Clamping releasing device of fisher

Abstract

The invention relates to the technical field of fishers, and discloses a fisher jam releasing device which comprises an upper connector, an upper barrel is mounted at the bottom end of the upper connector, an upper spring and a working body assembly are mounted in the upper barrel, a spring bearing is mounted at the bottom end of the upper barrel, and a limiter is mounted at the bottom end of the spring bearing. And a transmission body assembly is mounted in the limiter. The whole device can be connected with other parts such as a drill column or other tools through the upper connector, so that the device can work cooperatively with other equipment, and the upper barrel mainly bears and transmits jarring force and protects internal parts from being affected by the external environment; the spring bearing seat is mainly used for supporting and fixing the position of the upper spring, providing a stable installation foundation for the upper spring and ensuring that the upper spring cannot move or shake in the working process, and the spring bearing seat can transmit the elastic force of the upper spring to other parts to achieve transmission and conversion of energy.

Description

Technical Field

[0001] The present invention relates to the technical field of salvage devices, in particular to a salvage device jam release device. Background Art

[0002] During the oil extraction process, drilling tools may experience various malfunctions, such as broken drill pipes and dropped drill bits. Alternatively, foreign objects, such as tools or rock fragments, may fall into the well. These foreign objects may affect the normal progress of drilling and may even cause serious accidents such as stuck drill bits. A salvage device is needed to retrieve these objects to ensure safe and smooth drilling. During the salvage process, drilling tools or salvage tools may become stuck in the well and unable to move normally. In this case, a jam release device is needed to release the stuck drill bit, allowing the drilling tools or salvage tools to be successfully removed, reducing the time and cost of salvage operations and improving operational efficiency. The present invention proposes a salvage device jam release device.

[0003] According to a search, Chinese patent literature, publication number: CN218844260U, discloses an oscillator and an oscillation jam-releasing and salvage device. When the oscillator's lifting and hanging body overcomes the elastic force of the spring sheet and moves outward to escape from the annular groove, the oscillator's impact sleeve strikes the convex portion of the center rod upward to oscillate, thereby transmitting a shock force to the salvage device through the center rod, forcing the salvaged instrument to disengage from the stuck point, achieving the purpose of oscillation jam-releasing and improving the salvage success rate. However, in actual use, the anchoring mechanism of this device has a small contact area with the well wall, which is prone to sliding, resulting in insufficient counter-torque. In addition, in well sections with varying diameters or irregular well sections, the anchoring mechanism is difficult to effectively expand and fit, resulting in low impact force transmission efficiency. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the present invention provides a salvage device unjamming device, which has the advantages of easy operation, applicability to multiple working conditions, extended service life, and improved work efficiency, thereby solving the above technical problems.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a salvage device unjamming device, comprising an upper joint, an upper cylinder installed at the bottom end of the upper joint, an upper spring and a working body assembly installed inside the upper cylinder, a spring seat installed at the bottom end of the upper cylinder, a limiter installed at the bottom end of the spring seat, a transmission body assembly installed inside the limiter, a lower cylinder installed at the bottom end of the limiter, a lower spring and a terminal transmission body installed inside the lower cylinder, and a lower joint installed at the bottom end of the lower cylinder.

[0008] Preferably, the outer side surface of the upper joint and the inner side surface of the upper cylinder are both provided with a first thread, and the upper joint is threadedly connected to the interior of the upper cylinder.

[0009] Through the above technical solution, the upper joint can be used to connect the entire device with other components, such as a drill string or other tools, so that the device can work in conjunction with other equipment. The upper cylinder mainly bears and transmits shock force while protecting the internal components from the influence of the external environment. By threading it, it can not only provide higher connection strength and reliability, and withstand greater tension and pressure, but also facilitate installation and disassembly, allowing staff to quickly assemble and repair.

[0010] Preferably, the inner side surface of the upper cylinder and the outer side surface of the spring retainer are both provided with a second thread, and the spring retainer is threadedly connected to the interior of the upper cylinder.

