An experimental device for evaluating the sand control effect of sand control pipes

Abstract

This utility model relates to the technical field of experimental equipment for oil extraction, and in particular to an experimental device for evaluating the sand control effect of sand control pipes. The device includes a body with an experimental groove on its surface and a slot vertically formed on its upper surface. A plate is vertically slidably inserted into the slot, and a mounting plate is fixedly installed at the top of the plate. A threaded rod is horizontally rotatably mounted on the surface of the mounting plate, and a slider is threaded onto the threaded rod. A pressure plate is fixedly installed at one end of the slider. A U-shaped plate is fixedly installed on the back of the body. The slider's rotation is restricted by a limiting component, and the plate is locked by a locking assembly. Through the cooperation of the threaded rod, pressure plate, and mounting plate, the clamping and fixing of sand control pipes of different sizes can be quickly and easily completed, improving experimental efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of experimental equipment for oil extraction, and in particular to an experimental device for evaluating the sand control effect of sand control pipes. Background Technology

[0002] During oil extraction, sand control pipes can block sand particles outside the pipe, ensuring smooth pipeline flow and guaranteeing the continuity of oil extraction. However, the produced sand control pipes cannot be directly applied to the field and must undergo indoor testing and evaluation to determine whether their sand control effect is up to standard.

[0003] Existing evaluation test devices require clamping both ends of the sand control pipe and immersing it in formation sand test material before conducting experiments by controlling simulated formation fluid circulation. Since the sand control pipes to be tested vary in size, the evaluation test device cannot quickly clamp and fix spinning pipes of different sizes. Utility Model Content

[0004] The purpose of this invention is to address the following shortcomings in the existing technology: when conducting experiments on sand-proof pipes, existing evaluation test devices require clamping both ends of the pipe. Since the sand-proof pipes to be tested vary in size, the evaluation test devices cannot quickly clamp and fix spinning pipes of different sizes. Therefore, this invention proposes an evaluation test device for the sand-proof effect of sand-proof pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An experimental device for evaluating the sand control effect of a sand control pipe includes a body, an experimental groove on the surface of the body, a slot vertically formed on the upper surface of the body, an L-shaped insert plate vertically slidably inserted into the slot, an L-shaped mounting plate fixedly installed at the top of the insert plate, a threaded rod horizontally rotatably mounted on the surface of the mounting plate, a slider threaded onto the threaded rod, and a pressure plate fixedly installed at one end of the slider. A U-shaped plate is fixedly installed on the back of the machine body. The slider is restricted from rotation by a limiting component. The insert plate is locked by a locking component. Multiple water pipes are fixedly installed on the left and right side walls of the machine body. A circulation component is provided on the upper surface of the U-shaped plate. The circulation component is used to control the circulation of simulated formation fluid in the multiple water pipes.

[0006] Preferably, the limiting component includes a limiting rod that is horizontally fixedly mounted on the surface of the mounting plate, and the slider is slidably sleeved on the limiting rod.

[0007] Preferably, the mounting plate and the pressure plate are both bonded with an anti-slip layer on their adjacent sides, and the anti-slip layer is made of rubber.

[0008] Preferably, the circulation component includes a circulation pump fixedly mounted on the upper surface of the U-shaped plate, and multiple water pipes are respectively fixedly connected to the inlet and outlet of the circulation pump.

[0009] Preferably, the locking assembly includes a locking rod, the surface of the U-shaped plate has a through-hole, the locking rod is slidably inserted into the through-hole, the surface of the insert plate has two locking holes for the end of the locking rod to pass through, one end of the locking rod is fixedly mounted with an mounting block, and a telescopic spring is sleeved on the locking rod, the two ends of the telescopic spring are fixedly connected to the mounting block and the U-shaped plate respectively.

[0010] Preferably, both the upper and lower surfaces of the mounting plate are fixedly mounted with protrusions, and the longitudinal section of the protrusions is an isosceles triangle.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The use of threaded rods, pressure plates, and mounting plates allows for quick and easy clamping and fixing of sand-proof pipes of different sizes, improving experimental efficiency. Attached Figure Description

[0012] Figure 1 This is a frontal three-dimensional structural diagram of an experimental device for evaluating the sand-proofing effect of a sand-proof pipe proposed in this utility model; Figure 2 This is a top-view three-dimensional structural diagram of an experimental device for evaluating the sand-proofing effect of a sand-proof pipe proposed in this utility model; Figure 3 This is a side perspective structural diagram of an experimental device for evaluating the sand-proofing effect of a sand-proof pipe proposed in this utility model; Figure 4 This is a side three-dimensional structural diagram of the insertion plate and mounting plate in the sand-proofing effect evaluation experimental device of the sand-proofing pipe proposed in this utility model; Figure 5 for Figure 2 Enlarged view of the structure at point A in the middle.

