Strong-bonding oil pipe buckling and disassembling device

Abstract

The invention belongs to the technical field of drilling platform oil and gas string shackle, and discloses a strong-bonding oil pipe shackle device which comprises a positioning frame, a pair of power tongs and at least two pushing parts. The positioning frame is used for supporting and fixing the shackle device; the power tongs are arranged on the positioning frame and used for applying torque to disassemble the oil pipe buckle; the at least two pushing parts are arranged on the positioning frame and are respectively positioned on the peripheral side of the oil pipe buckle; the pushing part comprises a telescopic end; according to the technical scheme, the multiple pushing parts which are synchronously controlled are adopted, the telescopic end evenly extrudes the oil pipe buckle in the radial direction, and acting force can be continuously and stably provided for the oil pipe buckle instead of depending on single-time impact kinetic energy. By means of the mode, the problem that efficiency is reduced due to the fact that a knocking point deviates is avoided, bonding force can be gradually weakened, the power tongs can complete shackle under the low torque load, reliability and stability of operation are improved, meanwhile, the whole shackle device is fixed through the positioning frame, the pushing part is integrated on the positioning frame, and extra platform operation space does not need to be occupied.

Description

Technical Field

[0001] The present invention relates to the technical field of the release of oil and gas pipe strings on a drilling platform, and particularly relates to a release device for strongly bonded tubing couplings. Background Art

[0002] After an oil and gas well has been in production for some time, as the downhole conditions change and equipment wears, it is often necessary to remove the tubing for necessary downhole operations, so as to optimize the production process and increase the production of a single well. In the workover operations of domestic oilfield platforms, the most commonly used equipment at present is a hydraulic power tong, which is mainly driven by a hybrid of a hydraulic system and electricity and belongs to a semi-automated oil and gas equipment. The hydraulic power tong applies torque by controlling the pressure to complete the release operation of the tubing coupling. However, in the actual application process, the operation ability of this equipment is limited. Especially when encountering special working conditions, its traditional release method has certain limitations.

[0003] Specifically, due to the fact that the tubing string will experience a complex downhole environment during long-term oil and gas production, such as high temperature and high pressure, the corrosion of oil, water and gas mixtures, the accumulation of downhole debris, etc., the tubing coupling may undergo phenomena such as extrusion deformation, electrochemical corrosion bonding, etc., resulting in a significant increase in the release torque of the tubing coupling. When encountering such strongly bonded tubing couplings, the torque provided by the traditional hydraulic power tong is often insufficient, making it difficult to effectively complete the release operation.

[0004] To solve this problem, on-site operators usually adopt an artificial assistance method, such as using a sledgehammer to strike the tubing coupling collar to provide impact kinetic energy, so that the tubing coupling is loosened and then the release operation is carried out.

[0005] However, this artificial assistance method has obvious deficiencies in the drilling platform environment: It is difficult to ensure that the position of each striking point is the same during manual striking, resulting in the influence of the striking effect, and even the loosening efficiency may be reduced due to deviation.

[0006] In addition, the platform space is limited, and equipment such as racks and hydraulic devices occupy a large area, restricting the movement range of the operators and making it difficult to vacate enough space for the striking operation, further reducing the feasibility of manual assisted striking. Summary of the Invention

[0007] The purpose of the present invention is to provide a release device for strongly bonded tubing couplings to solve the problems of low operation efficiency, high labor intensity, insufficient operation safety, limited operation space and difficult to guarantee the accuracy of manual striking in the existing release methods.

[0008] To solve the above technical problems, the present invention adopts the following technical solutions: A release device for strongly bonded tubing couplings, comprising: A positioning frame, used for supporting and fixing the shackle device; A power tong, provided on the positioning frame, for applying torque to disassemble the oil pipe buckle; At least two pushing parts are arranged on the positioning frame and are respectively located on the peripheral sides of the oil pipe buckle; The driving part comprises: The telescopic end is used to apply a thrust to the oil pipe buckle in a radial direction to overcome the bonding force and loosen the oil pipe buckle; The at least two pushing parts are synchronously controlled to uniformly squeeze the telescopic end along the circumference of the oil pipe buckle, gradually weaken the bonding force, and reduce the torque required for the power tongs to break the buckle.

