A strong-bonding tubing coupling dismounting device

Abstract

The present invention discloses a strong-bonding tubing coupling removal device, belonging to the technical field of the removal of oil and gas pipe strings on a drilling platform, which includes a positioning frame, a power tong, and at least two pushing parts; the positioning frame is used to support and fix the coupling removal device; the power tong is arranged on the positioning frame and is used to apply torque to remove the tubing coupling; the at least two pushing parts are arranged on the positioning frame and are respectively located on the circumferential side of the tubing coupling; the pushing part includes a telescopic end; this technical solution adopts multiple pushing parts with synchronous control, so that the telescopic ends uniformly extrude 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 offset of the knocking point, but also gradually weakens the bonding force, enabling the power tong to complete the removal of the coupling under a lower torque load, improving the reliability and stability of the operation. At the same time, the positioning frame is used to fix the entire coupling removal device, and the pushing parts are integrated on the positioning frame, without additionally occupying the operation space of the platform.

Description

Technical Field

[0001] The present invention relates to the technical field of oil and gas pipe string shackle release of drilling platforms, and specifically relates to a strong-bonding tubing coupling release device. Background Art

[0002] After an oil and gas well has been in production for a period of time, due to changes in downhole conditions and equipment wear, it is often necessary to remove the tubing for necessary downhole operations 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 the 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 pressure to complete the shackle 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 shackle release method has certain limitations.

[0003] Specifically, during the long-term oil and gas production process, the tubing string will experience a complex downhole environment, such as high temperature and high pressure, the corrosive effect of oil-water-gas mixtures, and the accumulation of downhole debris. As a result, the tubing coupling may exhibit phenomena such as extrusion deformation and electrochemical corrosion adhesion, significantly increasing the shackle release torque of the tubing coupling. When encountering such strongly bonded tubing couplings, the torque provided by traditional hydraulic power tongs is often insufficient, making it difficult to effectively complete the shackle release operation.

[0004] To solve this problem, on-site operators usually adopt manual assistance methods, such as using a sledgehammer to strike the tubing coupling collar to provide impact kinetic energy to loosen the tubing coupling before performing the shackle release.

[0005] However, this manual assistance method has obvious deficiencies in the drilling platform environment:

[0006] It is difficult to ensure that the position of each strike point is consistent during manual striking, resulting in affected striking effects and even possible reduction in loosening efficiency due to deviation.

[0007] In addition, the platform space is limited, and equipment such as racks and hydraulic devices occupy a large area, restricting the movement range of operators and making it difficult to create enough space for striking operations, further reducing the feasibility of manual-assisted striking. Summary of the Invention

[0008] The purpose of the present invention is to provide a strong-bonding tubing coupling release device to solve the problems of low operation efficiency, high labor intensity, insufficient operation safety, limited operation space, and difficulty in ensuring the accuracy of manual striking in the existing shackle release methods.

[0009] To solve the above technical problems, the present invention adopts the following technical solutions:

[0010] A strong-bonding tubing coupling release device, comprising:

[0011] A positioning frame, used for supporting and fixing the shackle device;

[0012] A power tong, provided on the positioning frame, for applying torque to disassemble the oil pipe buckle;

[0013] At least two pushing parts are arranged on the positioning frame and are respectively located on the peripheral sides of the oil pipe buckle;

[0014] The driving part comprises:

[0015] 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;

[0016] 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.

[0017] A further technical solution is that the positioning frame comprises:

[0018] An upper support plate, used for fixing the power tongs;

[0019] A lower support plate, located on a side of the upper support plate away from the power tongs;

[0020] 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;

[0021] A fixing groove, located between the upper support plate and the lower support plate, for mounting the pushing part;

[0022] 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.

[0023] A further technical solution is that the upper support plate is U-shaped.

[0024] A further technical solution is that the lower support plate is U-shaped.

[0025] A further technical solution is that a power assembly is provided on the positioning frame;

[0026] The power assembly comprises:

[0027] A supercharger, mounted on the positioning frame, for providing driving force;

[0028] a liquid infusion tube, used to transmit the driving force generated by the supercharger to the pushing part;

[0029] The infusion tube includes:

[0030] An input end, which is communicated with the output end of the supercharger to receive driving force;

[0031] A plurality of output ends, which are respectively communicated with the pushing parts to ensure that the driving force is evenly distributed to each pushing part, so as to cooperate to apply a thrust to the tubing coupling;

[0032] A main conveying pipeline, which is used to connect the input end and the plurality of output ends.

[0033] A further technical solution is that it further includes:

[0034] A positioning member, which is connected to the positioning frame and is used to fix the pushing part into the fixing groove.

