An integrated non-welded swirl centralizer

Abstract

The utility model discloses an integrated non-welded swirl straightener, comprising: a straightener inner tube body, an upper connecting tube seat fixedly connected above the straightener inner tube body, an upper sealing gasket embedded above the upper connecting tube seat; the utility model installs the upper sealing gasket and the lower sealing gasket on both sides of the upper connecting tube seat and the lower connecting tube seat, so that a good sealing effect can be achieved during connection, and a good anti-slip and anti-loosening effect can also be achieved, and such a structure can conveniently disassemble and replace the upper sealing gasket and the lower sealing gasket, and the buffer ball is limited inside the ball embedding groove by a limiting clamp ring, and multiple groups of buffer balls are fitted to the external surface to effectively reduce the friction effect during straightening, and during rotation, the gap between the ball embedding groove and the buffer ball is filled by multiple groups of auxiliary small balls inside, so that the buffer ball can have a better rolling effect and lower friction when rolling.

Description

Technical Field

[0001] The utility model relates to the technical field of centralizer equipment, in particular to an integrated non-welded swirl centralizer. Background Art

[0002] The swirl spiral centralizer is a key component used in downhole operations, especially in oilfield drilling and casing installation. Its main function is to help the casing or drill bit stay centered in the wellbore to ensure the accuracy and safety of the drilling operation. One of them is the one-piece non-welded swirl spiral centralizer manufactured by casting. However, the existing one-piece non-welded swirl spiral centralizer cannot be well sealed and connected during use, which makes it inconvenient to use. Utility Model Content

[0003] The purpose of the utility model is to provide an integrated non-welded swirl centralizer to solve the problem that the existing integrated non-welded swirl spiral centralizer cannot be well sealed and connected during use, which is inconvenient.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an integrated non-welded vortex centralizer, comprising: an inner tube body of the centralizer, an upper connecting tube seat is fixedly connected to the upper part of the inner tube body of the centralizer, an upper sealing gasket is embedded above the upper connecting tube seat, a lower connecting tube seat is fixedly connected to the lower part of the inner tube body of the centralizer, and a lower sealing gasket is embedded below the lower connecting tube seat, a spiral centralizer block is fixedly connected to the outer side of the inner tube body of the centralizer, an inner spiral strip is fixedly arranged inside the inner tube body of the centralizer, an upper sealing gasket embedding groove is opened inside the upper part of the upper connecting tube seat, a lower sealing gasket embedding groove is opened inside the lower part of the lower connecting tube seat, a ball embedding groove is opened at one end of the spiral centralizer block, a limiting clamping ring is fixedly connected to the outer side of the ball embedding groove, a buffer ball is movably embedded in the ball embedding groove, and an auxiliary small ball is movably embedded between the buffer balls in the ball embedding groove.

[0005] As a further solution of the utility model: the upper sealing gasket includes an upper sealing gasket connecting ring, one end of the upper sealing gasket connecting ring is fixedly connected to an upper sealing gasket clamping ring, and the other end of the upper sealing gasket connecting ring is fixedly connected to an upper sealing gasket outer pad.

[0006] As a further solution of the utility model: the lower connecting pipe seat includes a lower sealing gasket connecting ring, one end of the lower sealing gasket connecting ring is fixedly connected to a lower sealing gasket clamping ring, and the other end of the lower sealing gasket connecting ring is fixedly connected to a lower sealing gasket outer pad.

[0007] As a further solution of the utility model: an upper outer connecting thread is provided on the upper outer side of the upper connecting pipe seat, and a lower inner connecting thread is provided on the lower inner side of the lower connecting pipe seat.

[0008] As a further solution of the utility model: the number of the spiral straightening blocks is set to three groups, the number of the ball embedding grooves, the limiting clamps, the buffer balls and the auxiliary small balls are all set to multiple groups, and the number of the inner spiral strips is set to three groups.

[0009] As a further solution of the utility model: the specifications of the upper sealing gasket embedding groove are adapted to the upper sealing gasket connecting ring and the upper sealing gasket clamping ring, and the specifications of the lower sealing gasket embedding groove are adapted to the lower sealing gasket connecting ring and the lower sealing gasket clamping ring.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model installs the upper sealing gasket and the lower sealing gasket on both sides of the upper connecting pipe seat and the lower connecting pipe seat, which can achieve a good sealing effect when connected, and can also achieve a good anti-slip and anti-loosening effect. Such a structure can conveniently disassemble and replace the upper sealing gasket and the lower sealing gasket, and the buffer ball is limited in the ball embedding groove by the limiting clamp ring. Multiple groups of buffer balls fit the external surface and can effectively reduce the friction effect when straightening. During rotation, the gap between the ball embedding groove and the buffer ball is filled by multiple groups of auxiliary small balls inside, which can make the buffer balls roll better and have lower friction when rolling. The internal spiral strips arranged inside the inner tube body of the straightener can achieve a good flow diversion effect, and the eddy current and turbulence in the fluid are reduced by changing the movement mode of the fluid to increase the flow rate. In this way, the swirl spiral straightener is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of an integrated non-welded swirl centralizer described in the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the cross section of the centralizer tube body at point A in the one-piece non-welded swirl centralizer described in the utility model;

