighing scale 8 to facilitate the rapid placement of the collection cup 7. In the test stage, the cementing material is discharged downward along the test tube and falls into the collection cup 7 after entering the collection bin. Therefore, the mass of the cementing material flowing out within a certain time interval can be measured, thereby obtaining the viscosity information of the cementing material. In specific tests, multiple groups of tests can be performed simultaneously to improve accuracy. In order to improve test efficiency, a variety of different materials can be tested under the same conditions.

[0028] In terms of air pressure simulation, a gas storage cabinet 5 is installed on one side of the test box 1. The gas storage cabinet 5 is used to store compressed gas for the test. It should be understood that the gas storage cabinet 5 has the ability to replenish compressed gas. The air pipe 4 of the gas storage cabinet 5 extends to the filling bin and the collecting bin respectively, and the air pipe 4 connected to the filling bin and the collecting bin is connected to the solenoid valve 3. The pressure of the filling bin and the collecting bin is controlled by the solenoid valve 3. A pressure sensor 14 is also installed in the filling bin and the collecting bin. The pressure is monitored by the pressure sensor 14 to accurately detect the test pressure. In the present application, the pressure sensor 14, the weighing scale 8 and the solenoid valve 3 are all controlled by the control box 12, and each electronic device can be controlled by the control box 12. A sealing door 15 is installed on one side of the test box 1. After the experiment is prepared, the sealing of the test box 1 is completed by the sealing door 15. There are three specific sealing doors 15, and the three sealing doors 15 correspond to the filling bin, the control bin and the collecting bin, respectively, so as to facilitate the control of each bin.

[0029] In the utility model, the bottom of the test hopper 16 is set in a conical shape, and the bottom of the test hopper 16 extends into the test tube 6, which can improve the stability of the connection between the test hopper 16 and the test tube 6. A load-bearing plate 18 is fixed to the upper end of the test tube 6, and a docking plate 17 corresponding to the load-bearing plate 18 is fixed on the corresponding test hopper 16. When the test hopper 16 is placed, the docking plate 17 abuts against the load-bearing plate 18 and is supported and limited by a limiting structure. Sealing rings are provided between the load-bearing plate 18 and between the docking plate 17 and the load-bearing plate 18 to improve the sealing performance.

[0030] In the utility model, Figure 3 As shown, the limiting structure includes a support column 21 fixed on the partition 10, and a pressure block 19 is slidably sleeved on the support column 21. The pressure block 19 can slide and rotate on the support column 21. A spring 20 is sleeved on the support column 21. The spring 20 is located between the pressure block 19 and the partition 10, and the upper end of the spring 20 is fixed to the pressure block 19. When the pressure block 19 moves upward, the spring 20 can be stretched to provide downward pressure on the pressure block 19. Specifically, the pressure block 19 can be used to press the sealing plug 2 or the docking plate 17 to limit the position.

[0031] In the utility model, Figure 4 As shown, the sealing structure includes a thread 23 provided on the test tube 6. The position where the thread 23 is provided on the test tube 6 is located at the position of the partition 10 of the second layer. The thread on the test tube 6 is sleeved with a locking nut 22. When the test tube 6 is installed, the locking nut 22 is screwed on one end of the test tube 6 located at the collection bin to seal the collection bin. It should be understood that in order to improve the sealing performance, a sealing ring is provided between the locking nut 22 and the partition 10.

[0032] In some embodiments, Figure 1As shown, the control valve 13 is located in the control chamber to facilitate control under pressurized conditions.

[0033] In some embodiments, Figure 5 As shown, in order to facilitate the installation of the test tube 6, the test tube 6 is composed of multiple sections, and each section of the test tube 6 is connected by threads, which can be quickly assembled and connected with good sealing performance.

