Composite wellhead device for oil drilling and production and mounting method thereof

Abstract

The invention provides a composite wellhead device for oil drilling and production and a mounting method thereof, and relates to the field of oil drilling and production. The composite wellhead device for petroleum drilling and production comprises a main body, a fixing plate is fixedly connected to the lower surface of the main body, and a connecting column is fixedly connected to the lower surface of the fixing plate. The guide columns slide in the guide grooves by rotating the rotating disc, and the sliding blocks are driven to move in the sliding grooves. The inclined surface of the sliding block applies pressure to the insertion column and the spring is stretched and deformed. When the sliding block is tightly attached to the inner wall of the connecting groove, the inclined face of the inserting column is disengaged, and under the action of spring elasticity and gravity, the inserting column end is inserted into the sliding block inserting hole, convenient installation is achieved, and the rotating piece drives the threaded rod to rotate to make the moving base move. Meanwhile, the two ends of the movable rod rotate on the rotary column and the connecting block to drive the supporting column to rotate to a certain angle on the first rotary column and keep a distance from the fixed column. Therefore, the supporting column and the connecting seat form a stable triangular structure to share the weight of the wellhead.

Description

Technical Field

[0001] The present invention relates to the technical field of oil drilling, in particular to a composite wellhead device for oil drilling and an installation method thereof. Background Art

[0002] In oil drilling operations, engineers often use a cutting-edge device called a composite wellhead assembly. This assembly integrates multiple advanced technologies and high-quality materials, specifically designed to meet the demands of drilling in diverse geological conditions. This comprehensive technical solution effectively addresses the complex and ever-changing underground environment, ensuring safe and efficient drilling operations.

[0003] Oil wellhead equipment, a crucial core component in the oil extraction process, carries an extremely heavy weight. Currently, most wellhead support structures have a relatively simple design, making it difficult for a single support member to independently bear the weight of the entire wellhead assembly. Consequently, during operation, the majority of the weight is often concentrated on a single support member and the wellhead, increasing the risk of damage. While some systems incorporate external structures to distribute the weight, installation is complex, requiring multiple support columns to be individually installed in designated locations and secured with numerous screws, making the process cumbersome. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the present invention provides a composite wellhead device for oil drilling and an installation method thereof, which solves the problems of a single supporting structure of the wellhead device and a complex installation process and low convenience.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A composite wellhead device for oil drilling includes a main body, a fixed plate is fixedly connected to the lower surface of the main body, a connecting column is fixedly connected to the lower surface of the fixing plate, a rotating disk is rotatably connected to the lower surface of the connecting column, a plurality of connecting columns are provided, a guide groove is provided on the lower surface of the rotating disk, a sliding groove is provided on the lower surface of the fixing plate near the guide groove, a sliding block is slidably connected to the inner side wall of the sliding groove, a guide rod is fixedly connected to the lower surface of the sliding block, the guide rod and the inner wall of the guide groove are slidably connected, a plug hole is provided on the upper surface of the sliding block, positioning grooves are provided on both sides of the fixing plate, a connecting seat is provided in the positioning groove, a connecting groove is provided on the inner surface of the connecting seat near the sliding groove, a connecting seat is fixedly connected to the upper surface of the connecting seat near the connecting groove, a cylindrical groove is provided on the upper surface of the connecting seat, a plug column is slidably connected in the cylindrical groove of the connecting seat, and a mounting groove is fixedly connected to the upper surface of the connecting seat near the plug column, and the other end of the mounting groove is fixedly connected to the other end of the plug column. The guide groove is provided to guide the guide rod so that it moves to the sidemost end of the guide groove and cooperates with the component for fixed installation. The sliding block is provided to cooperate with the connecting groove opened by the connecting seat to cooperate with the other components for fixed installation. The socket is provided to facilitate the insertion of the other end of the column for fixed installation. The connecting seat is provided to install the component. The column is provided to be inserted into the socket of the sliding block. The installation groove is provided to apply pressure to drive the column to jam the socket.

[0008] Preferably, a first connecting block is fixedly connected to the side surface of the connecting base away from the fixed plate. The first connecting block is concave in shape, and the inner wall of the first connecting block is rotatably connected to a first rotating post. The surface of the first rotating post is fixedly connected to a support post, and the side surface of the support post is fixedly connected to a second connecting block. The first rotating post is provided to facilitate the rotation of one end of the support post, the support post is provided to support the device, and the second connecting block is provided to facilitate the rotation of the other end of the movable rod.

