Surface tension testing device for waterproof locking agent system for fracturing

Abstract

The utility model provides a surface tension testing device for a waterproof locking agent system for fracturing. The surface tension testing device comprises a workbench; the fixing column is fixedly installed on one side of the top of the workbench, a supporting platform is fixedly installed on the top of the fixing column, a first water tank is arranged on the top of the supporting platform, and a limiting platform is fixedly installed on one side of the top of the supporting platform. According to the surface tension testing device for the waterproof locking agent system for fracturing, the baffle is mounted at the top of the supporting platform, when the mounting plate moves upwards to be attached to the bottom of the baffle, the supporting platform and the mounting plate are kept in the horizontal state, and the liquid level of the water level in the first water tank and the liquid level of the water level in the second water tank are kept horizontal. The limiting platform can limit the mounting plate and the supporting platform to be kept on the same horizontal line, and the limiting platform limits the mounting plate to be kept sliding up and down stably, so that the practicability and the accuracy of tension testing are improved.

Description

Technical Field

[0001] The utility model relates to the field of tension testing, in particular to a surface tension testing device for a waterproof locking agent system for fracturing. Background Art

[0002] The waterproof lock agent system for fracturing is a treatment agent system used to reduce the damage of water to the reservoir during the fracturing process and improve the fracturing effect. It is usually composed of a variety of chemical agents and has the following functions: Reduce surface tension: The waterproof lock agent can reduce the surface tension of the solution, making it easier to penetrate and diffuse in the reservoir, and reduce the accumulation of water on the reservoir surface; Change wettability: By changing the wettability of the reservoir surface, it changes from hydrophilic to hydrophobic, thereby reducing the contact between water and the reservoir; Inhibit water lock effect: The waterproof lock agent can form a protective film on the surface of the reservoir to prevent water from entering the reservoir pores and inhibit the occurrence of water lock effect; Improve backflow capacity: It helps to improve the backflow capacity of the fracturing fluid, so that the fracturing fluid can be more easily discharged from the reservoir, reducing damage to the reservoir.

[0003] In actual applications, the selection and use of waterproof lock agent systems for fracturing need to be optimized and adjusted according to factors such as the properties of the reservoir and the fracturing process. The method of using waterproof lock agent systems for fracturing will vary depending on the specific product and application scenario. The common method of use is direct addition: add the waterproof lock agent directly to the fracturing fluid according to the product instructions and recommended addition amount. Usually, the waterproof lock agent can be mixed evenly with the fracturing fluid as needed before or during fracturing construction. However, the surface tension of the liquid is one of the weight characteristics of the liquid. There are many ways to measure the surface tension coefficient of the liquid. The pull-off method is one of the commonly used methods, and the maximum bubble method for measuring the surface tension of the liquid is a classic surface tension measurement method.

[0004] For example, a device for testing the surface tension of liquid with publication number CN210533933U detects the tension value during contact and pulling off by setting a force-sensitive sensor, a pull rope and a metal ring. The approximate height of the metal ring in the liquid cup is adjusted by setting a telescopic mechanism to facilitate measurement. The height of liquid cup 2 is adjusted by setting a lifting mechanism and a limiting mechanism to change the height of the liquid in liquid cup 2, so that a height difference occurs between the liquid in liquid cup 2 and the liquid in liquid cup 1, and a siphon phenomenon occurs, so that the liquid in liquid cup 1 smoothly separates from the metal ring. However, the device for testing the surface tension of liquid adopts manual adjustment when adjusting the mounting plate 3 and the liquid cup 2, and it is impossible to accurately observe whether the mounting plate 1 and the mounting plate 3 are maintained at the same level, and it is impossible to accurately maintain the water level inside the liquid cup 1 and the liquid cup 2 at the same level. The tension test has deviation and poor accuracy.

[0005] Therefore, it is necessary to provide a surface tension testing device for a waterproof lock agent system for fracturing to solve the above technical problems. Utility Model Content

[0006] The utility model provides a surface tension testing device for a waterproof locking agent system for fracturing, which solves the problem that a device for testing the surface tension of liquid adopts manual adjustment when adjusting the mounting plate three and the liquid cup two, and cannot accurately observe whether the mounting plate one and the mounting plate three are maintained at the same horizontal height, and cannot accurately maintain the water level inside the liquid cup one and the liquid cup two at the same horizontal height, resulting in deviation in tension testing and poor accuracy.