[0009] A further technical solution is that the positioning frame comprises: An upper support plate, used for fixing the power tongs; A lower support plate, located on a side of the upper support plate away from the power tongs; A plurality of connecting members are detachably disposed between the upper support plate and the lower support plate, and the plurality of connecting members are arranged at intervals; A fixing groove, located between the upper support plate and the lower support plate, for mounting the pushing part; The upper support plate and the lower support plate are arranged around the oil pipe buckle to ensure that the telescopic end can act evenly on the surrounding side of the oil pipe buckle.

[0010] A further technical solution is that the upper support plate is U-shaped.

[0011] A further technical solution is that the lower support plate is U-shaped.

[0012] A further technical solution is that a power assembly is provided on the positioning frame; The power assembly comprises: A supercharger, mounted on the positioning frame, for providing driving force; a liquid infusion tube, used to transmit the driving force generated by the supercharger to the pushing part; The infusion tube includes: An input end, connected to the output end of the supercharger to receive a driving force; A plurality of output ends are respectively connected to the pushing parts to ensure that the driving force is evenly distributed to each pushing part, thereby synergistically exerting a thrust on the oil pipe buckle; The main delivery pipeline is used to connect the input end with a plurality of output ends.

[0013] A further technical solution is to further include: A positioning member is connected to the positioning frame and is used to fix the pushing portion into the fixing groove.

[0014] A further technical solution is that the positioning member includes: An end cap, fixedly connected to the positioning frame; A positioning hole, opened on the end cap, for the telescopic end to slide and connect, so as to ensure the stable movement direction of the telescopic end and improve the acting accuracy of the pushing part on the tubing coupling.

[0015] A further technical solution is that it further includes: An arc surface, opened on the free end of the telescopic end, for contacting the tubing coupling.

[0016] A further technical solution is that it further includes: An arc contact head, arranged on the arc surface, for contacting the tubing coupling; An arc contact surface, opened on the side of the arc contact head close to the tubing coupling, providing an area for contacting the surface of the tubing coupling, ensuring uniform application of thrust, thereby effectively overcoming the adhesion force of the tubing coupling and promoting its loosening.

[0017] A further technical solution is that the radian diameter is 60.3mm, 73.0mm, 88.9mm, 101.6mm or 114.3mm.

[0018] Compared with the prior art, the beneficial effects of the present invention are: This technical solution adopts multiple pushing parts with synchronous control, so that the telescopic end uniformly extrudes the tubing coupling along the radial direction, and can continuously and stably provide a force to the tubing coupling, rather than relying on the kinetic energy of a single impact. This method not only avoids the problem of reduced efficiency caused by the deviation of the knocking point, but also gradually weakens the adhesion force, enabling the power tong to complete the uncoupling under a lower torque load, improving the reliability and stability of the operation.

[0019] This solution uses a positioning frame to fix the entire uncoupling device and integrates the pushing part on the positioning frame, without additionally occupying the platform operation space. This structure not only reduces the dependence on the personnel's activity range, but also ensures that the pushing part can apply force accurately, enabling the uncoupling operation to be efficiently completed in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the objectives, technical solutions and beneficial effects of the present invention clearer, the present invention provides the following drawings for description: Figure 1 It is a three-dimensional view of the uncoupling device of the present invention.

[0021] Figure 2 It is a top view of the uncoupling device of the present invention.

[0022] Figure 3 It is a front view of the uncoupling device of the present invention.

[0023] Figure 4 This is the bottom view of the upper support plate of the present invention.

[0024] Figure 5 This is the top view of the lower support plate of the present invention.

[0025] Figure 6 This is the top view of the arc contact head of the present invention.

