Deblocking structure for packer and packer

Abstract

The utility model relates to the technical field of packers, and discloses an unblocking structure for a packer and the packer, the unblocking structure comprises an anchoring device and a metal sleeve, a locking assembly is installed at the lower end of the surface of the inner wall of the metal sleeve, the metal sleeve is installed inside the anchoring device, and the anchoring device comprises a metal cylinder, a spiral spring and a clamping assembly. The spiral spring is fixedly connected to the top end surface in the metal cylinder, and the clamping assembly is installed at the upper end of the metal cylinder. According to the deblocking structure for the packer and the packer, the slip, the metal inserting rod and the limiting cover plate are arranged, the slip is inserted into the metal inserting block, the slip and the metal inserting block can be fixed in an inserted mode through the metal inserting rod, the slip can be conveniently detached and replaced, different types of slips can be used according to the specification of the packer, and the sealing performance of the packer is improved. And the metal inserting block can move in the metal cylinder through the telescopic rod, the metal inserting block can be prevented from being separated from the metal cylinder, and the service time of the device can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of packers, in particular to a packer unsealing structure and a packer. Background Art

[0002] A packer is a key device used to control fluid flow and isolate media. It is primarily used to prevent media mixing, protect the safe operation of pipeline systems, and regulate fluid pressure.

[0003] The packer release structure is an important component of the packer. It is responsible for releasing the seal of the packer on the well wall when necessary to facilitate subsequent downhole operations or maintenance.

[0004] The working principle of the existing unsealing structure is based on hydraulic or mechanical principles. The unsealing structure can seal the packer. However, when replacing part of the device in the unsealing structure, the entire device needs to be disassembled before the unsealing structure can be replaced, which makes the replacement of the unsealing structure more troublesome and time-consuming. Utility Model Content

[0005] The purpose of the utility model is to provide a packer unsealing structure and a packer to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a packer unsealing structure, comprising an anchoring device and a metal sleeve, wherein a locking assembly is installed at the lower end of the inner wall surface of the metal sleeve, and the metal sleeve is installed inside the anchoring device.

[0007] The anchoring device includes a metal tube, a coil spring and a clamping assembly. The coil spring is fixedly connected to the top end surface inside the metal tube, and the clamping assembly is installed on the upper end of the metal tube.

[0008] Preferably, the clamping assembly includes a metal plug, a slip, a metal plug rod, a limiting cover plate, a metal cover plate, a telescopic rod and a locking bolt, the telescopic rod is slidably connected to the lower end surface of the metal plug block, the metal cover plate is fixedly connected to the outward end surface of the telescopic rod, the locking bolt is threadedly connected to the upper end of the metal cover plate, the metal plug rod is inserted into the upper end of the metal plug block, the limiting cover plate is installed on the outward end surface of the metal plug rod, and the slip is inserted into the upper end of the metal plug block.

[0009] Preferably, the metal plug is slidably connected to the upper end of the metal cylinder, and the metal plug is inserted into the upper end of the metal cylinder, so that the position of the metal plug can be determined, and the metal plug can slide on the upper end of the metal cylinder to maintain the balance of the metal plug.

[0010] Preferably, the metal cover is threadedly connected to the lower end of the metal plug, and the locking bolt is threadedly connected to the lower end of the metal plug. The locking bolt can threadably fix the metal cover and the metal plug, and can determine the position between the telescopic rod and the metal plug.

[0011] Preferably, the telescopic rod is threadedly connected to the upper end of the metal cylinder, so that the position of the metal plug can be determined, the position of the metal plug can be easily adjusted, and the disassembly and replacement of the metal plug can be quick and convenient.

[0012] Preferably, the metal rod is inserted into the lower end of the cava, the limiting cover is movably connected to the lower end surface of the cava, the metal rod is inserted into the connection between the metal plug block and the cava, and at the same time, the cava and the metal plug block are limited and fixed with the help of the limiting cover, so that cava of different specifications can be disassembled and replaced.