[0007] In order to solve the above technical problems, the utility model provides a surface tension testing device for a waterproof locking agent system for fracturing, comprising: a workbench;

[0008] A fixed column, the fixed column is fixedly installed on one side of the top of the workbench, a support platform is fixedly installed on the top of the fixed column, a first water tank is provided on the top of the support platform, a limit platform is fixedly installed on one side of the top of the support platform, and the limit platform includes a baffle, a fixed plate and a limit plate;

[0009] a threaded hole, the threaded hole being opened on the other side of the top of the workbench, the internal threads of the threaded hole being engaged with a threaded rod, the top of the outer surface of the threaded rod being rotatably connected to a mounting plate, and the top of the mounting plate being provided with a second water tank;

[0010] A connecting water pipe, wherein both ends of the connecting water pipe are fixedly connected to the bottom of the first water tank and the bottom of the second water tank respectively.

[0011] Preferably, the baffle is fixedly mounted on one side of the top of the support platform, the two fixing plates are respectively fixedly mounted on both sides of the outer surface of the baffle, and the two limiting plates are respectively fixedly mounted on the other two sides of the outer surface of the baffle.

[0012] Preferably, a hydraulic cylinder is fixedly installed on the right side of the top of the workbench, a connecting plate is fixedly connected to the top end of the output shaft of the hydraulic cylinder, and a force sensor is fixedly installed on one side of the connecting plate.

[0013] Preferably, a hanging ring is provided at the bottom of the force-sensitive sensor, a hanging rope is provided at the bottom of the hanging ring, and a metal block is provided at the bottom of the hanging rope.

[0014] Preferably, the bottom end of the threaded rod is fixedly connected to an adjusting block.

[0015] Preferably, a first limiting plate is fixedly mounted on one side of the limiting platform, and a card slot is provided on one side of the first limiting plate.

[0016] Preferably, a second limiting plate is fixedly mounted on the other side of the limiting platform, and a receiving groove is provided on the surface of the second limiting plate.

[0017] Compared with related technologies, the surface tension testing device for a waterproof locking agent system for fracturing provided by the present invention has the following beneficial effects:

[0018] The utility model provides a surface tension testing device for a waterproof locking agent system for fracturing. By installing a baffle on the top of a supporting platform, when the mounting plate moves upward to fit against the bottom of the baffle, the supporting platform and the mounting plate remain in a horizontal state, and the water levels inside the first water tank and the second water tank are kept horizontal. The device has a simple structure and strong practicality. The limiting platform can limit the mounting plate and the supporting platform to remain on the same horizontal line, and the limiting platform limits the mounting plate to maintain smooth up and down sliding, thereby improving the practicality and accuracy of the tension test. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a first embodiment of a surface tension testing device for a waterproof locking agent system for fracturing provided by the utility model;

[0020] Figure 2 for Figure 1 An enlarged schematic diagram of point A is shown;

[0021] Figure 3 This is a schematic structural diagram of a second embodiment of a surface tension testing device for a waterproof locking agent system for fracturing provided by the present invention;

[0022] Figure 4 for Figure 3 The schematic diagram of the first limiting plate structure is shown.

[0023] Numbers in the figure: 1. Workbench, 2. Hydraulic cylinder, 3. Connecting plate, 4. Force sensitive sensor, 5. Hanging ring, 6. Lifting rope, 7. Metal block, 8. Fixed column, 9. Support platform, 10. First water tank, 11. Threaded hole, 12. Threaded rod, 13. Adjustment block, 14. Mounting plate, 15. Second water tank, 16. Limiting platform, 161. Baffle, 162. Fixed plate, 163. Limiting plate, 17. Connecting water pipe, 18. First limiting plate, 19. Slot, 20. Second limiting plate, 21. Receiving slot. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0025] First embodiment

[0026] Please refer to Figure 1 and Figure 2 ,in, Figure 1This is a structural schematic diagram of a first embodiment of a surface tension testing device for a waterproof locking agent system for fracturing provided by the utility model; Figure 2 for Figure 1 The enlarged schematic diagram of point A is shown. A surface tension testing device for a waterproof locking agent system for fracturing comprises: a workbench 1;

[0027] A fixed column 8 is fixedly mounted on one side of the top of the workbench 1. A support platform 9 is fixedly mounted on the top of the fixed column 8. A first water tank 10 is provided on the top of the support platform 9. A limit platform 16 is fixedly mounted on one side of the top of the support platform 9. The limit platform 16 includes a baffle 161, a fixed plate 162 and a limit plate 163.

