Water distributor for water injection of oil well

Abstract

The utility model discloses an oil well water injection water distributor, and particularly relates to the technical field of oil well water injection water distributors, which comprises a water distributor body, a buffer component and a buffer component, the buffer component comprises a connecting cylinder, a fixing cylinder is arranged below the connecting cylinder, a connecting rod is arranged between the fixing cylinder and the connecting cylinder, and a first buffer spring is arranged at one end of the connecting rod. A second buffer spring is arranged at the other end of the connecting rod. The connecting cylinder fixedly connected to the bottom of the water distributor body and the fixing cylinder arranged below the connecting cylinder are utilized, the bottom of the water distributor body can be protected to a certain degree, and meanwhile the first buffer spring arranged in the connecting cylinder and the second buffer spring arranged in the fixing cylinder are utilized; the bottom of the water distributor body can be buffered and protected, when the bottom of the water distributor body makes contact with the bottom of an oil well, rigid contact between the bottom of the water distributor body and the bottom of the oil well can be further prevented, and therefore the service life of the water distributor body can be further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil well water injection distributors, in particular to an oil well water injection distributor. Background Art

[0002] In order to make the oil field continue to produce high and stable production and improve the ultimate recovery rate of the oil field, many oil fields at home and abroad use the method of injecting water into the oil layer to maintain the formation pressure and improve the recovery rate of the oil well. The water distributor is a special downhole tool used for quantitative water injection into each oil layer during stratified water injection. According to the requirements of the surrounding oil wells for the water injection volume, the water injection well distributes the water injection volume according to the properties of the oil layers in different layers. Commonly used water distributors are divided into two types, namely fixed and movable. The fixed type is that the entire water distributor is connected with the oil pipe and lowered into the well, while the movable type is just to connect the working tube with the oil pipe and lower it into the well, and the movable core can be thrown and fished at will.

[0003] The existing Chinese patent number CN219864967U discloses an oil well water injection distributor, including a tank body and a water distribution tank installed at the bottom of the tank body, wherein a mounting plate is movably installed inside the water distribution tank, and a plurality of baffles are installed at the bottom of the mounting plate near the edge, and the outer wall of the baffle abuts against the inner wall of the water distribution tank, and the outer wall of the water distribution tank is provided with a plurality of water distribution holes matching the baffles, and a plurality of water inlet holes are provided at the top of the mounting plate. The utility model has a plurality of baffles that block one end of the water distribution hole close to the inner wall of the water distribution tank, so as to prevent sewage and impurities inside the oil well from flowing into the inside of the water distribution tank through the water distribution hole.

[0004] Although the above-mentioned existing patent can realize the function of injecting water into the oil well, when the water distributor body enters the oil well, due to the deep depth of the oil well, the bottom of the water distributor body will collide with the bottom of the oil well. Although the existing water distributor device has the function of buffering the water distribution tank, there is no corresponding buffer component between the bottom of the water distributor body and the bottom of the oil well. In the long run, the service life of the water distributor will be reduced, and it will be inconvenient to use.

[0005] Therefore, we make improvements to this and propose an oil well water injection distributor. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] The utility model discloses an oil well water injection distributor, comprising a distributor body, a buffer assembly for buffering the distributor body fixedly connected to the bottom of the distributor body, the buffer assembly comprising a connecting cylinder, a fixing cylinder arranged below the connecting cylinder, a first installation cavity arranged inside the connecting cylinder, a second installation cavity arranged inside the fixing cylinder, a connecting rod arranged between the fixing cylinder and the connecting cylinder, a first buffer spring arranged at one end of the connecting rod, a second buffer spring arranged at the other end of the connecting rod, the first buffer spring arranged inside the connecting cylinder, and the second buffer spring arranged inside the fixing cylinder.

[0008] As a preferred technical solution of the utility model, the connecting tube is internally slidably connected with a first sliding plate, the bottom of the first sliding plate is fixedly connected to one end of the connecting rod, the top surface of the first sliding plate is fixedly connected to the bottom of the first buffer spring, the top of the first buffer spring is fixedly connected to the inner top surface of the first mounting cavity, a circular hole is opened at the bottom of the connecting tube, and the connecting rod is slidably connected to the circular hole.