[0014] Figure 3 It is a schematic diagram of the cross-sectional internal structure of a centralizer tube body in an integrated non-welded swirl centralizer described in the utility model;

[0015] Figure 4 It is a structural schematic diagram of an upper sealing gasket in an integrated non-welded swirl centralizer described in the utility model;

[0016] Figure 5 It is a structural schematic diagram of a lower connecting pipe seat in an integrated non-welded swirl centralizer described in the utility model.

[0017] In the figure: 1. inner tube body of the centralizer; 2. upper connecting pipe seat; 3. upper sealing gasket; 4. lower connecting pipe seat; 5. lower sealing gasket; 6. spiral centralizing block; 7. ball embedding groove; 8. inner spiral strip; 9. upper sealing gasket embedding groove; 10. lower sealing gasket embedding groove; 11. upper sealing gasket connecting ring; 12. upper sealing gasket clamping ring; 13. upper sealing gasket outer pad; 14. lower sealing gasket connecting ring; 15. lower sealing gasket clamping ring; 16. lower sealing gasket outer pad; 17. upper outer connecting thread; 18. lower inner connecting thread; 19. limit clamping ring; 20. buffer ball; 21. auxiliary small ball. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0020] Reference Figures 1 to 5In the embodiment of the utility model, an integrated non-welded swirl centralizer includes: a centralizer inner tube body 1, an upper connecting tube seat 2 is fixedly connected above the centralizer inner tube body 1, an upper sealing gasket 3 is embedded above the upper connecting tube seat 2, a lower connecting tube seat 4 is fixedly connected below the centralizer inner tube body 1, a lower sealing gasket 5 is embedded below the lower connecting tube seat 4, a spiral centralizing block 6 is fixedly connected to the outer side of the centralizer inner tube body 1, an inner spiral strip 8 is fixed inside the centralizer inner tube body 1, and the spiral centralizing blocks 6 are arranged in three groups, a ball embedding groove 7, a limit There are multiple groups of clamping rings 19, buffer balls 20 and auxiliary small balls 21, three groups of inner spiral strips 8, an upper sealing gasket embedding groove 9 is opened inside the upper connecting pipe seat 2, a lower sealing gasket embedding groove 10 is opened inside the lower connecting pipe seat 4, a ball embedding groove 7 is opened at one end of the spiral straightening block 6, the inner and outer sides of the ball embedding groove 7 are fixedly connected to the limiting clamping ring 19, the buffer balls 20 are movably embedded in the ball embedding groove 7, and auxiliary small balls 21 are movably embedded in the ball embedding groove 7 between the buffer balls 20.

[0021] The upper sealing gasket 3 includes an upper sealing gasket connecting ring 11, one end of the upper sealing gasket connecting ring 11 is fixedly connected to an upper sealing gasket clamping ring 12, and the other end of the upper sealing gasket connecting ring 11 is fixedly connected to an upper sealing gasket outer pad 13, the lower connecting pipe seat 4 includes a lower sealing gasket connecting ring 14, one end of the lower sealing gasket connecting ring 14 is fixedly connected to a lower sealing gasket clamping ring 15, and the other end of the lower sealing gasket connecting ring 14 is fixedly connected to a lower sealing gasket outer pad 16, the specifications of the upper sealing gasket groove 9 are adapted to the upper sealing gasket connecting ring 11 and the upper sealing gasket clamping ring 12, and the specifications of the lower sealing gasket groove 10 are adapted to the lower sealing gasket connecting ring 14 and the lower sealing gasket clamping ring 15.

[0022] By adopting the above scheme: by forcibly pressing the upper sealing gasket connecting ring 11 and the upper sealing gasket clamping ring 12 into the upper sealing gasket embedding groove 9, and forcibly pressing the lower sealing gasket connecting ring 14 and the lower sealing gasket clamping ring 15 into the lower sealing gasket embedding groove 10, the upper sealing gasket 3 and the lower sealing gasket 5 can be installed on both sides of the upper connecting tube seat 2 and the lower connecting tube seat 4 respectively.

[0023] An upper outer connection thread 17 is provided on the upper outer side of the upper connection pipe seat 2 , and a lower inner connection thread 18 is provided on the lower inner side of the lower connection pipe seat 4 .