[0035] A further technical solution is that the positioning member includes:

[0036] An end cover, which is fixedly connected to the positioning frame;

[0037] A positioning hole, which is opened on the end cover and is used for the sliding connection of the telescopic end, so as to ensure the stable movement direction of the telescopic end and improve the acting precision of the pushing part on the tubing coupling.

[0038] A further technical solution is that it further includes:

[0039] An arc surface, which is opened on the free end of the telescopic end and is used to contact the tubing coupling.

[0040] A further technical solution is that it further includes:

[0041] An arc contact head, which is arranged on the arc surface and is used to contact the tubing coupling;

[0042] An arc contact surface, which is opened on the side of the arc contact head close to the tubing coupling, provides a contact area with the surface of the tubing coupling, ensures the uniform application of thrust, and thus effectively overcomes the adhesive force of the tubing coupling and promotes its loosening.

[0043] A further technical solution is that the radian diameter is 60.3mm, 73.0mm, 88.9mm, 101.6mm or 114.3mm.

[0044] Compared with the prior art, the beneficial effects of the present invention are:

[0045] This technical solution adopts a plurality of pushing parts with synchronous control, so that the telescopic end uniformly extrudes the tubing coupling in the radial direction, 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 efficiency decline caused by the deviation of the knocking point, but also gradually weakens the adhesive force, enables the power tong to complete the uncoupling under a lower torque load, and improves the reliability and stability of the operation.

[0046] This solution uses a positioning frame to fix the entire shackle device, and integrates the pushing part on the positioning frame, without additionally occupying the operation space of the platform. 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 shackle operation to be efficiently completed in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to make the objectives, technical solutions, and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0048] Figure 1 It is a three-dimensional view of the shackle device of the present invention.

[0049] Figure 2 It is a top view of the shackle device of the present invention.

[0050] Figure 3 It is a front view of the shackle device of the present invention.

[0051] Figure 4 It is a bottom view of the upper support plate of the present invention.

[0052] Figure 5 It is a top view of the lower support plate of the present invention.

[0053] Figure 6 It is a top view of the arc contact head of the present invention.

[0054] Reference numerals: 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 DESCRIPTION OF THE EMBODIMENTS

[0055] 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 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

[0056] As Figures 1 to 6As shown in the figure, the present invention provides a strong bonding tubing coupling removal device, which includes a positioning frame 1, a power tong 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 tong 2 is arranged on the positioning frame 1 and is used to apply torque to remove the tubing coupling; the structure of the power tong 2 is the same as that of the prior art, and the specific structure and working principle will not be elaborated here; 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 circumferential side of the tubing coupling; specifically, the pushing part 3 is a hydraulic pump; the pushing part 3 has a telescopic end 4 which is used to apply a thrust force to the tubing coupling along the radial direction to overcome the bonding force and loosen the tubing coupling, so as to facilitate the power tong 2 to remove the coupling; specifically, the telescopic end 4 is a hydraulic rod; the two pushing parts 3 are synchronously controlled so that the telescopic ends 4 uniformly extrude along the circumferential direction of the tubing coupling, gradually weakening the bonding force and reducing the torque load required for the power tong 2 to remove the coupling.

[0057] The principle and beneficial effects of the above technical solution:

[0058] When manually knocking on the drilling platform, it is difficult to ensure that the knocking points are the same each time, resulting in unstable loosening effects. Especially when the offshore drilling platform is in a shaking state, it is even more difficult to ensure that the knocking points are the same each time. This technical solution uses multiple synchronously controlled pushing parts 3 to make the telescopic ends 4 uniformly extrude the tubing coupling along the radial direction, which 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 bonding force, enabling the power tong 2 to complete the coupling removal under a lower torque load, improving the reliability and stability of the operation.

[0059] The existing manual knocking method requires sufficient space for personnel to operate, but 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 the positioning frame 1 to fix the entire coupling removal device and integrates the pushing part 3 on the positioning frame 1, without occupying additional platform operation space. This structure not only reduces the dependence on the range of personnel activities, but also ensures that the pushing part 3 can apply force accurately, enabling the coupling removal operation to be efficiently completed in a limited space.

[0060] 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 tong 2; the power tong 2 is connected to the upper support plate 5 by bolts; the lower support plate 6 is located below the upper support plate 5; both the opposite side walls of the upper support plate 5 and the lower support plate 6 are 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;

[0061] There is a gap between the upper support plate 5 and the lower support plate 6; two fixing grooves 8 are respectively formed 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; the 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.