[0013] In the diagram: 1. Body, 2. Experimental tank, 3. Insert plate, 4. Mounting plate, 5. Threaded rod, 6. Slider, 7. Pressure plate, 8. Water pipe, 9. Limiting rod, 10. U-shaped plate, 11. Circulation pump, 12. Locking rod, 13. Locking port, 14. Telescopic spring, 15. Protrusion. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0016] Reference Figures 1-5 An experimental device for evaluating the sand control effect of a sand control pipe includes a body 1. An experimental groove 2 is formed on the surface of the body 1. The experimental groove 2 is filled with stratum sand experimental material. A slot is vertically formed on the upper surface of the body 1. An L-shaped insert plate 3 is vertically slidably inserted into the slot. An L-shaped mounting plate 4 is fixedly installed on the top of the insert plate 3. A threaded rod 5 is horizontally rotatably installed on the surface of the mounting plate 4. A slider 6 is threaded onto the threaded rod 5. A pressure plate 7 is fixedly installed on one end of the slider 6.

[0017] A U-shaped plate 10 is fixedly installed on the back of the body 1. The slider 6 is restricted from rotating by a limiting component, which includes a limiting rod 9 horizontally fixedly installed on the surface of the mounting plate 4. The slider 6 is slidably sleeved on the limiting rod 9. The insert plate 3 is locked by a locking component. Multiple water pipes 8 are fixedly installed on the left and right side walls of the body 1. A circulation component is provided on the upper surface of the U-shaped plate 10. The circulation component is used to control the circulation of simulated formation fluid in the multiple water pipes 8. The circulation component includes a circulation pump 11 fixedly installed on the upper surface of the U-shaped plate 10 (the circulation pump 11 is prior art, and its working principle will not be described in detail here). The multiple water pipes 8 are fixedly connected to the inlet and outlet of the circulation pump 11, respectively.

[0018] First, place one end of the sand-proof pipe to be tested against the surface of the mounting plate 4. Then, by rotating the threaded rod 5, the slider 6 threaded onto the threaded rod 5 will move laterally horizontally with the pressure plate 7 under the restriction of the limiting rod 9 until the surface of the pressure plate 7 is tightly against the end of the sand-proof pipe away from the mounting plate 4, thus completing the clamping and fixing of the sand-proof pipe. At this time, control the insert plate 3 to move down with the mounting plate 4 and the clamped sand-proof pipe, so that the sand-proof pipe is immersed in the formation sand experimental material in the experimental tank 2. Then, lock the insert plate 3 by locking the locking component. At this time, start the circulation pump 11, control the simulated formation fluid to enter the multiple water pipes 8 from the outlet end and enter the formation sand experimental material in the experimental tank 2, and then enter the circulation pump 11 from the inlet end of the multiple water pipes 8 to form a circulation.

[0019] After the experiment, the locking component is released from the locking of the insert plate 3. Then, the insert plate 3 is controlled to move upward with the sand-proof pipe until the sand-proof pipe is removed from the formation sand test material. At this time, the clamping of the sand-proof pipe is released, and it is removed. The presence of formation sand test material inside is observed to determine whether the sand-proof effect of the sand-proof pipe is qualified.

[0020] The mounting plate 4 and the pressure plate 7 are both bonded with anti-slip layers on their adjacent sides. The anti-slip layers are made of rubber.

[0021] The rubber anti-slip layer has good elasticity and adhesion, which can increase the friction between the mounting plate 4 and the pressure plate 7 and the end contact surface of the sandproof pipe, and at the same time avoid wear on the end of the sandproof pipe due to clamping and pressing.

[0022] The locking assembly includes a locking rod 12. A through hole is provided on the surface of the U-shaped plate 10. The locking rod 12 is slidably inserted into the through hole. Two locking holes 13 are provided on the surface of the insert plate 3 for the end of the locking rod 12 to pass through. A mounting block is fixedly installed on one end of the locking rod 12. A telescopic spring 14 is sleeved on the locking rod 12. The two ends of the telescopic spring 14 are fixedly connected to the mounting block and the U-shaped plate 10, respectively.