[0013] Preferably, the coil spring is fixedly connected to the bottom end surface of the metal sleeve, the locking assembly is installed on the inner wall surface of the metal cylinder, and the metal sleeve is installed on the inner wall surface of the metal cylinder. The locking assembly can lock and fix the metal sleeve and the metal cylinder, making it convenient to disassemble and replace the metal cylinder and the metal sleeve, so that the coil spring inside the metal cylinder can be disassembled and replaced.

[0014] The utility model also provides a packer, which comprises the above-mentioned unsealing structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The packer unsealing structure and packer are provided with slips, metal plug rods and limit cover plates. The slips are inserted into the interior of the metal plug block. The metal plug rod can be used to plug and fix the slips to the metal plug block, making it easy to disassemble and replace the slips. Different types of slips can be used according to the specifications of the packer.

[0017] 2. The unsealing structure and packer of the packer are provided with a metal plug, a metal tube and a telescopic rod. The metal plug is inserted into the upper end of the metal tube. The metal plug can drive the telescopic rod to move inside the metal tube, and can determine the position of the metal plug, and can prevent the metal plug from being separated from the metal tube, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional schematic diagram of the utility model packer;

[0019] Figure 2 This is a three-dimensional schematic diagram of the unsealing structure of the utility model;

[0020] Figure 3 For this utility model Figure 2 A local enlarged schematic diagram of the structure at point A;

[0021] Figure 4 For this utility model Figure 2 A local enlarged schematic diagram of the structure at point B in FIG.

[0022] Figure 5 For this utility model Figure 2 A local enlarged schematic diagram of the structure at position C in FIG.

[0023] Figure 6 This is a schematic diagram of the internal device of the unsealing structure of the utility model.

[0024] In the figure: 1. Anchoring device; 11. Metal cylinder; 12. Coil spring; 13. Clamping assembly; 131. Metal plug; 132. Slip; 133. Metal plug rod; 134. Limiting cover; 135. Metal cover; 136. Telescopic rod; 137. Locking bolt; 2. Metal sleeve; 3. Locking assembly. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0026] See also Figure 1-6 , the utility model provides the following technical solutions:

[0027] A packer includes a release structure, which also includes an anchoring device 1 and a metal sleeve 2. A locking assembly 3 is installed at the lower end of the inner wall surface of the metal sleeve 2, and the metal sleeve 2 is installed inside the anchoring device 1.

[0028] The anchoring device 1 includes a metal tube 11, a coil spring 12 and a clamping assembly 13. The coil spring 12 is fixedly connected to the top surface inside the metal tube 11. The coil spring 12 is fixedly connected to the bottom surface of the metal sleeve 2. The locking assembly 3 is installed on the inner wall surface of the metal tube 11. The metal sleeve 2 is installed on the inner wall surface of the metal tube 11. The locking assembly 3 can lock and fix the metal sleeve 2 and the metal tube 11, making it convenient to disassemble and replace the metal tube 11 and the metal sleeve 2, so that the coil spring 12 inside the metal tube 11 can be disassembled and replaced. The clamping assembly 13 is installed on the upper end of the metal tube 11.

