A straightening and positioning device for a continuous composite oil pipe

Abstract

This application relates to the field of oil and gas drilling and production technology, and discloses a straightening and positioning device for a continuous composite tubing. The device includes a mobile platform with a placement groove in its center. Three sets of support components are fixedly connected to the top of the inner wall of the mobile platform. A through-tube is fixedly connected between the three sets of support components. Multiple sets of pushing components are fixedly connected inside the through-tube. Three spherical universal joints c are fixedly connected to the bottom outer side of the through-tube. A sliding rod b is fixedly connected to the end of each of the three spherical universal joints c away from the through-tube. By ensuring the through-tube remains vertically downward under gravity, a dual-head servo motor drives an eccentric extrusion block to pull a lever, pushing extrusion block b and extrusion block a to fix the sleeve rod b and sliding rod b together, thereby fixing the bottom of the through-tube and ensuring the tubing remains vertical inside the through-tube.

Description

Technical Field

[0001] This invention relates to the field of oil and gas drilling and production technology, specifically to a straightening and positioning device for a continuous composite tubing. Background Technology

[0002] "Continuous composite tubing" refers to a special type of tubing or casing used in the oil and gas industry. These tubings are typically constructed from multiple layers of composite materials to provide enhanced performance and durability to withstand challenging downhole environments and operating conditions. A centering and positioning device for continuous composite tubing is a piece of equipment used in oil and gas extraction to ensure the correct position and orientation of the tubing or casing during downhole installation.

[0003] In the prior art, the straightening and positioning device for continuous composite tubing only guides the tubing at the head, and there is no related equipment at the wellhead. Therefore, this invention proposes a straightening and positioning device for continuous composite tubing, which aims to solve the problem of tubing friction damage to the tubing when entering the well passage and at the wellhead. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a straightening and positioning device for continuous composite tubing, which solves the problem in existing technologies where the tubing wall is damaged by friction with the wellhead due to the lack of a straightening and positioning device near the wellhead when the continuous composite tubing enters the well.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a straightening and positioning device for a continuous composite oil pipe, comprising a mobile platform, a placement groove in the middle of the mobile platform, three sets of support components fixedly connected to the top of the inner wall of the mobile platform, a through-tube fixedly connected between the three sets of support components, multiple sets of pushing components fixedly connected inside the through-tube, three spherical universal joints c fixedly connected to the bottom outer side of the through-tube, a sliding rod b fixedly connected to the end of each of the three spherical universal joints c away from the through-tube, and a pull rod slidably connected to the end of the sliding rod b away from the spherical universal joint c, one end of the pull rod... A compression block a is fixedly connected. A dual-head servo motor is fixedly connected inside the other end of the pull rod. An eccentric compression block is rotatably connected to the end of the pull rod away from the compression block a. The output ends on both sides of the dual-head servo motor are fixedly connected inside the eccentric compression block. A compression block b is slidably connected to the outside of the pull rod. Three spherical universal joints d are fixedly connected to the top of the inner wall of the moving platform. Two sleeve rods b are fixedly connected to the end of the spherical universal joint d away from the moving platform. Sliding grooves b are opened at the opposite ends of the two sleeve rods b. The sliding rod b slides between the two sleeve rods b. The pull rod slides between the interiors of the two sliding grooves b.

[0006] Preferably, each set of the pushing assembly includes two sleeve rods a, each sleeve rod a is slidably connected to a slide rod a inside, each slide rod a is fixedly connected to a limit block at the end near the sleeve rod a, each sleeve rod a has a groove a at both the upper and lower ends, each sleeve rod a is slidably connected to a spring inside, and a rubber slide column is rotatably connected between the ends of the two slide rods a away from the sleeve rod a.

[0007] Preferably, multiple mounting blocks are fixedly connected to both the left and right sides of the mobile platform, hydraulic rods are fixedly connected between the mounting blocks on the same side, and moving rods are fixedly connected to the output ends of the two hydraulic rods. Two front and rear rotating frames are rotatably connected to both the left and right ends of the mobile platform, and wheels are rotatably connected to the ends of the four rotating frames away from the mobile platform. The front and rear ends of the two moving rods are rotatably connected to the opposite ends of the two rotating frames on the same side.

[0008] Preferably, each set of support components includes a spherical universal joint a, which is fixedly connected to the top of the inner wall of the moving platform. A connecting rod is fixedly connected to the end of the spherical universal joint a away from the moving platform. A spherical universal joint b is fixedly connected to the end of the connecting rod away from the spherical universal joint a. The end of the spherical universal joint b away from the connecting rod is fixedly connected to the bottom of the outer end of the tube.

