Sand prevention spiral gas anchor

Abstract

The utility model discloses a sand prevention spiral gas anchor, which relates to the technical field of spiral gas anchors, and comprises an anchor cylinder and a vibration component, the bottom of the anchor cylinder is provided with a lower joint, the top of the lower joint is connected with an upper joint, and a spiral device is arranged in the anchor cylinder. The vibration assembly used for preventing a sand outlet of the spiral device from being blocked is installed on the outer wall of the spiral device and comprises a vibration lining pipe, a push spring, a rail and a push block, the push spring is fixedly installed at the top of the vibration lining pipe, the rail is spirally arranged on the right side of the top of the vibration lining pipe, and the push block is slidably arranged on the outer wall of the rail. The right side of the push block is fixed to the inner wall of the anchor cylinder, a sliding seat is slidably arranged on the outer wall of the limiting block, and the side, away from the limiting block, of the sliding seat is fixed to the anchor cylinder. According to the sand prevention spiral gas anchor, blocked sand can be removed in the using process, and meanwhile the impact force generated by the device to the lower connector in the using process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of screw gas anchors, in particular to a sand prevention screw gas anchor. Background Technique

[0002] The function of the gas anchor is to separate part of the gas before the downhole fluid enters the pump, reduce the influence of the gas on the pump, and improve the pump efficiency. The gas anchor is installed at the inlet of the pump to separate part of the gas in the oil before it enters the pump and reduce the gas entering the pump barrel.

[0003] For example, the patent document with the application number CN202020669391.7 discloses a spiral gas sand anchor that is easy to clean. This spiral gas sand anchor that is easy to clean has a buffer mechanism designed to buffer the sealing ring, reduce the load on the sealing ring, and help extend the service life of the sealing ring; through the designed fixing mechanism, it helps to fasten the hollow ring. However, this spiral gas sand anchor that is easy to clean is prone to block the discharge port due to sand and gravel during use, resulting in sediment blockage and affecting the normal operation in the later stage.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a sand prevention screw gas anchor is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sand prevention screw gas anchor to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sand prevention screw gas anchor, including an anchor barrel and a vibration assembly. A lower joint is installed at the bottom of the anchor barrel, and an upper joint is connected to the top of the lower joint. A spiral device is arranged inside the anchor barrel, and the vibration assembly for preventing the sand outlet of the spiral device from being blocked is installed on the outer wall of the spiral device. The vibration assembly includes a vibration liner, a push spring, a track, and a push block. A push spring is fixedly installed at the top of the vibration liner, and a track is spirally arranged on the right side of the top of the vibration liner. A push block is slidably arranged on the outer wall of the track, and the right side of the push block is fixed to the inner wall of the anchor barrel.

[0007] Preferably, limiting blocks are fixedly installed on both sides of the outer wall of the vibration liner, and the overall shape of the limiting blocks is set in a "long strip" structure.

[0008] Preferably, a sliding seat is slidably arranged on the outer wall of the limiting block, and the side of the sliding seat away from the limiting block is fixed to the anchor barrel.

[0009] Preferably, an activity groove is opened at the bottom of the vibration liner, and a spring is fixedly installed inside the activity groove.

[0010] Preferably, a buffer block is fixedly installed at the end of the spring, and the overall buffer block is arranged in a "ring" shape structure.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The sand control spiral gas anchor can not only remove the blocked sand and gravel during use, but also reduce the impact force generated on the lower joint when the device is in use.

[0012] 1. Through the setting of the vibration assembly of the present utility model, when the vibration liner or the anchor barrel rotates, the track pushes the vibration liner upward along the push block. When the push block moves to the end of the track, the push spring pushes the vibration liner to reset and generates vibration, and shears the sand outlet of the screw or removes the blocked sand and gravel on the screw through vibration, so as to achieve the purpose of removing the blocked sand and gravel during use and preventing blockage;

[0013] 2. Through the setting of the movable groove cooperating with the buffer block of the present utility model, when the vibration liner vibrates up and down, the buffer block squeezes the spring, and the spring weakens the impact force of the buffer block, and the frictional force generated when the buffer block moves with the movable groove reduces the reciprocating impact force of the spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0015] Figure 2 is a schematic cross-sectional structure diagram of the anchor barrel of the present utility model;

[0016] Figure 3 is a schematic structure diagram of the vibration assembly of the present utility model;

[0017] Figure 4 is of the present utility model Figure 3 is an enlarged structure diagram of part A in the present utility model.