[0009] As a preferred technical solution of the utility model, a second sliding plate is slidably connected inside the fixed cylinder, the top of the second sliding plate is fixedly connected to the bottom of the connecting rod, the bottom of the second sliding plate is fixedly connected to one end of the second buffer spring, the other end of the second buffer spring is fixedly connected to the inner bottom surface of the second mounting cavity, another circular hole is opened on the top of the fixed cylinder, and the connecting rod is slidably connected to the circular hole.

[0010] As a preferred technical solution of the utility model, air holes are provided on the outer walls of the connecting tube and the fixing tube, and a filter plate is detachably connected to the air holes.

[0011] As a preferred technical solution of the utility model, the air vent is provided with a mounting groove, the filter plate is fixedly connected in the mounting groove by a locking bolt, and the filter plate is provided with a filter hole.

[0012] As a preferred technical solution of the utility model, an irregular protrusion is arranged on the inner wall of the circular hole, and the protrusion is in sliding contact with the outer wall of the connecting rod.

[0013] The beneficial effect of the utility model is as follows: in the utility model, by setting the water distributor body, the oil well can be injected with water, and at the same time, the bottom of the water distributor body can be protected to a certain extent by using the connecting cylinder fixedly connected to the bottom of the water distributor body and the fixing cylinder arranged below the connecting cylinder, and at the same time, the bottom of the water distributor body can be buffered and protected by using the first buffer spring arranged inside the connecting cylinder and the second buffer spring arranged inside the fixing cylinder. When the bottom of the water distributor body contacts the bottom of the oil well, it can further prevent the bottom of the water distributor body from having a rigid contact with the bottom of the oil well, thereby further improving the service life of the water distributor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure of part A in the middle.

[0018] In the figure: 1. water distributor body; 2. connecting tube; 3. fixing tube; 4. mounting groove; 5. first mounting cavity; 6. second mounting cavity; 7. second sliding plate; 8. first sliding plate; 9. first buffer spring; 10. second buffer spring; 11. connecting rod; 12. air vent; 13. filter plate; 14. filter hole; 15. locking bolt. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] Example: Figures 1 to 3As shown, the utility model is an oil well water injection distributor, including a distributor body 1, a buffer assembly for buffering the distributor body 1 is fixedly connected to the bottom of the distributor body 1, the buffer assembly includes a connecting cylinder 2, a fixing cylinder 3 is arranged below the connecting cylinder 2, a first installation cavity 5 is arranged inside the connecting cylinder 2, a second installation cavity 6 is arranged inside the fixing cylinder 3, a connecting rod 11 is arranged between the fixing cylinder 3 and the connecting cylinder 2, a first buffer spring 9 is arranged at one end of the connecting rod 11, a second buffer spring 10 is arranged at the other end of the connecting rod 11, the first buffer spring 9 is arranged inside the connecting cylinder 2, and the second buffer spring 10 is arranged inside the fixing cylinder 3.

[0021] By utilizing the first buffer spring 9 provided in the first installation cavity 5 and the second buffer spring 10 provided in the second installation cavity 6 , it is easier to provide buffer protection for the bottom of the water distributor body 1 , thereby further reducing the probability of damage to the bottom of the water distributor body 1 and increasing the service life of the water distributor body 1 .

[0022] The connecting tube 2 is internally slidably connected with a first sliding plate 8, the bottom of the first sliding plate 8 is fixedly connected to one end of a connecting rod 11, the top surface of the first sliding plate 8 is fixedly connected to the bottom of a first buffer spring 9, the top of the first buffer spring 9 is fixedly connected to the inner top surface of the first mounting cavity 5, a circular hole is provided at the bottom of the connecting tube 2, and the connecting rod 11 is slidably connected to the circular hole.

[0023] A second sliding plate 7 is slidably connected inside the fixed cylinder 3, the top of the second sliding plate 7 is fixedly connected to the bottom of the connecting rod 11, the bottom of the second sliding plate 7 is fixedly connected to one end of the second buffer spring 10, the other end of the second buffer spring 10 is fixedly connected to the inner bottom surface of the second mounting cavity 6, another circular hole is opened at the top of the fixed cylinder 3, and the connecting rod 11 is slidably connected to the circular hole.

[0024] By utilizing the first buffer spring 9 and the second buffer spring 10 disposed inside the first installation cavity 5 and the second installation cavity 6 , it is easier to buffer the rigid contact force generated between the water distributor body 1 and the bottom of the oil well, thereby achieving the purpose of buffering the water distributor body 1 .