[0026] Icon: 1 - positioning frame, 2 - power tongs, 3 - pushing part, 4 - telescopic end, 5 - upper support plate, 6 - lower support plate, 7 - connecting piece, 8 - fixing groove, 9 - bracket, 10 - supercharger, 11 - hydraulic system, 12 - three-way pipe, 13 - left hydraulic pipeline, 14 - right hydraulic pipeline, 15 - end cover, 16 - arc surface, 17 - arc contact head, 18 - boss structure. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Embodiment

[0028] As Figures 1 to 6 shown, the present invention provides a strong bonding tubing coupling removal device, including a positioning frame 1, power tongs 2 and at least two pushing parts 3; the positioning frame 1 is used to support and fix the entire coupling removal device; the power tongs 2 are arranged on the positioning frame 1 and are used to apply torque to remove the tubing coupling; the structure of the power tongs 2 is the same as that of the prior art, and the specific structure and working principle are not described herein; in this embodiment, the number of the pushing parts 3 is two, and both are arranged on the positioning frame 1, and the two pushing parts 3 are respectively located on the circumferences of the tubing coupling; specifically, the pushing part 3 is a hydraulic pump; the pushing part 3 has a telescopic telescopic end 4, which is used to apply a thrust to the tubing coupling in the radial direction to overcome the bonding force and loosen the tubing coupling, facilitating the removal of the coupling by the power tongs 2; specifically, the telescopic end 4 is a hydraulic rod; the two pushing parts 3 are synchronously controlled so that the telescopic ends 4 uniformly squeeze along the circumference of the tubing coupling, gradually weakening the bonding force and reducing the torque load required for the power tongs 2 to remove the coupling.

[0029] Principle and beneficial effects of the above technical solutions: When manually knocking on a drilling platform, it is difficult to ensure that the knocking points are consistent each time, resulting in an unstable loosening effect. Especially when an offshore drilling platform is in a shaking state, it is even more difficult to ensure that the knocking points are consistent each time. This technical solution uses multiple pushing parts 3 under synchronous control, so that the telescopic end 4 uniformly extrudes the tubing collar along the radial direction, and can continuously and stably provide a force to the tubing collar, rather than relying on the kinetic energy of a single impact. This method not only avoids the problem of reduced efficiency caused by the offset of the knocking point, but also gradually weakens the adhesive force, enabling the power tongs 2 to complete the unthreading under a lower torque load, improving the reliability and stability of the operation.

[0030] The existing manual knocking method requires sufficient space for personnel to operate. However, the space on the drilling platform is limited, and equipment such as racks and hydraulic devices occupy a large area, resulting in difficult manual knocking operations. To address this problem, this solution uses a positioning frame 1 to fix the entire unthreading device, and integrates the pushing part 3 on the positioning frame 1, without additionally occupying the platform operation space. This structure not only reduces the dependence on the personnel's activity range, but also ensures that the pushing part 3 can apply force accurately, enabling the unthreading operation to be efficiently completed in a limited space.

[0031] In this embodiment, the positioning frame 1 includes an upper support plate 5, a lower support plate 6, and a plurality of connecting parts 7; both the upper support plate 5 and the lower support plate 6 are U-shaped structures; the upper support plate 5 is used to fix the power tongs 2; the power tongs 2 are connected to the upper support plate 5 by bolts; the lower support plate 6 is located below the upper support plate 5; the opposite side walls of the upper support plate 5 and the lower support plate 6 are both provided with support grooves for positioning the connecting parts 7; the connecting parts 7 are specifically connecting plates, and the upper and lower ends of the plurality of connecting plates are respectively clamped in the corresponding support grooves, and the upper support plate 5, the connecting plates, and the lower support plate 6 are connected together by support plate bolts; the plurality of connecting parts 7 are arranged at intervals between the upper support plate 5 and the lower support plate 6; There is a gap between the upper support plate 5 and the lower support plate 6; two fixing grooves 8 are respectively opened on the opposite side walls of the upper support plate 5 and the lower support plate 6, and the two fixing grooves 8 are respectively close to the ends of the corresponding upper support plate 5 or lower support plate 6; two pushing parts 3 are located between the upper support plate 5 and the lower support plate 6, and are respectively installed in the corresponding fixing grooves 8; the telescopic ends 4 of the two pushing parts 3 are arranged oppositely.