[0009] Preferably, the lower surface of the connecting seat is rotatably connected to a mounting shaft, and the upper surface of the mounting shaft is fixedly connected to a threaded rod. The mounting shaft is provided to facilitate the rotation of the component, and the threaded rod is provided to facilitate the movement of the movable seat.

[0010] Preferably, a guide column is fixedly connected to the lower surface of the connecting seat away from the threaded rod, and a movable seat is slidably connected to the inner side wall of the connecting seat. The other end of the movable seat is guided by the arrangement.

[0011] Preferably, a threaded hole is provided on the side surface of the movable seat near the threaded rod, and the threaded rod is engaged with the threaded hole. The threaded hole is provided to cooperate with the threaded rod for movement.

[0012] Preferably, a guide hole is provided on one end of the side surface of the movable seat near the guide post, and the guide post and the guide hole are slidably connected. The guide hole is provided to cooperate with one end of the movable seat for guidance.

[0013] Preferably, a mounting groove is provided on the side surface of the movable seat, and a second rotating column is rotatably connected to the inner side wall of the mounting groove. The second rotating column is provided to facilitate the rotation of the other end of the movable rod.

[0014] Preferably, a movable rod is fixedly connected to the arc surface of the second rotating column, and the other end of the movable rod is rotatably connected to the second inner wall of the connecting block. The movable rod is provided to drive the supporting column to move.

[0015] Preferably, a rotating member is rotatably connected to the upper surface of the connecting seat near the threaded rod, the other end of the threaded rod passes through the connecting seat and is fixedly connected to the rotating member. A fixing post is fixedly connected to the lower surface of the fixing plate near the rotating disk, the surface of the fixing post is rotatably connected to the inner wall of the circular hole of the rotating disk, and a connecting pipe is fixedly connected to the upper surface of the main body. The rotating member is provided to drive the first rotating column to rotate, and the fixing post is provided to support the device.

[0016] A method for installing a composite wellhead device for oil drilling, the specific steps are as follows:

[0017] S1. Insert the two connectors into the positioning slots on either side of the fixed plate. Then, rotate the rotating disk so that it rotates between the lower surface of the connector post and the upper surface of the fixed post. This causes the guide rod to slide along the inner wall of the guide slot. The guide rod moves in the direction away from the center of the rotating disk, causing the sliding block to move along the inner wall of the sliding slot, ultimately moving the sliding slot toward the connecting slot on the inner surface of the connector.

[0018] As the slider moves along the connection slot, the inclined surface at one end applies pressure to the inclined surface of the post. Simultaneously, the spring stretches and deforms under the applied force. When one end of the slider rests against the inner wall of the connection slot, the inclined surface of the post disengages. Subsequently, the combined force of the spring and gravity forces the end of the post into the slot of the slider, completing the installation and securing of the connector.

[0019] S3. After installation, rotate the rotating member clockwise. This rotation drives the threaded rod, which in turn drives the movable base, guided by the threaded rod and guide post. The movable base slides along the inner wall of the connecting base toward the mounting axis. Simultaneously, the ends of the movable rod rotate a limited angle on the inner surface of the second rotating post and the second connecting block. This series of movements causes the support column to adjust its angle on the surface of the first rotating post, ultimately separating the support column from the fixed post and forming a stable triangular support structure with the connecting base.

[0020] Working principle: By rotating the rotating disk, the guide rod slides along the guide groove, thereby driving the connected sliding block to move in the sliding groove. During the movement, the inclined surface of one end of the sliding block will apply pressure to the inclined surface of the plug column. At the same time, the spring will produce tensile deformation due to the force. When one end of the sliding block is close to the inner wall of the connecting groove, the inclined surface of the plug column will disengage. Then, under the combined action of the elastic force of the spring and gravity, one end of the plug column will be inserted into the socket of the sliding block, completing the fixed installation of the connecting seat. Then, the rotation of the rotating part can drive the threaded rod to rotate, so that the movable seat moves along the guide of the threaded rod and the guide column. At the same time, the two ends of the movable rod rotate on the surface of the No. 2 rotating column and the connecting block, causing the support column to rotate to a certain angle on the surface of the No. 1 rotating column, away from the fixed column. In this way, the support column and the connecting seat together form a stable triangular support structure.

[0021] (3) Beneficial effects

[0022] The present invention provides a composite wellhead device for oil drilling and an installation method thereof. It has the following beneficial effects:

[0023] 1. By setting a rotating disk, a guide rod, a guide groove, a sliding block, a sliding groove, a plug post, a connecting seat, a socket, and a spring. By rotating the rotating disk, the guide rod slides along the guide groove, thereby driving the connected sliding block to move in the sliding groove. During the movement, the inclined surface of one end of the sliding block will apply pressure to the inclined surface of the plug post. At the same time, the spring will produce tensile deformation due to the force. When one end of the sliding block is close to the inner wall of the connecting groove, the inclined surface of the plug post will be disengaged. Then, under the combined action of the elastic force of the spring and gravity, one end of the plug post will be inserted into the socket of the sliding block, completing the convenient installation of the connecting seat.