[0023] When the insert plate 3 is at its highest position, the locking rod 12 will correspond to the position of the locking port 13 located below. Then, the end of the locking rod 12 is inserted into the locking port 13 to lock the insert plate 3. When the locking rod 12 is moved, the telescopic spring 14 is stretched until the locking rod 12 moves out of the locking port 13 to release the lock on the insert plate 3. Then, the insert plate 3 is moved down until it reaches the bottom. The locking port 13 located above will correspond to the position of the end of the locking rod 12. Then, the locking rod 12 is released. The locking rod 12 will move and reset quickly under the elastic potential energy of the telescopic spring 14, and the end will be inserted into the locking port 13, thereby locking the insert plate 3. This prevents the insert plate 3 from being impacted and moving vertically with the sand-proof pipe during the simulated formation fluid circulation process, ensuring the stability of the experimental process.

[0024] The upper and lower surfaces of the mounting plate 4 are both fixedly mounted with protrusions 15, and the longitudinal section of the protrusions 15 is an isosceles triangle.

[0025] The lower protrusion 15 is to allow the mounting plate 4 to be more easily immersed in the formation sand test material, while the upper protrusion 15 is to prevent some formation sand test material from accumulating on the surface of the mounting plate 4 when it is removed from the formation sand test material.

[0026] In this invention, one end of the sand-proof pipe to be tested is first placed against the surface of the mounting plate 4. Then, by rotating the threaded rod 5, the slider 6 threaded onto the threaded rod 5 will move laterally horizontally with the pressure plate 7 under the restraint of the limiting component until the surface of the pressure plate 7 is tightly against the end of the sand-proof pipe away from the mounting plate 4, thus completing the clamping and fixing of the sand-proof pipe. At this time, the insert plate 3 is controlled to move down with the mounting plate 4 and the clamped sand-proof pipe, so that the sand-proof pipe is immersed in the formation sand experimental material in the experimental tank 2. The insert plate 3 is then locked by the locking component, and the experiment can be carried out. This method can quickly complete the clamping and fixing of sand-proof pipes of different sizes, which is convenient, fast, and improves the efficiency of the experiment.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for evaluating the sand control effect of a sand control pipe, comprising a machine body (1), characterized in that, The surface of the body (1) is provided with an experimental groove (2), and the upper surface of the body (1) is provided with a slot. An L-shaped insert plate (3) is vertically slidably inserted into the slot. An L-shaped mounting plate (4) is fixedly installed at the top of the insert plate (3). A threaded rod (5) is horizontally rotatably installed on the surface of the mounting plate (4). A slider (6) is threaded onto the threaded rod (5). A pressure plate (7) is fixedly installed at one end of the slider (6). A U-shaped plate (10) is fixedly installed on the back of the body (1). The slider (6) is restricted from rotating by a limiting component. The insert plate (3) is locked by a locking component. Multiple water pipes (8) are fixedly installed on the left and right side walls of the body (1). A circulation component is provided on the upper surface of the U-shaped plate (10). The circulation component is used to control the circulation of simulated formation fluid in the multiple water pipes (8).

2. The sand control pipe sand prevention effect evaluation experiment device according to claim 1, characterized in that, The limiting component includes a limiting rod (9) that is horizontally fixed on the surface of the mounting plate (4), and the slider (6) is slidably sleeved on the limiting rod (9).

3. The sand control pipe sand prevention effect evaluation experiment device according to claim 1, characterized in that, The mounting plate (4) and the pressure plate (7) are both bonded with anti-slip layers on their adjacent sides, and the anti-slip layers are made of rubber.

4. The sand control pipe sand prevention effect evaluation experiment device according to claim 1, characterized in that, The circulation component includes a circulation pump (11) fixedly installed on the upper surface of the U-shaped plate (10), and multiple water pipes (8) are fixedly connected to the inlet and outlet of the circulation pump (11) respectively.

5. The sand control pipe sand prevention effect evaluation experiment device according to claim 1, characterized in that, The locking assembly includes a locking rod (12), and the surface of the U-shaped plate (10) is provided with a through hole. The locking rod (12) is slidably inserted into the through hole. The surface of the insert plate (3) is provided with two locking holes (13) for the end of the locking rod (12) to pass through. One end of the locking rod (12) is fixedly installed with an installation block. A telescopic spring (14) is sleeved on the locking rod (12). The two ends of the telescopic spring (14) are fixedly connected to the installation block and the U-shaped plate (10) respectively.

6. The experimental device for evaluating the sand control effect of a sand control pipe according to claim 1, characterized in that, The mounting plate (4) has protrusions (15) fixedly installed on both the upper and lower surfaces. The longitudinal section of the protrusions (15) is an isosceles triangle.

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