[0028] A threaded hole 11 is provided on the other side of the top of the workbench 1. The internal threads of the threaded hole 11 are engaged with a threaded rod 12. The top of the outer surface of the threaded rod 12 is rotatably connected to a mounting plate 14. A second water tank 15 is provided on the top of the mounting plate 14.

[0029] The connecting water pipe 17 has two ends fixedly connected to the bottom of the first water tank 10 and the bottom of the second water tank 15 respectively.

[0030] The baffle 161 is fixedly installed on one side of the top of the support platform 9, the two fixing plates 162 are fixedly installed on both sides of the outer surface of the baffle 161, and the two limiting plates 163 are fixedly installed on the other two sides of the outer surface of the baffle 161.

[0031] A hydraulic cylinder 2 is fixedly installed on the right side of the top of the workbench 1, and a connecting plate 3 is fixedly connected to the top of the output shaft of the hydraulic cylinder 2. A force sensor 4 is fixedly installed on one side of the connecting plate 3.

[0032] A hanging ring 5 is provided at the bottom of the force-sensitive sensor 4 , a hanging rope 6 is provided at the bottom of the hanging ring 5 , and a metal block 7 is provided at the bottom of the hanging rope 6 .

[0033] An adjusting block 13 is fixedly connected to the bottom end of the threaded rod 12 .

[0034] The working principle of the surface tension testing device for a waterproof locking agent system for fracturing provided by the utility model is as follows:

[0035] During operation, first, the threaded rod 12 is rotated to engage the threaded hole 11 and move upward. The threaded rod 12 pushes the mounting plate 14 to slide upward along the limit plate 163. The mounting plate 14 moves upward to the bottom of the baffle 161 and fits the bottom of the baffle 161, so that the mounting plate 14 and the support platform 9 maintain the same horizontal height. The user injects the same cubic meter of water into the first water tank 10 and the second water tank 15, so that the water levels inside the first water tank 10 and the second water tank 15 maintain the same horizontal height.

[0036] When the bottom of the metal block 7 is in contact with the water surface, the threaded rod 12 is rotated to engage the threaded hole 11 and move downward. The threaded rod 12 drives the mounting plate 14 and the second water tank 15 to move downward, and the second water tank 15 drives the water to move downward together. There is a height difference between the water level inside the second water tank 15 and the water level inside the first water tank 10, so that the water inside the first water tank 10 moves to the side of the second water tank 15 through the connecting water pipe 17, thereby testing the tension value between the horizontal surface inside the first water tank 10 and the metal block 7, and measuring the tension value through the force sensitive sensor 4.

[0037] Compared with related technologies, the surface tension testing device for a waterproof locking agent system for fracturing provided by the present invention has the following beneficial effects:

[0038] The utility model provides a surface tension testing device for a waterproof lock agent system for fracturing. By installing a baffle 161 on the top of the support platform 9, when the mounting plate 14 moves upward to fit against the bottom of the baffle 161, the support platform 9 and the mounting plate 14 remain in a horizontal state, and the water levels inside the first water tank 10 and the second water tank 15 are kept horizontal. The device has a simple structure and strong practicality. The limiting platform 16 can limit the mounting plate 14 and the support platform 9 to maintain the same horizontal line, and the limiting platform 16 limits the mounting plate 14 to maintain smooth sliding up and down, thereby improving the practicality and accuracy of the tension test.

[0039] Second embodiment

[0040] Please refer to Figure 3 and Figure 4 Based on the surface tension testing device for a water-blocking agent system for fracturing provided in the first embodiment of this application, the second embodiment of this application provides another surface tension testing device for a water-blocking agent system for fracturing. The second embodiment is merely a preferred embodiment of the first embodiment, and implementation of the second embodiment will not affect the implementation of the first embodiment alone.