[0025] The outer walls of the connecting tube 2 and the fixed tube 3 are both provided with air holes 12, and a filter plate 13 is detachably connected to the air holes 12. By utilizing the air holes 12 provided on the outer walls of the fixed tube 3 of the connecting tube 2, it is easier to reduce the damping pressure generated between the first sliding plate 8 and the second sliding plate 7 and the inner walls of the connecting tube 2 and the fixed tube 3, making it more convenient to use.

[0026] The vent hole 12 is provided with a mounting groove 4, and the filter plate 13 is fixedly connected in the mounting groove 4 by a locking bolt 15. The filter plate 13 is provided with a filter hole 14. By utilizing the mounting groove 4 provided in the vent hole 12, the filter plate 13 can be installed more conveniently.

[0027] An irregular convex block is arranged on the inner wall of the circular hole, and the convex block is in sliding contact with the outer wall of the connecting rod 11. By utilizing the convex block arranged on the inner wall of the circular hole, it is easier to compensate for the elastic potential energy generated by the first buffer spring 9 and the second buffer spring 10, and it is more convenient to use.

[0028] During operation, when it is necessary to use the water distributor body 1 to inject water into the oil well, the water distributor body 1 is placed in the oil well and then slowly moved to the bottom of the oil well. When the bottom of the fixed cylinder 3 contacts the bottom of the oil well, the second buffer spring 10 inside the second mounting cavity 6 will move downward. At this time, the first sliding plate 8 moves downward inside the first mounting cavity 5. The elastic potential energy generated by the first buffer spring 9 and the second buffer spring 10 can be used to buffer and protect the water distributor body 1.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An oil well water injection distributor, comprising a distributor body (1), characterized in that: A buffer assembly for buffering the water distributor body (1) is fixedly connected to the bottom of the water distributor body (1), the buffer assembly comprising a connecting cylinder (2), a fixing cylinder (3) being arranged below the connecting cylinder (2), a first installation cavity (5) being arranged inside the connecting cylinder (2), a second installation cavity (6) being arranged inside the fixing cylinder (3), a connecting rod (11) being arranged between the fixing cylinder (3) and the connecting cylinder (2), a first buffer spring (9) being arranged at one end of the connecting rod (11), a second buffer spring (10) being arranged at the other end of the connecting rod (11), the first buffer spring (9) being arranged inside the connecting cylinder (2), and the second buffer spring (10) being arranged inside the fixing cylinder (3).

2. The oil well water injection distributor according to claim 1, characterized in that: A first sliding plate (8) is slidably connected inside the connecting tube (2); the bottom of the first sliding plate (8) is fixedly connected to one end of a connecting rod (11); the top surface of the first sliding plate (8) is fixedly connected to the bottom of a first buffer spring (9); the top of the first buffer spring (9) is fixedly connected to the inner top surface of the first mounting cavity (5); a circular hole is formed at the bottom of the connecting tube (2); and the connecting rod (11) is slidably connected to the circular hole.

3. The oil well water injection distributor according to claim 2, characterized in that: A second sliding plate (7) is slidably connected inside the fixed cylinder (3); the top of the second sliding plate (7) is fixedly connected to the bottom of the connecting rod (11); the bottom of the second sliding plate (7) is fixedly connected to one end of a second buffer spring (10); the other end of the second buffer spring (10) is fixedly connected to the inner bottom surface of the second mounting cavity (6); another circular hole is opened at the top of the fixed cylinder (3); the connecting rod (11) is slidably connected to the circular hole.

4. The oil well water injection distributor according to claim 1, characterized in that: The outer walls of the connecting cylinder (2) and the fixing cylinder (3) are both provided with air holes (12), and a filter plate (13) is detachably connected to the air holes (12).

5. The oil well water injection distributor according to claim 4, characterized in that: The air vent (12) is provided with a mounting groove (4), the filter plate (13) is fixedly connected to the mounting groove (4) via a locking bolt (15), and the filter plate (13) is provided with a filter hole (14).

6. The oil well water injection distributor according to claim 3, characterized in that: A protrusion is provided on the inner wall of the circular hole, and the protrusion is in sliding contact with the outer wall of the connecting rod (11).

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