[0018] In the figure: 1, anchor barrel; 2, lower joint; 3, upper joint; 4, screw; 5, vibration assembly; 501, vibration liner; 502, push spring; 503, track; 504, push block; 6, limit block; 7, sliding seat; 8, movable groove; 9, spring; 10, buffer block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0020] Such as Figures 1-3As shown in the figure, a sand control spiral gas anchor includes an anchor barrel (1) and a vibration assembly (5). It is characterized in that a lower joint (2) is installed at the bottom of the anchor barrel 1, and an upper joint (3) is connected to the top of the lower joint (2). A spiral device (4) is arranged inside the anchor barrel 1. A vibration assembly (5) for preventing the sand outlet of the spiral device (4) from being blocked is installed on the outer wall of the spiral device (4). The vibration assembly (5) includes a vibration liner (501), a push spring (502), a track (503) and a push block (504). The push spring (502) is fixedly installed at the top of the vibration liner (501), and the track (503) is spirally arranged on the right side of the top of the vibration liner (501). The push block (504) is slidably arranged on the outer wall of the track (503), and the right side of the push block (504) is fixed to the inner wall of the anchor barrel 1.

[0021] When the vibration liner (501) or the anchor barrel 1 rotates, the track (503) pushes the vibration liner (501) to move upward along the push block (504). When the push block (504) moves to the end of the track (503), the push spring (502) pushes the vibration liner (501) to reset and generates vibration, and shears the sand outlet of the spiral device (4) or clears the blocked sand and gravel on the spiral device (4) through vibration, ensuring the long-term normal operation of the device.

[0022] As Figure 4 shown, limiting blocks (6) are fixedly installed on both sides of the outer wall of the vibration liner (501), and the overall shape of the limiting blocks (6) is set in a "long strip" structure.

[0023] The limiting blocks (6) prevent the vibration liner (501) from rotating during operation.

[0024] Furthermore, a sliding seat (7) is slidably arranged on the outer wall of the limiting block (6), and the side of the sliding seat (7) away from the limiting block (6) is fixed to the anchor barrel 1.

[0025] The sliding seat (7) is used to limit the limiting block (6) on the inner wall of the anchor barrel 1.

[0026] Furthermore, a movable groove (8) is opened at the bottom of the vibration liner (501), and a spring (9) is fixedly installed inside the movable groove (8).

[0027] The spring (9) is used to push the vibration liner (501) that has moved upward to reset.

[0028] Furthermore, a buffer block (10) is fixedly installed at the end of the spring (9), and the overall shape of the buffer block (10) is set in a "ring" structure.

[0029] The buffer block (10) reduces the impact of the vibration liner (501) on the lower joint (2).

[0030] Working principle: When using this sand control spiral gas anchor, first,

[0031] Embodiment 1: When the vibrating liner 501 or the anchor barrel 1 rotates, the track 503 pushes the vibrating liner 501 upward along the push block 504. When the push block 504 moves to the end of the track 503, the push spring 502 pushes the vibrating liner 501 to reset and generates vibration, and cuts the sand outlet of the screw conveyor 4 or removes the blocked sand and gravel on the screw conveyor 4 through vibration.

[0032] Embodiment 2: When the vibrating liner 501 vibrates up and down, the buffer block 10 squeezes the spring 9, and the spring 9 weakens the impact force on the buffer block 10. Moreover, the frictional force generated when the buffer block 10 moves in the movable groove 8 reduces the reciprocating impact force of the spring 9. This is the working principle of the sand control screw gas anchor.

Claims

1. A sand control spiral gas anchor, comprising an anchor barrel (1) and a vibration assembly (5), characterized in that, A lower joint (2) is installed at the bottom of the anchor tube (1), and an upper joint (3) is connected to the top of the lower joint (2). A screw conveyor (4) is arranged inside the anchor tube (1). A vibration assembly (5) for preventing the sand outlet of the screw conveyor (4) from being blocked is installed on the outer wall of the screw conveyor (4). The vibration assembly (5) includes a vibration liner (501), a push spring (502), a track (503) and a push block (504). A push spring (502) is fixedly installed at the top of the vibration liner (501), and a track (503) is spirally arranged on the right side of the top of the vibration liner (501). A push block (504) is slidably arranged on the outer wall of the track (503), and the right side of the push block (504) is fixed to the inner wall of the anchor tube (1).

2. The sand control spiral gas anchor according to claim 1, characterized in that, Limiting blocks (6) are fixedly installed on both sides of the outer wall of the vibration liner (501), and the overall shape of the limiting blocks (6) is "long strip" shaped.

3. The sand control spiral gas anchor according to claim 2, characterized in that, A sliding seat (7) is slidably arranged on the outer wall of the limiting block (6), and the side of the sliding seat (7) away from the limiting block (6) is fixed to the anchor tube (1).

4. The sand control spiral gas anchor according to claim 1, characterized in that, An activity groove (8) is formed at the bottom of the vibration liner (501), and a spring (9) is fixedly installed inside the activity groove (8).

5. The sand control spiral gas anchor according to claim 4, characterized in that, A buffer block (10) is fixedly installed at the end of the spring (9), and the overall shape of the buffer block (10) is "ring" shaped.

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