[0024] 2. By arranging a support column, a fixed column, a connecting seat, a movable rod, a connecting block, a No. 2 rotating column, a No. 1 rotating column, a threaded rod, and a movable seat. The rotation of the rotating member can drive the threaded rod to rotate, thereby causing the movable seat to move along the threaded rod and the guide column. At the same time, the ends of the movable rod rotate on the surface of the No. 2 rotating column and the connecting block, pushing the support column to rotate to a certain angle on the surface of the No. 1 rotating column, thereby maintaining a distance from the fixed column. In this way, the support column and the connecting seat jointly form a stable triangular support structure, sharing the weight at the wellhead. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a composite wellhead device for oil drilling proposed by the present invention;

[0026] Figure 2 This is a schematic diagram of the installation structure of a fixed column of a composite wellhead device for oil drilling proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the guide groove installation structure of a composite wellhead device for oil drilling proposed by the present invention;

[0028] Figure 4 This is a schematic diagram of the installation structure of a guide column of a composite wellhead device for oil drilling proposed by the present invention;

[0029] Figure 5 This is a schematic diagram of the connection groove installation structure of a composite wellhead device for oil drilling proposed by the present invention;

[0030] Figure 6 This is a schematic diagram of the installation structure of the positioning groove of the composite wellhead device for oil drilling proposed by the present invention;

[0031] Figure 7 This is a schematic diagram of the fixing plate installation structure of a composite wellhead device for oil drilling proposed by the present invention.

[0032] Among them, 1. connecting pipe; 2. main body; 3. fixed plate; 4. rotating part; 5. connecting seat; 6. connecting block 1; 7. rotating column No. 1; 8. supporting column; 9. threaded rod; 10. connecting seat; 11. mounting shaft; 12. plug column; 13. connecting block 2; 14. movable rod; 15. moving seat; 16. rotating column No. 2; 17. guide column; 18. rotating disk; 19. guide groove; 20. guide rod; 21. sliding block; 22. socket; 23. connecting column; 24. sliding groove; 25. connecting groove; 26. positioning groove; 27. fixing column; 28. mounting groove; 29. spring. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example:

[0035] like Figure 1-7As shown, an embodiment of the present invention provides a composite wellhead device for oil drilling, including a main body 2, a fixed plate 3 is fixedly connected to the lower surface of the main body 2, a connecting column 23 is fixedly connected to the lower surface of the fixing plate 3, a rotating disk 18 is rotatably connected to the lower surface of the connecting column 23, a plurality of connecting columns 23 are provided, a guide groove 19 is provided on the lower surface of the rotating disk 18, a sliding groove 24 is provided on the lower surface of the fixing plate 3 near the guide groove 19, a sliding block 21 is slidably connected to the inner wall of the sliding groove 24, a guide rod 20 is fixedly connected to the lower surface of the sliding block 21, the guide rod 20 and the inner wall of the guide groove 19 are slidably connected, a socket 22 is provided on the upper surface of the sliding block 21, positioning grooves 26 are provided on both sides of the fixing plate 3, and the positioning grooves 2 6 is provided with a connecting seat 10. A connecting groove 25 is provided on the inner surface of the connecting seat 10 near the sliding groove 24. A connecting seat 5 is fixedly connected to the upper surface of the connecting seat 10 near the connecting groove 25. A cylindrical groove is provided on the upper surface of the connecting seat 5. A plug post 12 is slidably connected to the cylindrical groove of the connecting seat 5. A spring 29 is fixedly connected to the upper surface of the connecting seat 10 near the plug post 12. The other end of the spring 29 is fixedly connected to the other end of the plug post 12. A connecting block 16 is fixedly connected to the side surface of the connecting seat 10 away from the fixed plate 3. The connecting block 16 is concave in shape. The inner wall of the connecting block 16 is rotatably connected to the first rotating column 7. The surface of the first rotating column 7 is fixedly connected to the support column 8. The side surface of the support column 8 is fixedly connected to the second connecting block 13. The design of the guide groove 19 is such that it changes in an increasing manner from the center of the circle outward. Therefore, when the rotating disk 18 rotates, the guide rod 20 can drive the connected sliding block 21 to move along the connecting groove 25, thereby facilitating subsequent fixed installation.