[0024] By adopting the above solution, the upper external connection thread 17 and the lower internal connection thread 18 can be connected to the working structure.

[0025] The working principle of the utility model is: first, the upper external connection thread 17 and the lower internal connection thread 18 can be connected to the working structure, the upper sealing gasket connecting ring 11 and the upper sealing gasket clamping ring 12 are pressed into the upper sealing gasket embedding groove 9, and the lower sealing gasket connecting ring 14 and the lower sealing gasket clamping ring 15 are pressed into the lower sealing gasket embedding groove 10, and the upper sealing gasket 3 and the lower sealing gasket 5 can be installed on both sides of the upper connecting pipe seat 2 and the lower connecting pipe seat 4 respectively, so that a good sealing effect can be achieved during connection, and a good anti-slip and anti-loosening effect can also be achieved, and such a structure can conveniently align the upper sealing gasket 3 and the lower sealing gasket 5 The buffer balls 20 are disassembled and replaced, and the buffer balls 20 are limited in the ball embedding groove 7 by the limiting clamp 19. Multiple groups of buffer balls 20 fit the external surface and can effectively reduce the friction effect when straightening. During rotation, the gap between the ball embedding groove 7 and the buffer balls 20 is filled by multiple groups of auxiliary small balls 21 inside, so that the buffer balls 20 can roll better and with lower friction. The internal spiral strips 8 arranged inside the inner tube body 1 of the straightener can have a good flow guidance effect, and the eddy and turbulence in the fluid are reduced by changing the movement mode of the fluid to increase the flow rate. In this way, the swirl spiral straightener is more convenient to use.

[0026] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrated non-welded swirl centralizer, characterized in that: include: The centralizer inner tube body (1) comprises an upper connecting tube seat (2) fixedly connected to the upper part of the centralizer inner tube body (1), an upper sealing gasket (3) embedded above the upper connecting tube seat (2), a lower connecting tube seat (4) fixedly connected to the lower part of the centralizer inner tube body (1), a lower sealing gasket (5) embedded below the lower connecting tube seat (4), a spiral centralizing block (6) fixedly connected to the outer side of the centralizer inner tube body (1), an inner spiral strip (8) fixedly arranged inside the centralizer inner tube body (1), and the upper connecting tube seat (4) fixedly connected to the lower part of the centralizer inner tube body (1). An upper sealing gasket embedding groove (9) is provided inside the upper part of the pipe seat (2), a lower sealing gasket embedding groove (10) is provided inside the lower part of the lower connecting pipe seat (4), a ball embedding groove (7) is provided inside one end of the spiral straightening block (6), a limiting clamping ring (19) is fixedly connected to the outer side of the ball embedding groove (7), a buffer ball (20) is movably embedded inside the ball embedding groove (7), and an auxiliary small ball (21) is movably embedded between the buffer balls (20) inside the ball embedding groove (7).

2. The integrated non-welded swirl centralizer according to claim 1, characterized in that: The upper sealing gasket (3) comprises an upper sealing gasket connecting ring (11), one end of the upper sealing gasket connecting ring (11) is fixedly connected to an upper sealing gasket clamping ring (12), and the other end of the upper sealing gasket connecting ring (11) is fixedly connected to an upper sealing gasket outer pad (13).

3. The integrated non-welded swirl centralizer according to claim 1, characterized in that: The lower connecting pipe seat (4) comprises a lower sealing gasket connecting ring (14), one end of the lower sealing gasket connecting ring (14) is fixedly connected to a lower sealing gasket clamping ring (15), and the other end of the lower sealing gasket connecting ring (14) is fixedly connected to a lower sealing gasket outer pad (16).

4. The integrated non-welded swirl centralizer according to claim 1, characterized in that: An upper outer connecting thread (17) is provided on the upper outer side of the upper connecting pipe seat (2), and a lower inner connecting thread (18) is provided on the lower inner side of the lower connecting pipe seat (4).

5. The integrated non-welded swirl centralizer according to claim 1, characterized in that: The spiral straightening blocks (6) are provided in three groups, the ball embedding grooves (7), the limiting clamps (19), the buffer balls (20) and the auxiliary small balls (21) are provided in multiple groups, and the inner spiral strips (8) are provided in three groups.

6. The integrated non-welded swirl centralizer according to claim 1, characterized in that: The specifications of the upper sealing gasket groove (9) are adapted to the upper sealing gasket connecting ring (11) and the upper sealing gasket clamping ring (12), and the specifications of the lower sealing gasket groove (10) are adapted to the lower sealing gasket connecting ring (14) and the lower sealing gasket clamping ring (15).

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