[0032] Among them, the upper support plate 5 and the lower support plate 6 are arranged around the tubing collar to ensure that the telescopic end 4 can act uniformly on the periphery of the tubing collar, ensuring that the telescopic end 4 of the pushing part 3 can act uniformly on the periphery of the tubing collar, and will not affect the loosening effect due to excessive unilateral force.

[0033] The edge of the fixed groove 8 is a U-shaped boss structure 18. These bosses are distributed in the contact area between the support plate and the hydraulic pump. By increasing the local thickness and rib design, the high stress generated during operation is effectively dispersed, preventing the support plate from deforming or breaking due to torque load, and further enhancing the durability of the device.

[0034] Principle and beneficial effects of the above technical solution: Adopting the combined structure of the upper support plate 5, the lower support plate 6 and multiple connecting plates to form a stable frame support, making the overall rigidity of the positioning frame 1 stronger, thereby reducing the structural deformation during the operation of the pushing part 3, ensuring uniform circumferential force on the tubing coupling, and improving the loosening effect.

[0035] Both the upper support plate 5 and the lower support plate 6 are U-shaped structures, increasing the contact area and the overall torsional resistance, making the entire shackle device more stable. Even in the shaking environment of an offshore drilling platform, it can maintain stable force application and improve the operation accuracy.

[0036] The multiple connecting plates are arranged at intervals to form a stable force transmission structure, enabling the support frame to resist the influence of platform shaking, ensuring that the pushing part 3 can still accurately apply force to the tubing coupling in a complex offshore environment, and improving the reliability of the shackle.

[0037] The pushing part 3 is installed between the upper support plate 5 and the lower support plate 6 and is embedded in the fixed groove 8 to ensure that the force application direction of the pushing part 3 is fixed, avoiding deviation caused by external installation, and improving the stability of thrust transmission.

[0038] In this embodiment, a power assembly is provided on the positioning frame 1; specifically, a bracket 9 is fixedly connected to the rear end of the upper support plate 5; the power assembly includes a supercharger 10 and an infusion pipe; the supercharger 10 is installed on the bracket 9 by bolts for providing driving force; the infusion pipe is used to transmit the driving force generated by the supercharging valve to the pushing part 3; the infusion pipe includes an input end, a main transmission pipeline and multiple output ends; the input end is communicated with the output end of the supercharging valve to receive the driving force; the multiple output ends are respectively communicated with the pushing part 3 to ensure that the driving force is evenly distributed to each pushing part 3, so as to jointly apply thrust to the tubing coupling; the main transmission pipeline is used to connect the input end and the multiple output ends; Specifically, the supercharger 10 includes a supercharging valve and a hydraulic system 11. The hydraulic system 11 is installed on the upper support plate 5, and the main transmission pipeline is a tee pipe 12; the number of output ends is two, namely the left hydraulic pipeline 13 and the right hydraulic pipeline 14; the input end of the supercharging valve is connected to the left hydraulic pipeline 13 and the right hydraulic pipeline 14 through the tee pipe 12; the outlet ends of the left hydraulic pipeline 13 and the right hydraulic pipeline 14 are respectively communicated with the corresponding hydraulic pump inlet.

[0039] Among them, the working pressure range of the booster valve is 0 - 8 MPa. By adjusting the opening degree of the valve core, a boosting effect of 4 - 10 times can be achieved, thus significantly enhancing the output torque of the two hydraulic pumps. The hydraulic pipeline uses high-pressure hoses, and sealing rings are installed at the joints to ensure no leakage.