[0062] Among them, the upper support plate 5 and the lower support plate 6 are arranged around the tubing coupling to ensure that the telescopic end 4 can act uniformly on the circumferential side of the tubing coupling, ensuring that the telescopic end 4 of the pushing part 3 can act uniformly on the circumferential side of the tubing coupling and will not affect the loosening effect due to excessive unilateral force.

[0063] The edge of the fixing groove 8 is a U-shaped boss structure 18, and 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 the operation is effectively dispersed, avoiding deformation or fracture of the support plate due to torque load, and further enhancing the durability of the device.

[0064] The principle and beneficial effects of the above technical solution:

[0065] 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 positioning frame 1 more rigid as a whole, 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.

[0066] 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.

[0067] 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 apply force accurately to the tubing coupling in a complex offshore environment, and improving the reliability of the shackle.

[0068] The pushing part 3 is installed between the upper support plate 5 and the lower support plate 6 and is embedded in the fixing 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.

[0069] 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 pressure increasing valve to the pushing part 3; the infusion pipe includes an input end, a main conveying pipeline and a plurality of output ends; the input end is communicated with the output end of the pressure increasing valve to receive the driving force; the plurality of 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 apply a thrust to the tubing coupling through their combined action; the main conveying pipeline is used to connect the input end and the plurality of output ends.

[0070] Specifically, the supercharger 10 includes a pressure increasing valve and a hydraulic system 11, the hydraulic system 11 is installed on the upper support plate 5, and the main conveying pipeline is a tee pipe 12; the number of output ends is two, which are a left hydraulic pipeline 13 and a right hydraulic pipeline 14 respectively; the input end of the pressure increasing 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.

[0071] Among them, the working pressure range of the pressure increasing valve is 0 - 8 MPa, and a pressure increasing effect of 4 - 10 times can be achieved by adjusting the opening degree of the valve core, so as to significantly increase the output torque of the two hydraulic pumps. The hydraulic pipeline adopts a high-pressure hose, and a sealing ring is installed at the connection to ensure no leakage.

[0072] The principle and beneficial effects of the above technical solution:

[0073] In the operation process, after the power tongs 2 are started, the hydraulic system 11 starts to supply oil. The operator adjusts the target pressure by adjusting the pressure increasing valve, and at this time, the pressure increasing valve amplifies the input pressure to the set magnification. The high-pressure oil drives the hydraulic rods of the left and right hydraulic pumps to move through the left and right hydraulic pipelines 14 respectively, and applies a radial clamping force to the tubing coupling.

[0074] 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 part 3 into the fixing groove 8.

[0075] Specifically, the number of positioning members is two, and 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 precision of the hydraulic pump on the tubing coupling.

[0076] The principle and beneficial effects of the above technical solution:

[0077] By adding positioning parts on the positioning frame 1 and adopting the method of connecting the end cover 15 with bolts, the pushing part 3 is fixed in the fixing groove 8, so that the pushing part 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 coupling and making the uncoupling operation more reliable and efficient.

[0078] Each end cover 15 is provided with a positioning hole for the sliding connection of the hydraulic rod. This ensures that the hydraulic rod can move stably along a 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.

[0079] In this embodiment, the free end of the hydraulic rod is provided with an arc surface 16 for contacting the tubing coupling.

[0080] The principle and beneficial effects of the above technical solution:

[0081] The surface of the tubing string usually has an anti-corrosion layer to resist the influence of high salinity, high humidity and corrosive gases in the marine environment. However, it is difficult to accurately control the direction and intensity of the force during manual knocking, and it is easy to cause local damage to the anti-corrosion layer due to knocking slipping or uneven force, making the tubing more vulnerable to corrosion during subsequent use, shortening the service life, and even affecting the safety of downhole operations.

[0082] 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 point-contact knocking method, the 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 deviation 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 and anti-corrosion ability of the tubing.

[0083] In this embodiment, two limiting grooves are provided 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 provided 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 adhesion force of the tubing coupling and promoting its loosening.

[0084] The principle and beneficial effects of the above technical solution:

[0085] During the process of releasing the tubing connection, the surface of the tubing connection may undergo minor deformations or uneven local bonding strengths due to long-term exposure to complex downhole environments (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 connection, the applied thrust is likely to concentrate in a certain fixed area, resulting in excessive or insufficient local stress, thereby affecting the efficiency and stability of releasing the connection.

[0086] This technical solution adds two arc contact heads 17 to the arc surface 16 and arranges them radially in a mirror image, enabling them to contact two independent areas on the surface of the tubing connection 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 connection, that is:

[0087] If the surface of the tubing connection in a certain area is slightly sunken or protruding, the 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 effective contact area, thereby improving the uniformity of the applied force.