[0009] Preferably, two lights are fixedly connected to the front end of the mobile platform, a handle is fixedly connected to the rear end of the mobile platform, protective frames are fixedly connected to the front end and both sides of the mobile platform, and spherical universal joints e are fixedly connected to the four corners of the bottom of the mobile platform. A base is fixedly connected to the end of each of the four spherical universal joints e away from the mobile platform.

[0010] Preferably, the through tube is located in the middle of the placement groove, and multiple rubber protective sheets are fixedly connected to the bottom and top of the through tube.

[0011] Preferably, the extrusion block a and extrusion block b are respectively disposed on opposite sides of two adjacent sleeve rods b, and the extrusion block b is disposed between the eccentric extrusion block and the adjacent sleeve rod b.

[0012] Preferably, the three ball joints a and the three ball joints d are fixedly connected to the top of the inner wall of the mobile platform at equal intervals.

[0013] Preferably, multiple sets of the pushing components are arranged alternately inside the tube, and the limiting block slides between the interiors of two adjacent slide grooves a.

[0014] Preferably, the three protective frames are respectively positioned outside the two hydraulic rods and the lighting lamp.

[0015] Working Principle: During use, first move the equipment to the designated area, then activate the hydraulic rod. The hydraulic rod pulls the moving rod, causing the rotating frame to rotate, thereby retracting the wheels and bringing the base into contact with the ground. With the directional adjustment of the spherical universal joint e, the base can increase the contact area with the ground as the ground level changes, thus making the moving platform more stable on the ground. Then, activate the dual-head servo motor to drive the eccentric extrusion block to rotate, releasing the pressure of extrusion blocks a and b on adjacent sleeve rods b and sliding rod b. This allows sliding rod b to slide between adjacent sleeve rods b. Under the action of gravity, the tube remains in a vertically downward state. Since spherical universal joints a, b, c, and d are all adjustable in all directions... Therefore, the through-tube can automatically adjust its vertical position under the action of gravity. When the through-tube is in the vertical position, the dual-head servo motor is restarted to drive the eccentric extrusion block to rotate. The protruding end of the eccentric extrusion block pulls the tie rod, causing extrusion block a and extrusion block b to jointly extrude the two adjacent sleeve rods b. Then, the sliding rod b is fixed between the two adjacent sleeve rods b, thereby fixing the bottom of the through-tube. Then, the oil pipe passes through the middle of the through-tube. Under the action of the spring, the sliding rod a is pushed to drive the rubber sliding column to constrain the oil pipe, so that it is always in the middle position of the through-tube. This avoids the oil pipe rubbing against the wellhead and damaging the oil pipe. Due to the retractability of the spring, this device can be used for oil pipes of different diameters. After the device is used, the hydraulic rod is restarted to drive the wheel to reset.

[0016] This invention provides a centering and positioning device for continuous composite oil tubing. It has the following beneficial effects:

[0017] 1. The present invention utilizes the cooperation of the through tube, the push assembly, the rubber protective plate, the sleeve a, the slide rod a, the limit block, the slide groove a, the spring, and the rubber slide column to enable the spring to push the slide rod a to drive the rubber slide column to squeeze the oil pipe, so that the oil pipe is always in the middle position of the through tube. In addition, the push assembly can be used for oil pipes of different diameters due to the retractable action of the spring.

[0018] 2. This invention, through the cooperation of a support assembly, a through-tube, a slide bar b, a pull rod, an extrusion block a, an extrusion block b, an eccentric extrusion block, a dual-head servo motor, a sleeve rod b, and a sliding groove b, enables the support assembly to support and fix the through-tube inside the moving platform. Under the action of gravity, the through-tube is always in a vertically downward state. The dual-head servo motor drives the eccentric extrusion block to pull the pull rod, which pushes the extrusion block b and the extrusion block a to fix the sleeve rod b and the slide bar b together, thereby fixing the bottom of the through-tube and ensuring that the oil pipe is always in a vertical state inside the through-tube.

