Horizontal well sucker rod anti-eccentric wear connector structure

Abstract

The utility model relates to the technical field of horizontal well sucker rod, specifically disclose a kind of horizontal well sucker rod anti-eccentric wear connector structure, including the sucker rod body, the left side of the sucker rod body is provided with first antiskid sleeve, and the right side of first antiskid sleeve is equipped with second antiskid sleeve, the outside of second antiskid sleeve is provided with protective sleeve, protective cover, it is set in the inboard of protective sleeve, the outer end of first antiskid sleeve is provided with link block, and the outer end of link block is equipped with link plate, the outside of link block is provided with mounting block. The horizontal well sucker rod anti-eccentric wear connector structure is positioned assembly to the horizontal well sucker rod anti-eccentric wear connector structure, effectively improve the anti-slip function of horizontal well sucker rod anti-eccentric wear connector structure, while, directional setting is carried out to the horizontal well sucker rod anti-eccentric wear connector structure, effectively improve the stability inside horizontal well sucker rod anti-eccentric wear connector structure.

Description

Technical Field

[0001] This utility model relates to the field of horizontal well sucker rod technology, specifically to a horizontal well sucker rod anti-wear connector structure. Background Technology

[0002] Oil wells often experience sucker rod wear and tubing string leakage due to well deviation and other factors, necessitating the installation of specific anti-wear connector structures. However, existing sucker rods are mostly smooth rods, making it difficult to guarantee that the anti-wear connector structure for horizontal wells will not slip. Therefore, designing a new type of anti-wear connector structure for horizontal well sucker rods is crucial. For example: A Chinese patent announcement (CN208934664U) discloses an electrically heated sucker rod, comprising a sucker rod body with an electric heating core inside. The sucker rod body has an upper connector and a lower connector at both ends, each with a terminal block. A slip sleeve and a retaining sleeve are connected to the upper connector. The slip sleeve fits onto the upper connector, and the retaining sleeve has an opening on its side. The retaining sleeve fits laterally into an annular groove on the upper connector, thus preventing the slip sleeve from detaching from the upper connector. The slip sleeve on one sucker rod is connected to the lower connector on an adjacent sucker rod via threads, thereby connecting the two sucker rods. Blind holes are provided on the end faces of the upper and lower connectors, and the terminal blocks are disposed within these blind holes. This invention optimizes the existing connection structure of electrically heated sucker rods, offering advantages such as simple structure, reliable sealing, good insulation, and quick installation.

[0003] The existing technical solutions have the following drawbacks: While existing horizontal well sucker rods have a simple structure, it is difficult to guarantee that the anti-wear connector structure will not slip with the sucker rod. Therefore, we propose an anti-wear connector structure for horizontal well sucker rods to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a horizontal well sucker rod anti-wear connector structure to solve the problem mentioned in the background art that although the existing horizontal well sucker rod has a simple structure, it is difficult to ensure that the horizontal well sucker rod anti-wear connector structure will not slip with the sucker rod.

[0005] To achieve the above objectives, the present invention provides the following technical solution: As a preferred technical solution of the present invention, a horizontal well sucker rod anti-wear connector structure includes a sucker rod body, a first anti-slip sleeve is provided on the left side of the sucker rod body, and a second anti-slip sleeve is installed on the right side of the first anti-slip sleeve, a protective sleeve is provided on the outside of the second anti-slip sleeve, and a contact block is installed on the outer end of the protective sleeve. Also includes: A protective cover is provided inside the protective sleeve, and a limiting structure is provided inside the protective cover. A locking block is provided at the outer end of the first anti-slip sleeve, and a locking plate is installed at the outer end of the locking block. An installation block is provided on the outer side of the locking block, and a locking bolt is connected to the inner side of the installation block.

[0006] Preferably, a first limiting block is provided in the middle of the sucker rod body, and the first limiting block is arranged parallel to the sucker rod body.

[0007] Preferably, a second limiting block is provided at the outer end of the sucker rod body, and the second limiting block is arranged symmetrically about the center line of the sucker rod body, and the longitudinal section of the second limiting block has a trapezoidal shape.

[0008] Preferably, the first anti-slip sleeve has a first limiting groove in the middle, and the first limiting block is engaged inside the first limiting groove.

[0009] Preferably, the first anti-slip sleeve has a second limiting groove inside, and the second limiting groove is arranged symmetrically about the center line of the first anti-slip sleeve.

[0010] Preferably, the locking blocks are arranged symmetrically about the center line of the second anti-slip sleeve, and mounting blocks are arranged symmetrically about the outside of the locking blocks.