[0040] Principle and beneficial effects of the above technical solution: In the operation process, after starting the power tong 2, the hydraulic system 11 starts to supply oil. The operator adjusts the target pressure by adjusting the booster valve. At this time, the booster valve amplifies the input pressure to the set magnification. The high-pressure hydraulic oil drives the hydraulic rods of the left and right hydraulic pumps to move through the left and right hydraulic pipelines 14 respectively, applying a radial clamping force to the tubing connection.

[0041] In this embodiment, a positioning member is further included; the positioning member is connected to the positioning frame 1 and is used to fix the pushing portion 3 into the fixing groove 8.

[0042] Specifically, the number of positioning members is two. Each positioning member includes an end cover 15; the end cover 15 is connected to the upper and lower support plates 6 by bolts; a positioning hole is opened on each end cover 15 for the hydraulic rod to slide and connect, so as to ensure the stable movement direction of the hydraulic rod and improve the acting accuracy of the hydraulic pump on the tubing connection.

[0043] Principle and beneficial effects of the above technical solution: By adding a positioning member on the positioning frame 1 and using the connection method of the end cover 15 and bolts to fix the pushing portion 3 in the fixing groove 8, the pushing portion 3 is always in a fixed position during the working process, avoiding the thrust deviation caused by external disturbances or device loosening. This can ensure the stable movement direction of the hydraulic rod, thereby improving the accuracy of the thrust applied to the tubing connection and making the uncoupling operation more reliable and efficient.

[0044] A positioning hole is opened on each end cover 15 for the sliding connection of the hydraulic rod. This ensures that the hydraulic rod can move stably along the predetermined trajectory during the operation, avoiding displacement, deviation or jamming phenomena that may occur during the thrust application of the hydraulic rod, further improving the accuracy of force application and operation stability. It is not only applicable to drilling platforms, but also in environments where offshore drilling platforms are shaking or space is limited.

[0045] In this embodiment, an arc surface 16 is opened at the free end of the hydraulic rod for contacting the tubing connection.

[0046] Principle and beneficial effects of the above technical solution: The surface of the tubing string usually has an anti-corrosion layer to resist the effects of high salinity, high humidity, and corrosive gases in the marine environment. However, it is difficult to precisely control the direction and force of manual knocking. It is easy to cause local damage to the anti-corrosion layer due to knocking slippage or uneven force, making the tubing more vulnerable to corrosion during subsequent use, shortening its service life, and even affecting the safety of downhole operations.

[0047] The free end of the hydraulic rod adopts an arc surface 16, which can be in large-area contact with the surface of the tubing coupling. Compared with the knocking method of point contact, arc contact can disperse the thrust more evenly, avoiding excessive local stress concentration. In addition, the movement direction of the hydraulic rod is controlled, and there will be no random offset during manual knocking, ensuring that the thrust always acts stably on the tubing coupling, thereby reducing the damage to the anti-corrosion layer caused by uneven force. Even in highly corrosive environments such as offshore drilling platforms, it can effectively protect the anti-corrosion layer of the tubing coupling, improve the long-term service life of the tubing, and its corrosion resistance.

[0048] In this embodiment, two limiting grooves are opened on each arc surface 16; an arc contact head 17 is clamped in each limiting groove for contacting the tubing coupling; the two arc contact heads 17 on each arc surface 16 are arranged mirror-symmetrically in the radial direction of the hydraulic rod; an arc contact surface is opened on each arc contact head 17 to provide an area for contacting the surface of the tubing coupling, ensuring uniform application of thrust, thereby effectively overcoming the adhesive force of the tubing coupling and promoting its loosening.

[0049] The principle and beneficial effects of the above technical solution: During the process of releasing the coupling, the surface of the tubing coupling may undergo minor deformations or uneven local bonding strength due to long-term exposure to a complex downhole environment (such as the influence of high temperature, high pressure, and corrosive fluids). If only a single arc surface 16 is used to contact the tubing coupling, the applied thrust is likely to be concentrated in a certain fixed area, resulting in excessive or insufficient local force, thereby affecting the efficiency and stability of releasing the coupling.