[0034] It can be seen from the above technical scheme that during the use of the present application, the test tube 6 is installed according to the needs, and the other through holes 11 where the test tube 6 is not installed are blocked by the sealing plug 2, and a sufficient amount of compressed air is injected into the gas storage cabinet 5 by the air pump. After the equipment is configured, the cementing material is first placed in the test hopper 16, and the test hopper 16 is installed on the corresponding test tube 6, and the limit mechanism is used to limit the position, and the sealing door 15 is closed. The pressure of the filling bin and the collecting bin is set by the control box 12. After the solenoid valve 3 is opened to fill the filling bin and the collecting bin to the set pressure, the control valve 13 is opened, and the material in the control valve 13 flows into the collecting cup 7 through the test tube 6, and the weight is measured in real time by the measuring scale 8. The passing condition of the cementing material is obtained by the change in weight, and the estimated material viscosity is obtained by combining the calculation. When the experiment is over, the test tube 6 is closed, and the pressure of the filling bin and the collecting bin is relieved, and the test tube 6, the test hopper 16 and the collecting cup 7 are cleaned in time to avoid affecting the cleaning after the material solidifies.

[0035] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope of the present application is indicated by the claims.

[0036] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A cementing material viscosity detection device, comprising a test box (1), characterized in that: The test box (1) is divided into a filling chamber, a control chamber and a collection chamber by two partitions (10), and the two partitions (10) are each provided with a corresponding through hole (11). A test tube (6) is provided in the filling chamber, and the test tube (6) passes through the two through holes (11) and extends into the collection chamber. A test hopper (16) is also installed at the upper end of the test tube (6), and a sealing plug (2) is also provided in the through hole (11), and limiting structures corresponding to the test hopper (16) and the sealing plug (2) are provided on both sides of the through hole (11). A control valve (13) is installed on the test tube (6), and the connection between the test tube (6) and the bottom partition (10) is A sealing structure is provided at the bottom of the collecting bin and at a position corresponding to the through hole (11), a weighing scale (8) is provided, a collecting cup (7) is placed on the weighing scale (8), a gas storage cabinet (5) is installed on one side of the test box (1), an air pipe (4) of the gas storage cabinet (5) extends to the filling bin and the collecting bin respectively, and the air pipe (4) connected to the filling bin and the collecting bin is connected to a solenoid valve (3), a pressure sensor (14) is also installed in the filling bin and the collecting bin, and the pressure sensor (14), the weighing scale (8) and the solenoid valve (3) are all controlled by a control box (12), and a sealing door (15) is installed on one side of the test box (1).

2. A cementing material viscosity detection device according to claim 1, characterized in that: The bottom of the test hopper (16) is arranged in a conical shape, and the bottom of the test hopper (16) extends into the test tube (6). A bearing plate (18) is fixed to the upper end of the test tube (6), and a docking plate (17) corresponding to the bearing plate (18) is fixed to the test hopper (16).

3. A cementing material viscosity detection device according to claim 2, characterized in that: The limiting structure comprises a support column (21) fixed on the partition (10), a pressure block (19) is slidably sleeved on the support column (21), a spring (20) is sleeved on the support column (21), the spring (20) is located between the pressure block (19) and the partition (10), and the upper end of the spring (20) is fixed to the pressure block (19).

4. A cementing material viscosity detection device according to claim 2, characterized in that: The sealing structure comprises a thread (23) arranged on the test tube (6); the position where the thread (23) is arranged on the test tube (6) is located at the position of the partition (10) of the second layer; and a locking nut (22) is sleeved on the thread on the test tube (6).

5. A cementing material viscosity detection device according to claim 1, characterized in that: The control valve (13) is located in the control chamber.

6. A cementing material viscosity detection device according to claim 1, characterized in that: The weighing scale (8) is provided with a guardrail (9).

7. A cementing material viscosity detection device according to claim 1, characterized in that: The test tube (6) is composed of multiple sections, and each section of the test tube (6) is connected by threads.

8. A cementing material viscosity detection device according to claim 1, characterized in that: There are three sealing doors (15), and the three sealing doors (15) correspond to the filling bin, the control bin and the collection bin respectively.

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