[0011] Through the above technical solution, the spring seat is mainly used to support and fix the position of the upper spring, providing it with a stable installation foundation, ensuring that the upper spring will not be displaced or shaken during operation, and the spring seat can transmit the elastic force of the upper spring to other components to achieve energy transmission and conversion; by threading it with the upper cylinder, it is not only convenient for installation and disassembly, but also can fine-tune the device components, such as the preload force of the spring, the working stroke of the working body assembly, etc., to meet the needs under different working conditions.

[0012] Preferably, the inner side surface of the spring seat and the outer side surface of the limiter are both provided with a third thread, and the limiter is threadedly connected to the inside of the spring seat.

[0013] Through the above technical solution, the limiter can limit its stroke to prevent it from exceeding the specified range during operation, thereby protecting the device from damage and improving the overall safety and reliability; by threading it with the spring seat, the relative position and gap between the limiters can be easily adjusted to meet the requirements under different working conditions.

[0014] Preferably, the inner side surface of the lower cylinder and the outer side surface of the lower joint are both provided with fourth threads, and the lower joint is threadedly connected to the interior of the lower cylinder.

[0015] Through the above technical solution, the lower cylinder and the upper cylinder together constitute the outer cylinder structure of the device. Various components, such as pistons, spindles, etc. are arranged inside the lower cylinder. These components produce relative movement under the action of hydraulic oil, thereby realizing the upward or downward striking function of the device; the lower joint is used to connect the device with other downhole tools or drilling tools. By threading it, it can not only provide higher connection strength and reliability, ensuring that the connection between the various components of the device will not loosen or fall off during operation, but also the threaded connection has good adaptability and flexibility, and can maintain stable connection performance in different working environments and working conditions.

[0016] Preferably, a first sealing ring is provided on the outer side surface of the working body assembly, and a second sealing ring is installed inside the spring seat.

[0017] Through the above technical solution, the first sealing ring can effectively prevent the leakage of hydraulic oil or other working media, ensuring that the hydraulic system inside the device maintains a stable pressure and working state; while the second sealing ring helps to maintain the pressure inside the device stable, reduce energy loss, and enable the impact force generated by the device to be more effectively transmitted to the target object, thereby improving the shock effect.

[0018] Preferably, a third sealing ring is installed inside the limiter, and a fourth sealing ring is installed inside the lower joint.

[0019] Through the above technical solution, the third sealing ring can effectively prevent mud and hydraulic oil from entering other cavities, ensuring that the hydraulic oil and mud inside the device will not leak into each other, reducing wear and corrosion on internal components; the fourth sealing ring can prevent external impurities, particles, etc. from entering the device, avoiding damage to internal components and extending the overall service life of the device.

[0020] Compared with the prior art, the present invention provides a salvage unjamming device with the following beneficial effects:

[0021] 1. The present invention can connect the entire device with other components, such as a drill string or other tools, through the upper joint, so that the device can work in conjunction with other equipment. The upper cylinder mainly bears and transmits the shock force, while protecting the internal components from the influence of the external environment; the spring seat is mainly used to support and fix the position of the upper spring, providing it with a stable installation base, ensuring that the upper spring will not be displaced or shaken during operation, and the spring seat can transmit the elastic force of the upper spring to other components to achieve energy transfer and conversion; by threading it with the upper cylinder, it is not only easy to install and disassemble, but also can fine-tune the device components, such as the preload force of the spring, the working stroke of the working body assembly, etc., to meet the needs of different working conditions.

[0022] 2. The present invention provides a lower cylinder body that can form the outer cylinder structure of the device together with the upper cylinder body. Various components, such as pistons, spindles, etc., are provided inside the lower cylinder body. These components produce relative movement under the action of hydraulic oil, thereby realizing the upward or downward striking function of the device; the lower joint is used to connect the device with other downhole tools or drilling tools. By threading it, it can not only provide higher connection strength and reliability, ensuring that the connection between the various components of the device will not loosen or fall off during operation, but also the threaded connection has good adaptability and flexibility, and can maintain stable connection performance in different working environments and working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic three-dimensional diagram of the structure of the present invention;

[0024] Figure 2 It is a three-dimensional exploded cross-sectional diagram of the cylinder and other parts of the structure of the present invention;

[0025] Figure 3 It is a three-dimensional exploded cross-sectional view of the spring seat and other parts of the structure of the present invention;

[0026] Figure 4 It is a three-dimensional exploded cross-sectional diagram of the lower cylinder and other parts of the structure of the present invention.