[0019] 3. This invention utilizes the cooperation of a hydraulic rod, a moving rod, a rotating frame, wheels, a spherical universal joint e, and a base to enable the hydraulic rod to move the moving rod, thereby rotating the rotating frame. This allows the wheels to be extended and retracted, preventing the equipment from shaking during operation. Additionally, the spherical universal joint e allows the base to adjust its direction according to the ground conditions, increasing the contact area between the base and the ground and making the moving platform more stable. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a schematic diagram of the placement slot of the present invention;

[0022] Figure 3 This is a schematic diagram of the tube sleeve of the present invention;

[0023] Figure 4 This is a schematic diagram of the spring of the present invention;

[0024] Figure 5 This is a schematic diagram of the sleeve b of the present invention;

[0025] Figure 6 This is a schematic diagram of the dual-head servo motor of the present invention;

[0026] Figure 7 This is a schematic diagram of the rotating frame of the present invention;

[0027] Figure 8 for Figure 7 Enlarged view of point A in the middle.

[0028] The components are as follows: 1. Mobile platform; 2. Placement slot; 3. Spherical universal joint a; 4. Connecting rod; 5. Spherical universal joint b; 6. Through pipe; 7. Rubber protective plate; 8. Sleeve rod a; 9. Slide rod a; 10. Limiting block; 11. Slide groove a; 12. Spring; 13. Rubber slide column; 14. Spherical universal joint c; 15. Slide rod b; 16. Pull rod; 17. Extrusion block a; 18. Extrusion block b; 19. Eccentric extrusion block; 20. Dual-head servo motor; 21. Sleeve rod b; 22. Slide groove b; 23. Spherical universal joint d; 24. Mounting block; 25. Hydraulic rod; 26. Moving rod; 27. Rotating frame; 28. Wheel; 29. ​​Spherical universal joint e; 30. Base; 31. Lighting lamp; 32. Handle; 33. Protective frame. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example:

[0031] Please see the appendix Figure 2 Appendix Figure 5 Appendix Figure 6 This invention provides a straightening and positioning device for a continuous composite tubing, including a mobile platform 1. A placement groove 2 is provided in the middle of the mobile platform 1. Three sets of support components are fixedly connected to the top of the inner wall of the mobile platform 1. A through-tube 6 is fixedly connected between the three sets of support components. The through-tube 6 is located in the middle of the placement groove 2. Multiple rubber protective plates 7 are fixedly connected to the bottom and top of the through-tube 6. Multiple sets of pushing components are fixedly connected inside the through-tube 6. The support components serve to connect the through-tube 6, and the pushing components serve to keep the continuous composite tubing always in the middle of the through-tube 6.

[0032] Three spherical universal joints c14 are fixedly connected to the outer bottom side of the tube 6. Each of the three spherical universal joints c14 has a sliding rod b15 fixedly connected to its end away from the tube 6. A pull rod 16 is slidably connected to the end of the sliding rod b15 away from the spherical universal joint c14. An extrusion block a17 is fixedly connected to one end of the pull rod 16. A dual-head servo motor 20 is fixedly connected inside the other end of the pull rod 16. An eccentric extrusion block 19 is rotatably connected to the end of the pull rod 16 away from the extrusion block a17. The output ends of both sides of the dual-head servo motor 20 are fixedly connected inside the eccentric extrusion block 19. An extrusion block b18 is slidably connected to the outside of the pull rod 16. Three spherical universal joints d23 are fixedly connected to the top of the inner wall of the moving platform 1. The three spherical universal joints a3 and d23 are equidistantly and alternately fixedly connected to the top of the inner wall of the moving platform 1. Two sleeve rods b21 are fixedly connected to the end of the spherical universal joint d23 away from the moving platform 1. The pressure block a17 and the extrusion block b18 are respectively set on the opposite sides of two adjacent sleeve rods b21. The extrusion block b18 is set between the eccentric extrusion block 19 and the adjacent sleeve rod b21. The opposite ends of the two sleeve rods b21 are provided with sliding grooves b22. The sliding rod b15 slides between the two sleeve rods b21, and the pull rod 16 slides between the two sliding grooves b22. The ball joint c14 enables the sliding rod b15 to be universally adjusted, and the ball joint d23 enables the sleeve rod b21 to be universally adjusted. The dual-head servo motor 20 drives the eccentric extrusion block 19 to rotate. The eccentric extrusion block 19 pushes the extrusion block b18 to move and pulls the pull rod 16. The pull rod 16 pulls the extrusion block a17. The extrusion blocks a17 and b18 extrude the sleeve rod b21 and fix it to the sliding rod b15, thereby fixing the bottom of the tube 6.