[0011] Preferably, the mounting block and the locating bolt are threaded together, and the mounting block and the locating bolt are arranged perpendicularly to each other.

[0012] Preferably, the lower end of the mounting plate is provided with a positioning plate, and the positioning plate is rotatably connected to the protective sleeve, and the positioning plate is symmetrically arranged about the center line of the protective sleeve.

[0013] Preferably, the limiting structure includes a limiting bolt disposed inside the protective cover, and the outer end of the limiting bolt is provided with a threaded structure, and the limiting bolt is set at an equal angle with respect to the center of the protective cover.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: the anti-wear connector structure for horizontal well sucker rods effectively improves the anti-slip function of the anti-wear connector structure by limiting the assembly of the anti-wear connector structure for horizontal well sucker rods, and at the same time, the directional setting of the anti-wear connector structure for horizontal well sucker rods effectively improves the internal stability of the anti-wear connector structure for horizontal well sucker rods. 1. It is equipped with a locking bolt, a first limiting block and a second limiting block. After the first limiting groove and the second limiting groove inside the first anti-slip sleeve and the second anti-slip sleeve are respectively aligned with the first limiting block and the second limiting block on the outside of the sucker rod body, they are pushed. The right end face of the first anti-slip sleeve and the left end face of the second anti-slip sleeve are in contact. The locking bolt is screwed on horizontally. The first anti-slip sleeve and the second anti-slip sleeve are both engaged on the outside of the sucker rod body, which facilitates the anti-slip function of the horizontal well sucker rod anti-wear connector structure. 2. It is equipped with a positioning plate, a connecting block and a connecting seat. After aligning the center of the circular tube formed by the left and right positioning plates with the center of the protective sleeve, it is placed from top to bottom until the bottom end of the connecting block contacts the connecting seat. Under the action of the connecting seat and the positioning plate, the first anti-slip sleeve and the second anti-slip sleeve are always placed vertically, which facilitates the orientation and limiting function of the anti-wear connector structure of the horizontal well sucker rod. 3. It is equipped with a protective sleeve, a protective cover and a limit bolt. By placing the protective cover horizontally and pressing it until the upper end of the protective sleeve contacts the protective cover, and then tightening the limit bolt, the first anti-slip sleeve and the second anti-slip sleeve are simultaneously set in the sealed cavity formed by the protective sleeve and the protective cover, which can effectively realize the protection function of the anti-wear connector structure of the horizontal well sucker rod. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a frontal cross-sectional view of the present invention. Figure 3 This is a schematic diagram of the overall structure connecting the first anti-slip sleeve and the second anti-slip sleeve of this utility model; Figure 4 This is a schematic diagram of the overall structure connecting the sucker rod body and the second limiting block of this utility model; Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 6 This utility model Figure 2 Enlarged structural diagram at point B.

[0016] In the diagram: 1. Sucker rod body; 2. First anti-slip sleeve; 3. Second anti-slip sleeve; 4. Protective sleeve; 5. Contact block; 6. First limiting block; 7. Second limiting block; 8. Second limiting groove; 9. First limiting groove; 10. Connecting block; 11. Connecting seat; 12. Reinforcing seat; 13. Engaging block; 14. Engaging plate; 15. Positioning plate; 16. Baffle body; 17. Protective cover; 18. Limiting bolt; 19. Mounting block; 20. Engaging bolt. Detailed Implementation