[0036] A guide hole is provided on one end of the side surface of the movable seat 15 near the guide post 17, and the guide post 17 is slidably connected to the guide hole. A screw hole is provided on the side surface of the movable seat 15 near the threaded rod 9, and the threaded rod 9 engages with the screw hole. The guide post 17 is fixedly connected to the inner lower surface of the connecting seat 10 away from the threaded rod 9. The movable seat 15 is slidably connected to the inner side wall of the connecting seat 10. The mounting shaft 11 is rotatably connected to the inner lower surface of the connecting seat 10, and the upper surface of the mounting shaft 11 is fixedly connected to the threaded rod 9. The outer arc surface of the rotating disk 18 is designed with anti-slip grooves to facilitate the rotation of the rotating disk 18.

[0037] The lower surface of the fixed plate 3 is fixedly connected to a fixed column 27 near the rotating disk 18, and the surface of the fixed column 27 is rotatably connected to the inner wall of the circular hole of the rotating disk 18. The upper surface of the main body 2 is fixedly connected to the connecting pipe 1, and the upper surface of the connecting seat 10 is rotatably connected to the rotating part 4 near the threaded rod 9. The other end of the threaded rod 9 passes through the connecting seat 10 and is fixedly connected to the rotating part 4. The arc surface of the No. 2 rotating column 16 is fixedly connected to the movable rod 14, and the other end of the movable rod 14 is rotatably connected to the inner wall of the connecting block 2 13. The side surface of the movable seat 15 is provided with a mounting groove 28, and the inner wall of the mounting groove 28 is rotatably connected to the No. 2 rotating column 16.

[0038] A method for installing a composite wellhead device for oil drilling, the specific steps are as follows:

[0039] S1. Insert the two connecting bases 10 into the positioning slots 26 on both sides of the fixed plate 3, then rotate the rotating disk 18 so that it rotates between the lower surface of the connecting post 23 and the upper surface of the fixed post 27. This causes the guide rod 20 to slide and guide on the inner wall of the guide slot 19. The guide rod 20 moves in the direction away from the center of the rotating disk 18, which in turn causes the sliding block 21 to move on the inner wall of the sliding slot 24, ultimately causing the sliding slot 24 to move toward the connecting slot 25 on the inner surface of the connecting base 10.

[0040] S2. As the slider 21 moves along the connection slot 25, the inclined surface at one end of the slider applies pressure to the inclined surface of the post 12. Simultaneously, the spring 29 undergoes tension and deformation due to the applied force. When one end of the slider 21 abuts against the inner wall of the connection slot 25, the inclined surface of the post 12 disengages. Subsequently, the combined force of the spring 29 and gravity forces the end of the post 12 into the receptacle 22 of the slider 21, thereby completing the installation and securing of the connector 10.

[0041] After installation is complete, rotate rotating member 4 clockwise. This rotation drives threaded rod 9, which in turn drives movable base 15 to move along the threaded rod 9 and guide post 17. Moving base 15 slides along the inner wall of connecting base 10 toward mounting shaft 11. Simultaneously, the ends of movable rod 14 rotate a limited angle on the inner wall surfaces of rotating post 16 and connecting block 13. This series of actions allows support column 8 to adjust its angle on the surface of rotating post 7, ultimately separating support column 8 from fixed post 27 and forming a stable triangular support structure with connecting base 10.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A composite wellhead device for oil drilling, comprising a main body (2), characterized in that: The lower surface of the main body (2) is fixedly connected to a fixed plate (3), the lower surface of the fixed plate (3) is fixedly connected to a connecting column (23), the lower surface of the connecting column (23) is rotatably connected to a rotating disk (18), the number of the connecting columns (23) is multiple, the lower surface of the rotating disk (18) is provided with a guide groove (19), the lower surface of the fixed plate (3) is provided with a sliding groove (24) near the guide groove (19), the inner side wall of the sliding groove (24) is slidably connected to a sliding block (21), the lower surface of the sliding block (21) is fixedly connected to a guide rod (20), the guide rod (20) and the inner wall of the guide groove (19) are slidably connected, and the upper surface of the sliding block (21) is fixedly connected to a guide rod (20), the guide rod (20) and the inner wall of the guide groove (19) are slidably connected. A socket (22) is provided on the surface, positioning grooves (26) are provided on both sides of the fixed plate (3), a connecting seat (10) is provided in the positioning groove (26), a connecting groove (25) is provided on the inner surface of the connecting seat (10) near the sliding groove (24), a connecting seat (5) is fixedly connected to the upper surface of the connecting seat (10) near the connecting groove (25), a cylindrical groove is provided on the upper surface of the connecting seat (5), a plug post (12) is slidably connected in the cylindrical groove of the connecting seat (5), a spring (29) is fixedly connected to the upper surface of the connecting seat (10) near the plug post (12), and the other end of the spring (29) is fixedly connected to the other end of the plug post (12).