[0050] In this technical solution, two arc contact heads 17 are added to the arc surface 16 and arranged mirror-symmetrically in the radial direction, enabling them to contact two independent areas on the surface of the tubing coupling respectively. When the pushing part 3 applies thrust, the two arc contact heads 17 can make local adaptive adjustments according to the minor deformations on the surface of the tubing coupling, that is: If the surface of the tubing coupling in a certain area is slightly concave or protruding, a single arc surface 16 may not be able to fully fit, while the independent structure of the arc contact head 17 allows it to make minor angular adjustments to ensure a larger area of effective contact, thereby improving the uniformity of force application.

[0051] Due to the mirror-symmetric arrangement of the arc contact heads 17 in the radial direction, the directions of their thrust actions are balanced with each other, making the applied force always evenly distributed along the radial direction of the tubing coupling, avoiding the problem of uneven load caused by poor local contact, and ensuring stable transmission of thrust during the process of releasing the coupling.

[0052] During the pipe coupling removal process, the adhesive force of the tubing coupling may be unevenly distributed. For example, the adhesion force in some areas is stronger while in other areas it is weaker. If relying solely on a single arc surface 16, the thrust may mainly act on the areas with weaker adhesive force, and the force on the areas with stronger adhesion is insufficient, resulting in increased difficulty in removing the coupling.

[0053] By using two arc contact heads 17 to act on different areas of the tubing coupling surface respectively, even if the adhesive force in a certain area is strong, the contact head can still apply local enhanced thrust, making the thrust form a more uniform action distribution on the tubing coupling surface and gradually weakening the adhesive force of the entire tubing coupling.

[0054] When there are minor deformations on the tubing coupling surface, the arc contact head 17 can dynamically adjust its contact angle according to the surface morphology of the tubing coupling, ensuring the effective transmission of thrust and not causing thrust loss due to surface irregularities, thus improving the thrust utilization rate during the coupling removal process.

[0055] When applying force with a single arc surface 16, if there is an anti-corrosion layer on the tubing coupling surface, the force application point is prone to slip due to uneven force or insufficient friction, which may cause local damage to the anti-corrosion layer, making the tubing coupling more vulnerable to corrosion during subsequent use and affecting its service life.

[0056] By arranging two arc contact heads 17 on the arc surface 16, each contact head provides an independent contact point, forming a two-point stable support, greatly reducing the possibility of slipping during the force application process.

[0057] The local adaptive structure of the arc contact head 17 ensures a more uniform thrust distribution, making the stress borne by the anti-corrosion layer during the coupling removal process more dispersed, reducing the situation of excessive local pressure, thereby reducing the risk of anti-corrosion layer damage and improving the durability of the tubing coupling.

[0058] For offshore drilling platforms, due to being under the action of waves for a long time, the operating platform has periodic swaying, making it difficult to apply force accurately during manual operation. And in this solution, through two arc contact heads 17 arranged radially in a mirror image, even when the platform is swaying: Since the two contact heads act on different areas of the tubing coupling respectively, when one contact head has a small displacement due to swaying, the other contact head can provide stable support in the opposite direction, enabling the overall thrust to still act stably on the tubing coupling.

[0059] This symmetrical design can effectively offset the adverse effects brought by the swaying of the offshore platform, ensure the stability of the thrust direction, and improve the controllability and success rate of the coupling removal process.

[0060] In this embodiment, the arc diameters of the arc-shaped contact surfaces are 60.3 mm, 73.0 mm, 88.9 mm, 101.6 mm, or 114.3 mm.

[0061] Principle and beneficial effects of the above technical solution: By replacing the arc-shaped contact heads 17 with different arc diameters, tubing couplings of different sizes can be adapted, and the extrusion blocks support quick replacement to cope with wear or changes in working conditions.