[0033] Please see the appendix Figure 3 Appendix Figure 4 Each push assembly includes two sleeve rods a8, and a sliding rod a9 is slidably connected inside each sleeve rod a8. A limit block 10 is fixedly connected to one end of each sliding rod a9 near the sleeve rod a8. Sliding grooves a11 are provided at both the upper and lower ends of each sleeve rod a8. Multiple push assemblies are arranged alternately inside the tube sleeve 6. The limit block 10 slides between the interiors of two adjacent sliding grooves a11. A spring 12 is slidably connected inside each sleeve rod a8. A rubber sliding column 13 is rotatably connected between the ends of the two sliding rods a9 away from the sleeve rod a8. The sliding of the limit block 10 inside the sliding groove a11 prevents the sliding rod a9 from moving out of place inside the sleeve rod a8. The spring 12 pushes the sliding rod a9 to drive the rubber sliding column 13 to squeeze the oil pipe. The alternating arrangement of multiple push assemblies keeps the oil pipe in the middle of the tube sleeve 6.

[0034] Please see the appendix Figure 7 Multiple mounting blocks 24 are fixedly connected to both sides of the mobile platform 1. Hydraulic rods 25 are fixedly connected between the mounting blocks 24 on the same side. Movable rods 26 are fixedly connected to the output ends of the two hydraulic rods 25. Two rotating frames 27 are rotatably connected to both ends of the mobile platform 1. Wheels 28 are rotatably connected to the ends of the four rotating frames 27 away from the mobile platform 1. The front and rear ends of the two movable rods 26 are rotatably connected to the opposite ends of the two rotating frames 27 on the same side. The mounting blocks 24 fix the hydraulic rods 25, the hydraulic rods 25 drive the movable rods 26 to move up and down, the movable rods 26 drive the front and rear rotating frames 27 to rotate, and the rotating frames 27 drive the wheels 28 to move and retract, thereby realizing the movement of the mobile equipment and preventing the equipment from slipping during operation.

[0035] Please see the appendix Figure 2 Each support assembly includes a spherical universal joint a3, which is fixedly connected to the top of the inner wall of the moving platform 1. A connecting rod 4 is fixedly connected to the end of the spherical universal joint a3 away from the moving platform 1. A spherical universal joint b5 is fixedly connected to the end of the connecting rod 4 away from the spherical universal joint a3. The end of the spherical universal joint b5 away from the connecting rod 4 is fixedly connected to the bottom of the outer side of the tube 6. The connecting rod 4 connects the spherical universal joint a3 and the spherical universal joint b5. The spherical universal joint a3 and the spherical universal joint b5 can be adjusted in all directions to support the tube 6 and ensure that it can automatically move vertically when gravity is applied to the bottom of the tube 6, thus avoiding manual vertical adjustment.

[0036] Please see the appendix Figure 1 Appendix Figure 7 Appendix Figure 8 Two lights 31 are fixedly connected to the front end of the mobile platform 1, and a handle 32 is fixedly connected to the rear end of the mobile platform 1. Protective frames 33 are fixedly connected to the front end and both sides of the mobile platform 1. The three protective frames 33 are respectively set on the outside of the two hydraulic rods 25 and the lights 31. Ball joints e29 are fixedly connected to the four corners of the bottom of the mobile platform 1. The ends of the four ball joints e29 away from the mobile platform 1 are fixedly connected to the base 30. The lights 31 provide illumination, the handle 32 is used to move the equipment, the protective frames 33 protect the hydraulic rods 25 and the lights 31, the base 30 supports the equipment, and the ball joints e29 allow the base 30 to change its direction according to the ground conditions, thereby increasing the contact area between the base 30 and the ground and making the equipment more stable.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centralizing positioning device for continuous composite tubing, comprising a mobile platform (1), characterized in that, The middle part of the mobile platform (1) is provided with a placing groove (2), the inner wall top of the mobile platform (1) is fixedly connected with three groups of supporting assemblies, three groups of the supporting assemblies are fixedly connected with a pipe passing cylinder (6), the inside of the pipe passing cylinder (6) is fixedly connected with multiple groups of pushing assemblies, the outside bottom of the pipe passing cylinder (6) is fixedly connected with three spherical universal joints c (14), the one end of the three spherical universal joints c (14) away from the pipe passing cylinder (6) is fixedly connected with a slide rod b (15), the one end of the slide rod b (15) away from the spherical universal joint c (14) is slidably connected with a pull rod (16), the one end of the pull rod (16) is fixedly connected with a pressing block a (17), the inside of the other end of the pull rod (16) is fixedly connected with a double-head servo motor (20), the one end of the pull rod (16) away from the pressing block a (17) is rotatably connected with an eccentric pressing block (19), the output ends of the double-head servo motor (20) on both sides are fixedly connected in the inside of the eccentric pressing block (19), the outside of the pull rod (16) is slidably connected with a pressing block b (18), the inner wall top of the mobile platform (1) is fixedly connected with three spherical universal joints d (23), the one end of the spherical universal joint d (23) away from the mobile platform (1) is fixedly connected with two sleeve rods b (21), the opposite ends of the two sleeve rods b (21) are provided with sliding grooves b (22), the slide rod b (15) slides between the two sleeve rods b (21), the pull rod (16) slides between the interiors of the two sliding grooves b (22).