2. The composite wellhead device for oil drilling according to claim 1, characterized in that: The connecting seat (10) is fixedly connected to a connecting block (6) on the side surface away from the fixed plate (3); the connecting block (6) is concave-shaped; the inner wall of the connecting block (6) is rotatably connected to a first rotating column (7); the surface of the first rotating column (7) is fixedly connected to a support column (8); and the side surface of the support column (8) is fixedly connected to a connecting block (13).

3. The composite wellhead device for oil drilling according to claim 2, characterized in that: The lower surface of the connecting seat (10) is rotatably connected to a mounting shaft (11), and the upper surface of the mounting shaft (11) is fixedly connected to a threaded rod (9).

4. The composite wellhead device for oil drilling according to claim 3, characterized in that: A guide column (17) is fixedly connected to the lower surface of the connecting seat (10) away from the threaded rod (9), and a movable seat (15) is slidably connected to the inner side wall of the connecting seat (10).

5. The composite wellhead device for oil drilling according to claim 4, characterized in that: A threaded hole is provided on the side surface of the movable seat (15) near the threaded rod (9), and the threaded rod (9) is engaged with the threaded hole.

6. The composite wellhead device for oil drilling according to claim 5, characterized in that: A guide hole is provided at one end of the side surface of the movable seat (15) near the guide post (17), and the guide post (17) and the guide hole are slidably connected.

7. The composite wellhead device for oil drilling according to claim 6, characterized in that: A mounting groove (28) is provided on the side surface of the movable seat (15), and a second rotating column (16) is rotatably connected to the inner side wall of the mounting groove (28).

8. The composite wellhead device for oil drilling according to claim 7, characterized in that: The arc surface of the second rotating column (16) is fixedly connected with a movable rod (14), and the other end of the movable rod (14) is rotatably connected to the inner wall of the second connecting block (13).

9. The composite wellhead device for oil drilling according to claim 8, characterized in that: The upper surface of the connecting seat (10) is rotatably connected to a rotating member (4) near the threaded rod (9); the other end of the threaded rod (9) passes through the connecting seat (10) and is fixedly connected to the rotating member (4); the lower surface of the fixing plate (3) is fixedly connected to a fixing column (27) near the rotating disk (18); the surface of the fixing column (27) is rotatably connected to the inner wall of the circular hole of the rotating disk (18); and the upper surface of the main body (2) is fixedly connected to a connecting pipe (1).

10. A method for using the chemical nickel wastewater treatment equipment with filtering function according to any one of claims 1 to 9, characterized in that: The specific processing steps are as follows: S1. Insert the two connecting seats (10) into the positioning grooves (26) on both sides of the fixed plate (3), and then rotate the rotating disk (18) so that it rotates between the lower surface of the connecting column (23) and the upper surface of the fixed column (27). In this way, the guide rod (20) will slide and guide on the inner wall of the guide groove (19). The guide rod (20) moves in the direction of the guide groove (19) away from the center of the rotating disk (18), thereby causing the sliding block (21) to move on the inner wall of the sliding groove (24), and finally causing the sliding groove (24) to move toward the connecting groove (25) on the inner surface of the connecting seat (10). S2. As the sliding block (21) moves along the connecting groove (25), the inclined surface at one end of the sliding block (21) exerts pressure on the inclined surface of the plug post (12). At the same time, the spring (29) is stretched and deformed due to the force. When one end of the sliding block (21) is pressed against the inner wall of the connecting groove (25), the inclined surface of the plug post (12) is disengaged. Subsequently, under the combined action of the elastic force of the spring (29) and gravity, one end of the plug post (12) is inserted into the socket (22) of the sliding block (21), thereby completing the installation and fixation of the connecting seat (10). S3. After the installation is completed, rotate the rotating part (4) clockwise. The rotation of the rotating part (4) will drive the threaded rod (9) to rotate accordingly, and then drive the movable seat (15) to move along the threaded rod (9) and the guide column (17). The movable seat (15) slides toward the installation shaft (11) on the inner wall of the connecting seat (10). At the same time, the two ends of the movable rod (14) rotate at a limited angle on the inner wall surface of the second rotating column (16) and the connecting block 2 (13). This series of actions allows the support column (8) to adjust the angle on the surface of the first rotating column (7). Finally, the support column (8) is separated from the fixed column (27) and forms a stable triangular support structure together with the connecting seat (10).

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