[0062] Although the present invention has been described herein with reference to various illustrative embodiments of the invention, it should be understood that those skilled in the art can devise many other modifications and embodiments that will fall within the scope of the principles of this application and the spirit thereof. More specifically, within the scope of this application, the accompanying drawings, and the claims, various variations and improvements can be made to the components and / or the layout of the subject combination layout. In addition to the variations and improvements made to the components and / or the layout, other uses will also be apparent to those skilled in the art.

Claims

1. A strong bonding oil pipe buckling device, characterized in that: include: A positioning frame, used for supporting and fixing the shackle device; A power tong, provided on the positioning frame, for applying torque to disassemble the oil pipe buckle; At least two pushing parts are arranged on the positioning frame and are respectively located on the peripheral sides of the oil pipe buckle; The driving part comprises: The telescopic end is used to apply a thrust to the oil pipe buckle in a radial direction to overcome the bonding force and loosen the oil pipe buckle; The at least two pushing parts are synchronously controlled to uniformly squeeze the telescopic end along the circumference of the oil pipe buckle, gradually weaken the bonding force, and reduce the torque required for the power tongs to break the buckle.

2. The strong bonding oil pipe buckling device according to claim 1 is characterized in that: The positioning frame comprises: An upper support plate, used for fixing the power tongs; A lower support plate, located on a side of the upper support plate away from the power tongs; A plurality of connecting members are detachably disposed between the upper support plate and the lower support plate, and the plurality of connecting members are arranged at intervals; A fixing groove, located between the upper support plate and the lower support plate, for mounting the pushing part; The upper support plate and the lower support plate are arranged around the oil pipe buckle to ensure that the telescopic end can act evenly on the surrounding side of the oil pipe buckle.

3. The strong bonding oil pipe buckling device according to claim 2 is characterized in that: The upper support plate is in a U-shape.

4. The strong bonding oil pipe buckling device according to claim 2 is characterized in that: The lower support plate is in a U-shape.

5. A strong bonding oil pipe buckling device according to any one of claims 1 to 4, characterized in that: The positioning frame is provided with a power assembly; the power assembly comprises: A supercharger, mounted on the positioning frame, for providing driving force; a liquid infusion tube, used to transmit the driving force generated by the supercharger to the pushing part; The infusion tube includes: An input end, connected to the output end of the supercharger to receive a driving force; A plurality of output ends are respectively connected to the pushing parts to ensure that the driving force is evenly distributed to each pushing part, thereby synergistically exerting a thrust on the oil pipe buckle; The main delivery pipeline is used to connect the input end with a plurality of output ends.

6. The strong bonding oil pipe buckling device according to claim 2 is characterized in that: Also includes: A positioning member is connected to the positioning frame and is used to fix the pushing portion into the fixing groove.

7. The strong bonding oil pipe buckling device according to claim 6 is characterized in that: The positioning member comprises: An end cover, fixedly connected to the positioning frame; A positioning hole is provided on the end cover for sliding connection of the telescopic end to ensure the stability of the movement direction of the telescopic end and improve the precision of the action of the pushing part on the oil pipe buckle.

8. The strong bonding oil pipe buckling device according to claim 1 is characterized by: Also includes: An arc-shaped surface is provided on the free end of the telescopic end and is used for contacting the oil pipe buckle.

9. The strong bonding oil pipe buckling device according to claim 8, characterized in that: Also includes: An arc-shaped contact head, provided on the arc-shaped surface, for contacting the oil pipe buckle; The arc-shaped contact surface is provided on a side of the arc-shaped contact head close to the oil pipe buckle, providing an area in contact with the surface of the oil pipe buckle to ensure uniform application of thrust, thereby effectively overcoming the adhesive force of the oil pipe buckle and promoting its loosening.

10. The strong bonding oil pipe buckling device according to claim 9, characterized in that: The arc diameter is 60.3mm, 73.0mm, 88.9mm, 101.6mm or 114.3mm.

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