[0017] 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, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Please see Figure 1-6 The present invention provides the following technical solution: A horizontal well sucker rod anti-wear connector structure includes: a sucker rod body 1, a first anti-slip sleeve 2, a second anti-slip sleeve 3, a protective sleeve 4, a contact block 5, a first limiting block 6, a second limiting block 7, a second limiting groove 8, a first limiting groove 9, a connecting block 10, a connecting seat 11, a reinforcing seat 12, a locking block 13, a locking plate 14, a positioning plate 15, a baffle body 16, a protective cover 17, a limiting bolt 18, a mounting block 19, and a locking bolt 20; Specific examples Figure 2 , Figure 3 and Figure 4As shown: First, the sucker rod body 1 is placed vertically. A first limiting block 6 with a square shape is provided on the outside of the sucker rod body 1. The first limiting block 6 is symmetrically arranged about the center line of the sucker rod body 1. Second limiting blocks 7 are provided on both the upper and lower sides of the first limiting block 6. The longitudinal section of the second limiting block 7 is trapezoidal, and both the second limiting block 7 and the first limiting block 6 are placed vertically. A first anti-slip sleeve 2 and a second anti-slip sleeve 3 are selected. A first limiting groove 9 is provided in the middle of both the first anti-slip sleeve 2 and the second anti-slip sleeve 3. A second limiting groove 8 is provided on both the upper and lower sides of a limiting groove 9. The longitudinal section of the second limiting groove 8 is trapezoidal. The first anti-slip sleeve 2 and the second anti-slip sleeve 3 are both placed vertically, with the first anti-slip sleeve 2 located on the left side of the sucker rod body 1 and the right side of the sucker rod body 1 located on the right side. After aligning the first limiting groove 9 and the second limiting groove 8 inside the first anti-slip sleeve 2 and the second anti-slip sleeve 3 with the first limiting block 6 and the second limiting block 7 on the outside of the sucker rod body 1, they are pushed. The outer wall of the first limiting block 6 and the first limiting block 7 are aligned with the first limiting block 6. Friction occurs between the inner walls of the groove 9 and between the outer wall of the second limiting block 7 and the inner wall of the second limiting groove 8, until the outer end faces of the first limiting block 6 and the second limiting block 7 are in contact with the inner end face of the first anti-slip sleeve 2 or the second anti-slip sleeve 3. At this time, the right end face of the first anti-slip sleeve 2 is in contact with the left end face of the second anti-slip sleeve 3. The outer ends of the first anti-slip sleeve 2 and the second anti-slip sleeve 3 are provided with semi-circular locking blocks 13. The front and rear ends of the locking blocks 13 are provided with mounting blocks 19. When the two sets of adjacent mounting blocks 19 are engaged... When contacted, the locking bolt 20 is horizontally screwed into the inside of the mounting block 19. The outer end of the locking bolt 20 is provided with a threaded structure. When the locking bolt 20 is turned, the connection gap between the two sets of adjacent mounting blocks 19 on the left and right is shortened. Under the action of the locking bolt 20, the two sets of adjacent mounting blocks 19 on the left and right are tightly connected. At this time, the gap between the first anti-slip sleeve 2 and the second anti-slip sleeve 3 is shortened. The first anti-slip sleeve 2 and the second anti-slip sleeve 3 are both engaged on the outside of the sucker rod body 1, which facilitates the anti-slip function of the horizontal well sucker rod anti-wear connector structure.

[0019] Specific examples Figure 2 , Figure 3 and Figure 6As shown: A fixing plate 14 is horizontally arranged at the outer end of the fixing block 13, and a positioning plate 15 is installed at the lower end of the lower fixing plate 14. The protective sleeve 4 is placed vertically with the groove opening of the protective sleeve 4 facing upward. The center of the circular tube formed by the left and right positioning plates 15 is aligned with the center of the protective sleeve 4 and placed from top to bottom. Friction is generated between the outer wall of the positioning plate 15 and the inner wall of the protective sleeve 4, and the positioning plate 15 and the protective sleeve 4 are slidably connected until the bottom end face of the lower fixing plate 14 contacts the protective sleeve 4. A semi-circular ring-shaped connecting block 10 is provided in the middle of the outer side of the first anti-slip sleeve 2 and the second anti-slip sleeve 3. When the positioning plate 15 is placed... The outer wall of the connecting block 10 and the inner wall of the connecting seat 11 located at the inner end of the protective sleeve 4 are slidably connected in the vertical direction until the bottom end face of the connecting block 10 contacts the connecting seat 11. A reinforcing seat 12 is installed at the lower end of the connecting seat 11. The outer end face of the reinforcing seat 12 is fixedly connected to the inner end face of the protective sleeve 4. The inner end face of the reinforcing seat 12 is inclined. Under the action of the reinforcing seat 12, the connecting seat 11 and the protective sleeve 4 are reinforced. Under the action of the connecting seat 11 and the positioning plate 15, the first anti-slip sleeve 2 and the second anti-slip sleeve 3 are always placed vertically, which facilitates the orientation and limiting function of the anti-wear connector structure of the horizontal well sucker rod.