[0041] Specifically, the difference of the surface tension testing device for a waterproof locking agent system for fracturing provided in the second embodiment of the present application is that, in a surface tension testing device for a waterproof locking agent system for fracturing, a first limiting plate 18 is fixedly installed on one side of the limiting platform 16, and a card slot 19 is opened on one side of the first limiting plate 18.

[0042] A second limiting plate 20 is fixedly mounted on the other side of the limiting platform 16 , and a receiving groove 21 is formed on the surface of the second limiting plate 20 .

[0043] The working principle of the surface tension testing device for a waterproof locking agent system for fracturing provided by the utility model is as follows:

[0044] During operation, the first limiting plate 18 and the second limiting plate 20 are first installed on the left and right sides of the baffle 161 surface respectively, so that the first water tank 10 and the second water tank 15 are restricted in the middle of the support platform 9 and the mounting plate 14 surface through the card slot 19 and the receiving slot 21.

[0045] Compared with related technologies, the surface tension testing device for a waterproof locking agent system for fracturing provided by the present invention has the following beneficial effects:

[0046] The utility model provides a surface tension testing device for a waterproof lock agent system for fracturing, by respectively installing a first limiting plate 18 and a second limiting plate 20 on the left and right sides of the surface of a baffle 161, so that the first water tank 10 and the second water tank 15 are restricted in the middle of the support platform 9 and the surface of the mounting plate 14 through a slot 19 and a receiving slot 21, so that the first water tank 10 and the second water tank 15 are stably installed in the middle of the support platform 9 and the top of the mounting plate 14, and the stability of the installation of the first water tank 10 and the second water tank 15 is maintained, thereby improving the practicality of the device.

[0047] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A surface tension testing device for a waterproof locking agent system for fracturing, characterized in that: include: Workbench; A fixed column, the fixed column is fixedly installed on one side of the top of the workbench, a support platform is fixedly installed on the top of the fixed column, a first water tank is provided on the top of the support platform, a limit platform is fixedly installed on one side of the top of the support platform, and the limit platform includes a baffle, a fixed plate and a limit plate; a threaded hole, the threaded hole being opened on the other side of the top of the workbench, the internal threads of the threaded hole being engaged with a threaded rod, the top of the outer surface of the threaded rod being rotatably connected to a mounting plate, and the top of the mounting plate being provided with a second water tank; A connecting water pipe, wherein both ends of the connecting water pipe are fixedly connected to the bottom of the first water tank and the bottom of the second water tank respectively.

2. A surface tension testing device for a waterproof locking agent system for fracturing according to claim 1, characterized in that: The baffle is fixedly installed on one side of the top of the support platform, the two fixing plates are respectively fixedly installed on both sides of the outer surface of the baffle, and the two limiting plates are respectively fixedly installed on the other two sides of the outer surface of the baffle.

3. The surface tension testing device for a waterproof locking agent system for fracturing according to claim 1, characterized in that: A hydraulic cylinder is fixedly installed on the right side of the top of the workbench, a connecting plate is fixedly connected to the top end of the output shaft of the hydraulic cylinder, and a force sensor is fixedly installed on one side of the connecting plate.

4. A surface tension testing device for a waterproof locking agent system for fracturing according to claim 3, characterized in that: A hanging ring is provided at the bottom of the force-sensitive sensor, a hanging rope is provided at the bottom of the hanging ring, and a metal block is provided at the bottom of the hanging rope.

5. The surface tension testing device for a waterproof locking agent system for fracturing according to claim 1, characterized in that: The bottom end of the threaded rod is fixedly connected with an adjusting block.

6. The surface tension testing device for a waterproof locking agent system for fracturing according to claim 1, characterized in that: A first limiting plate is fixedly mounted on one side of the limiting platform, and a card slot is provided on one side of the first limiting plate.

7. The surface tension testing device for a waterproof locking agent system for fracturing according to claim 1, characterized in that: A second limiting plate is fixedly mounted on the other side of the limiting platform, and a receiving groove is provided on the surface of the second limiting plate.

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