[0027] Among them: 1. Upper joint; 2. Upper cylinder; 3. Upper spring; 4. Working body assembly; 5. Spring seat; 6. Limiter; 7. Transfer body assembly; 8. Lower cylinder; 9. Lower spring; 10. End transfer body; 11. Lower joint; 12. First thread; 13. Second thread; 14. Third thread; 15. Fourth thread; 16. First sealing ring; 17. Second sealing ring; 18. Third sealing ring; 19. Fourth sealing ring. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-4A salvage device unjamming device includes an upper joint 1, an upper cylinder 2 is installed at the bottom end of the upper joint 1, an upper spring 3 and a working body assembly 4 are installed inside the upper cylinder 2, a spring seat 5 is installed at the bottom end of the upper cylinder 2, a limiter 6 is installed at the bottom end of the spring seat 5, a transmission body assembly 7 is installed inside the limiter 6, a lower cylinder 8 is installed at the bottom end of the limiter 6, a lower spring 9 and an end transmission body 10 are installed inside the lower cylinder 8, and a lower joint 11 is installed at the bottom end of the lower cylinder 8.

[0030] Specifically, the outer side of the upper connector 1 and the inner side of the upper barrel 2 are both provided with a first thread 12, and the upper connector 1 is threadedly connected to the interior of the upper barrel 2. The advantage is that through this structure, the upper connector 1 can be used to connect the entire device with other components, such as a drill string or other tools, so that the device can work in conjunction with other equipment, while the upper barrel 2 mainly withstands and transmits shock forces while protecting the internal components from the external environment. By threading them together, not only can they provide high connection strength and reliability, and can withstand large tension and pressure, but they can also facilitate installation and disassembly, allowing workers to quickly assemble and repair.

[0031] Specifically, the inner side surface of the upper cylinder 2 and the outer side surface of the spring retainer 5 are both provided with a second thread 13, and the spring retainer 5 is threadedly connected to the interior of the upper cylinder 2. Advantageously, through this structure, the spring retainer 5 primarily supports and secures the position of the upper spring 3, providing a stable mounting base for it, ensuring that the upper spring 3 does not shift or wobble during operation. Furthermore, the spring retainer 5 can transmit the elastic force of the upper spring 3 to other components, achieving energy transfer and conversion. By threading it to the upper cylinder 2, it not only facilitates installation and disassembly, but also allows for fine-tuning of device components, such as the spring preload and the operating stroke of the working body assembly 4, to meet the requirements of different operating conditions.

[0032] Specifically, third threads 14 are provided on the inner side of the spring retainer 5 and the outer side of the stopper 6, and the stopper 6 is threadedly connected to the interior of the spring retainer 5. Advantageously, this structure limits the travel of the stopper 6, preventing it from exceeding a specified range during operation, thereby protecting the device from damage and improving overall safety and reliability. By threading it to the spring retainer 5, the relative position and gap between the stopper 6 and the spring retainer 5 can be easily adjusted to meet the requirements of different operating conditions.

[0033] Specifically, the inner side surface of the lower cylinder 8 and the outer side surface of the lower joint 11 are both provided with a fourth thread 15, and the lower joint 11 is threadedly connected to the interior of the lower cylinder 8. The advantage is that, through this structure, the lower cylinder 8 and the upper cylinder 2 together constitute the outer cylinder structure of the device, and various components, such as pistons, spindles, etc., are provided inside the lower cylinder 8. These components produce relative movement under the action of hydraulic oil, thereby realizing the upward or downward striking function of the device; the lower joint 11 is used to connect the device with other downhole tools or drilling tools. By threading it, it can not only provide high connection strength and reliability, ensuring that the connections between the various components of the device will not loosen or fall off during operation, but also the threaded connection has good adaptability and flexibility, and can maintain stable connection performance under different working environments and working conditions.

[0034] Specifically, a first sealing ring 16 is provided on the outer side of the working body assembly 4, and a second sealing ring 17 is installed inside the spring retainer 5. Advantageously, this structure allows the first sealing ring 16 to effectively prevent leakage of hydraulic oil or other working media, ensuring that the hydraulic system within the device maintains stable pressure and operating conditions. The second sealing ring 17 also helps maintain stable pressure within the device, reducing energy loss and enabling the impact force generated by the device to be more effectively transmitted to the target object, enhancing the shock effect.