[0020] Specific examples Figure 1 , Figure 2 and Figure 5As shown: The outer end of the protective sleeve 4 is provided with a contact block 5, and the middle part of the contact block 5 has an inward concave structure. After the whole assembly of the first anti-slip sleeve 2 and the second anti-slip sleeve 3 is fully inserted into the interior of the protective sleeve 4, the protective cover 17 is placed horizontally. The center of the protective cover 17 is provided with a groove with a circular hole structure. The sucker rod body 1 is inserted through the groove of the protective cover 17. Pressing the protective cover 17 causes friction between the outer wall of the protective cover 17 and the inner wall of the protective sleeve 4, and the protective cover 17 and the protective sleeve 4 are slidably connected until the upper end face of the protective sleeve 4 contacts the protective cover 17. At the connection between the protective cover 17 and the protective sleeve 4, the upper limit bolt 18 is horizontally screwed on. The outer end of the upper limit bolt 18 is provided with a threaded structure, and the upper limit bolt 18 is at an equal angle with respect to the center of the protective sleeve 4. When the limit bolt 18 is turned, the connection gap between the protective cover 17 and the protective sleeve 4 is shortened. Under the action of the limit bolt 18, the protective cover 17 and the protective sleeve 4 are tightly connected. The bottom end face of the protective cover 17 contacts the upper end face of the upper mounting plate 14, and the baffle body 16 engages with it. After the horizontal well sucker rod anti-wear connector structure is placed in the tubing, the sucker rod body 1 always remains parallel to the direction of the tubing. When rotation occurs, the connecting block 10 rotates inside the connecting seat 11, and the positioning plate 15 rotates inside the protective sleeve 4. At the same time, they are set in the sealed cavity formed by the protective sleeve 4 and the protective cover 17, which facilitates the effective protection function of the horizontal well sucker rod anti-wear connector structure.

[0021] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A horizontal well sucker rod anti-wear connector structure, comprising a sucker rod body (1), a first anti-slip sleeve (2) is provided on the left side of the sucker rod body (1), and a second anti-slip sleeve (3) is installed on the right side of the first anti-slip sleeve (2), a protective sleeve (4) is provided on the outside of the second anti-slip sleeve (3), and a contact block (5) is installed on the outer end of the protective sleeve (4). Its features are, Also includes: A protective cover (17) is provided on the inner side of the protective sleeve (4), and a limiting structure is provided on the inner side of the protective cover (17). A locking block (13) is provided on the outer end of the first anti-slip sleeve (2), and a locking plate (14) is installed on the outer end of the locking block (13). An installation block (19) is provided on the outer side of the locking block (13), and a locking bolt (20) is connected to the inner side of the installation block (19).

2. The anti-wear connector structure for horizontal well sucker rods according to claim 1, characterized in that: A first limiting block (6) is provided in the middle of the sucker rod body (1), and the first limiting block (6) is arranged parallel to the sucker rod body (1).

3. The anti-wear connector structure for horizontal well sucker rods according to claim 1, characterized in that: The outer end of the sucker rod body (1) is provided with a second limiting block (7), and the second limiting block (7) is arranged symmetrically about the center line of the sucker rod body (1), and the longitudinal section of the second limiting block (7) is trapezoidal.

4. The anti-wear connector structure for horizontal well sucker rod according to claim 1, characterized in that: The first anti-slip sleeve (2) has a first limiting groove (9) in the middle, and the first limiting block (6) is engaged inside the first limiting groove (9).

5. The anti-wear connector structure for horizontal well sucker rods according to claim 1, characterized in that: The first anti-slip sleeve (2) has a second limiting groove (8) inside, and the second limiting groove (8) is arranged symmetrically about the center line of the first anti-slip sleeve (2).

6. The anti-wear connector structure for horizontal well sucker rods according to claim 1, characterized in that: The anchoring block (13) is arranged symmetrically about the center line of the second anti-slip sleeve (3), and mounting blocks (19) are arranged symmetrically in front and behind on the outer side of the anchoring block (13).

7. The anti-wear connector structure for horizontal well sucker rods according to claim 6, characterized in that: The mounting block (19) is threadedly connected to the locating bolt (20), and the mounting block (19) and the locating bolt (20) are set perpendicularly to each other.

8. The anti-wear connector structure for horizontal well sucker rods according to claim 1, characterized in that: The lower end of the mounting plate (14) is provided with a positioning plate (15), and the positioning plate (15) is rotatably connected to the protective sleeve (4), and the positioning plate (15) is symmetrically arranged about the center line of the protective sleeve (4).

9. The anti-wear connector structure for horizontal well sucker rods according to claim 1, characterized in that: The limiting structure includes a limiting bolt (18) disposed inside the protective cover (17), and the outer end of the limiting bolt (18) is provided with a threaded structure, and the limiting bolt (18) is set at an equal angle with respect to the center of the protective sleeve (4).

Images