[0088] Due to the radial mirror arrangement of the arc contact heads 17, 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 connection, avoiding the problem of uneven load caused by poor local contact, and ensuring the stable transmission of thrust during the process of releasing the connection.

[0089] During the process of releasing the tubing connection, the bonding force of the tubing connection may be unevenly distributed. For example, the adhesion force in some areas is stronger, while in other areas it is weaker. If only relying on the single arc surface 16, the thrust may mainly act on the areas with weaker bonding force, and the acting force on the areas with stronger bonding is insufficient, resulting in an increase in the difficulty of releasing the connection.

[0090] By using two arc contact heads 17 to act on different areas of the surface of the tubing connection respectively, even if the bonding force in a certain area is stronger, the contact head can still apply local enhanced thrust, making the thrust form a more uniform acting distribution on the surface of the tubing connection, gradually weakening the bonding force of the entire tubing connection.

[0091] When there are minor deformations on the surface of the tubing connection, the arc contact heads 17 can dynamically adjust their contact angles according to the surface morphology of the tubing connection to ensure the effective transmission of thrust, without loss of thrust due to surface irregularities, improving the utilization rate of thrust during the process of releasing the connection.

[0092] When applying force with the single arc surface 16, if there is an anti-corrosion layer on the surface of the tubing connection, the application point of the force is likely to slip due to uneven stress or insufficient friction, which may cause local damage to the anti-corrosion layer, making the tubing connection more vulnerable to corrosion during subsequent use and affecting its service life.

[0093] By arranging two arc-shaped contact heads 17 on the arc surface 16, each contact head provides an independent contact point, forming a double-point stable support, which greatly reduces the possibility of slippage during the force application process.

[0094] The local adaptive structure of the arc-shaped contact head 17 ensures a more uniform thrust distribution, making the stress borne by the anti-corrosion layer during the shackle 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 connection.

[0095] For offshore drilling platforms, due to being under the action of waves for a long time, the operating platform has periodic shaking, making it difficult to apply force accurately during manual operation. And in this solution, two arc-shaped contact heads 17 arranged radially and mirror-symmetrically, even when the platform shakes:

[0096] Since the two contact heads act on different areas of the tubing connection respectively, when one contact head has a small displacement due to shaking, the other contact head can provide stable support in the opposite direction, so that the overall thrust can still act stably on the tubing connection.

[0097] This symmetric design can effectively offset the adverse effects brought by the shaking of the offshore platform, ensure the stability of the thrust direction, and improve the controllability and success rate of the shackle removal process.

[0098] In this embodiment, the radian diameters of the arc-shaped contact surfaces are 60.3 mm, 73.0 mm, 88.9 mm, 101.6 mm or 114.3 mm.

[0099] The principle and beneficial effects of the above technical solution:

[0100] By replacing the arc-shaped contact heads 17 with different radian diameters, different sizes of tubing connections can be adapted, and the extrusion blocks support quick replacement to cope with wear or working condition changes.

[0101] Although the present invention has been described herein with reference to multiple illustrative embodiments of the present invention, it should be understood that those skilled in the art can design many other modifications and embodiments that will fall within the scope of the principles and spirit disclosed in this application. More specifically, within the scope of this application's disclosure, the drawings, and the claims, various variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A strong bonding oil pipe buckle breaker 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; An arc-shaped surface is provided on the free end of the telescopic end and is used for contacting the oil pipe buckle; An arc-shaped contact head, provided on the arc-shaped surface, for contacting the oil pipe buckle; An 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; The at least two pushing parts are synchronously controlled to uniformly squeeze the telescopic end along the circumference of the tubing buckle, gradually weaken the bonding force, and reduce the torque required for the power tongs to break the buckle; There is no overlap between the projections of the power tongs and the arc surface on the horizontal plane, there is no overlap between the projections of the power tongs and the arc contact head on the horizontal plane, and the tubing buckle is first squeezed at the telescopic end and then moved to the power tongs to be detached.

2. A strong bonding oil pipe buckle breaker device according to claim 1, 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. A strong bonding oil pipe buckle breaker device according to claim 2, characterized in that: The upper support plate is in a U-shape.

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

5. A strong bonding oil pipe buckle breaker 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. A strong bonding oil pipe buckle breaker device according to claim 2, 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. A strong bonding oil pipe buckle breaker device according to claim 6, 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 buckle breaker device according to claim 1, characterized in that: The arc diameter is 60.3mm, 73.0mm, 88.9mm, 101.6mm or 114.3mm.

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