[0035] Specifically, a third sealing ring 18 is installed inside the stopper 6, and a fourth sealing ring 19 is installed inside the lower joint 11. Advantageously, this structure allows the third sealing ring 18 to effectively prevent mud and hydraulic oil from entering other cavities, ensuring that the hydraulic oil and mud inside the device do not leak into each other, reducing wear and corrosion on internal components. The fourth sealing ring 19 also prevents external impurities and particles from entering the device, preventing damage to internal components and extending the overall service life of the device.

[0036] When in use, the device as a whole can be connected to other components, such as a drill string or other tools, through the upper joint 1, so that the device can work in conjunction with other equipment, and the upper cylinder 2 mainly bears and transmits the shock force, while protecting the internal components from the influence of the external environment; the spring seat 5 is mainly used to support and fix the position of the upper spring 3, providing it with a stable installation basis, ensuring that the upper spring 3 will not be displaced or shaken during operation, and the spring seat 5 can transmit the elastic force of the upper spring 3 to other components to achieve energy transmission and conversion; by threading it with the upper cylinder 2, it is not only easy to install and disassemble, but also can fine-tune the device components, such as the preload of the spring, the working body The working stroke of the assembly 4 can meet the needs under different working conditions; by setting the lower cylinder 8, it can form the outer cylinder structure of the device together with the upper cylinder 2, and various parts such as pistons, spindles, etc. are arranged inside the lower cylinder 8. These parts produce relative movement under the action of hydraulic oil, thereby realizing the up-striking or down-striking function of the device; the lower joint 11 is used to connect the device with other downhole tools or drilling tools. By threading it, it can not only provide higher connection strength and reliability, but also ensure that the connection between the various components of the device will not loosen or fall off during operation. At the same time, the threaded connection has good adaptability and flexibility, and can maintain stable connection performance in different working environments and working conditions.

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

Claims

1. A salvage device unjamming device, comprising an upper connector (1), characterized in that: The bottom end of the upper joint (1) is installed with an upper cylinder (2), an upper spring (3) and a working body assembly (4) are installed inside the upper cylinder (2), a spring seat (5) is installed at the bottom end of the upper cylinder (2), a limiter (6) is installed at the bottom end of the spring seat (5), a transfer body assembly (7) is installed inside the limiter (6), a lower cylinder (8) is installed at the bottom end of the limiter (6), a lower spring (9) and a terminal transfer body (10) are installed inside the lower cylinder (8), and a lower joint (11) is installed at the bottom end of the lower cylinder (8).

2. The unjamming device for a salvage device according to claim 1, characterized in that: The outer side surface of the upper joint (1) and the inner side surface of the upper cylinder (2) are both provided with a first thread (12), and the upper joint (1) is threadedly connected to the interior of the upper cylinder (2).

3. The unjamming device for a salvage device according to claim 1, characterized in that: The inner side surface of the upper cylinder (2) and the outer side surface of the spring support (5) are both provided with a second thread (13), and the spring support (5) is threadedly connected to the interior of the upper cylinder (2).

4. The unjamming device for a salvage device according to claim 1, characterized in that: The inner side surface of the spring seat (5) and the outer side surface of the limiter (6) are both provided with a third thread (14), and the limiter (6) is threadedly connected to the inside of the spring seat (5).

5. The unjamming device for a salvage device according to claim 1, characterized in that: The inner side surface of the lower cylinder (8) and the outer side surface of the lower joint (11) are both provided with a fourth thread (15), and the lower joint (11) is threadedly connected to the interior of the lower cylinder (8).

6. The unjamming device for a salvage device according to claim 1, characterized in that: A first sealing ring (16) is provided on the outer side surface of the working body assembly (4), and a second sealing ring (17) is installed inside the spring seat (5).

7. The unjamming device for a salvage device according to claim 1, characterized in that: A third sealing ring (18) is installed inside the limiter (6), and a fourth sealing ring (19) is installed inside the lower joint (11).

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