2. A centralizing positioning device for a continuous composite tubing as defined in claim 1, characterized in that Each group of the pushing assembly comprises two sleeve rods a (8), the interiors of the two sleeve rods a (8) are slidably connected with slide rods a (9), the one ends of the two slide rods a (9) close to the sleeve rods a (8) are fixedly connected with limit blocks (10), the upper and lower ends of the two sleeve rods a (8) are provided with sliding grooves a (11), the interiors of the two sleeve rods a (8) are slidably connected with springs (12), the one ends of the two slide rods a (9) away from the sleeve rods a (8) are rotatably connected with rubber slide columns (13).

3. A centralizing positioning device for a continuous composite tubing as defined in claim 1, wherein, The left and right sides of the mobile platform (1) are fixedly connected with multiple mounting blocks (24), the mounting blocks (24) on the same side are fixedly connected with hydraulic rods (25), the output ends of the two hydraulic rods (25) are fixedly connected with moving rods (26), the left and right ends of the mobile platform (1) are rotatably connected with front and rear rotating frames (27), the one ends of the four rotating frames (27) away from the mobile platform (1) are rotatably connected with wheels (28), the front and rear ends of the two moving rods (26) are rotatably connected with the opposite ends of the two rotating frames (27) on the same side.

4. A centralizing positioning device for a continuous composite tubing as defined in claim 1, wherein, Each of the support assemblies comprises a spherical universal joint a (3) fixedly connected to the top end of the inner wall of the moving platform (1), one end of the spherical universal joint a (3) away from the moving platform (1) is fixedly connected with a connecting rod (4), one end of the connecting rod (4) away from the spherical universal joint a (3) is fixedly connected with a spherical universal joint b (5), one end of the spherical universal joint b (5) away from the connecting rod (4) is fixedly connected to the outer bottom end of the tube passing cylinder (6).

5. A centralizing positioning device for a continuous composite tubing as defined in claim 1, wherein, The front end of the moving platform (1) is fixedly connected with two illuminating lamps (31), the rear end of the moving platform (1) is fixedly connected with a handle (32), the front end and the left and right ends of the moving platform (1) are fixedly connected with protective frames (33), and the bottom corners of the moving platform (1) are fixedly connected with spherical universal joints e (29), one end of the four spherical universal joints e (29) away from the moving platform (1) is fixedly connected with a base (30).

6. A centralizing positioning device for a continuous composite tubing as defined in claim 1, wherein, The tube passing cylinder (6) is arranged in the middle of the placing groove (2), and a plurality of rubber protective sheets (7) are fixedly connected to the bottom end and the top end of the tube passing cylinder (6).

7. A centralizing positioning device for a continuous composite tubing as defined in claim 1, wherein The extrusion blocks a (17) and the extrusion blocks b (18) are arranged at the opposite sides of the adjacent two sleeve rods b (21) respectively, and the extrusion blocks b (18) are arranged between the eccentric extrusion blocks (19) and the adjacent sleeve rods b (21).

8. A centralizing positioning device for a continuous composite tubing as defined in claim 4, wherein, Three spherical universal joints a (3) and three spherical universal joints d (23) are fixedly and equidistantly staggered to the top end of the inner wall of the moving platform (1).

9. A centralizing positioning device for a continuous composite tubing as defined in claim 2, wherein, A plurality of the pushing assemblies are arranged in the interior of the tube passing cylinder (6) in a circulating staggered manner, and the limiting blocks (10) slide in the interiors between the adjacent two sliding grooves a (11).

10. A centralizing positioning device for a continuous composite tubing as defined in claim 5, wherein, Three protective frames (33) are arranged outside the two hydraulic rods (25) and the illuminating lamps (31) respectively.

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