[0029] The clamping assembly 13 includes a metal plug 131, a slip 132, a metal plug rod 133, a limiting cover plate 134, a metal cover plate 135, a telescopic rod 136 and a locking bolt 137. The telescopic rod 136 is slidably connected to the lower end surface of the metal plug 131, and the metal plug 131 is slidably connected to the upper end of the metal tube 11. The metal plug 131 is inserted into the upper end of the metal tube 11, so that the position of the metal plug 131 can be determined, and the metal plug 131 can slide on the upper end of the metal tube 11 to maintain the balance of the metal plug 131. The telescopic rod 136 is threadedly connected to the upper end of the metal tube 11. The telescopic rod 136 is threadedly connected to the upper end of the metal tube 11, so that the position of the metal plug 131 can be determined, which makes it easy to adjust the position of the metal plug 131 and make the removal and replacement of the metal plug 131 quick and convenient. The metal cover plate 135 is fixedly connected to the outward end surface of the telescopic rod 136. 135 is threadedly connected to the lower end of the metal plug 131, and the locking bolt 137 is threadedly connected to the lower end of the metal plug 131. The locking bolt 137 can threadably fix the metal cover 135 and the metal plug 131, and can determine the position between the telescopic rod 136 and the metal plug 131. The locking bolt 137 is threadedly connected to the upper end of the metal cover 135, and the metal plug 133 is plugged into the upper end of the metal plug 131. The limit cover 134 is installed On the outward end surface of the metal plug rod 133, the metal plug rod 133 is inserted into the lower end of the slip 132, and the limiting cover 134 is movably connected to the lower end surface of the slip 132. The metal plug rod 133 is inserted into the connection between the metal plug block 131 and the slip 132. At the same time, the limiting cover 134 is used to limit and fix the slip 132 and the metal plug block 131. Different specifications of slips 132 can be disassembled and replaced, and the slip 132 is inserted into the upper end of the metal plug block 131.

[0030] When in use, the metal plug 131 is pushed and inserted into the upper end of the metal cylinder 11 so that the metal plug 131 slides on the inner wall surface of the metal cylinder 11 , thereby being able to adjust the position of the metal plug 131 .

[0031] Push the telescopic rod 136 to insert into the upper end of the metal tube 11, and then turn the nut. The nut rotates on the inward end of the telescopic rod 136 to threadably fix the telescopic rod 136 and the metal tube 11, thereby determining the position of the telescopic rod 136.

[0032] The telescopic rod 136 is inserted into the lower end of the metal plug block 131 , and the telescopic rod 136 slides on the inner wall surface of the lower end of the metal plug block 131 .

[0033] The telescopic rod 136 can drive the metal cover 135 to be inserted into the lower end of the metal plug 131, and the metal cover 135 and the lower end of the metal plug 131 are movably connected. Then, the locking bolt 137 is rotated, and the locking bolt 137 can threadably fix the metal plug 131 and the metal cover 135.

[0034] Push the slip 132 to be inserted into the upper end of the metal plug 131 so that the back of the slip 132 is aligned with the back of the metal plug 131 , thereby enabling the metal plug 131 and the slip 132 to be movably connected.

[0035] The metal rod 133 is pushed and inserted into the connection between the metal plug block 131 and the slip 132 so that the outer surface of the metal rod 133 is in the same horizontal plane as the outer surfaces of the metal plug block 131 and the slip 132 .

[0036] The limit cover plate 134 is pushed and inserted into the connection between the metal plug block 131 and the slip 132 , so that the metal plug block 131 and the slip 132 can be movably connected.

[0037] When the packer is inserted into the metal cylinder 11 , the packer can slide on the inner wall surfaces of the metal sleeve 2 and the locking assembly 3 , thereby being able to adjust the position of the packer.

[0038] As the packer continues to move downward, the packer can push the slips 132 outward, and the slips 132 slide on the surface of the packer.

[0039] The slips 132 can drive the metal insert 131 to move outward on the inner wall surface of the metal cylinder 11 through the metal insert rod 133 , thereby adjusting the positions of the metal insert 131 and the slips 132 .

[0040] When the packer moves downward, the packer can push the metal tube 11 to move downward. When the metal tube 11 moves downward, the metal sleeve 2 and the locking assembly 3 can push the metal sleeve 2 and the locking assembly 3 to move downward, so that the metal sleeve 2 and the locking assembly 3 can fix the metal tube 11 and the packer for a second time, and can determine the position of the slip 132.

[0041] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A packer unsealing structure, comprising an anchoring device (1) and a metal sleeve (2), characterized in that: A locking assembly (3) is installed at the lower end of the inner wall surface of the metal sleeve (2), and the metal sleeve (2) is installed inside the anchoring device (1); The anchoring device (1) comprises a metal cylinder (11), a coil spring (12) and a clamping assembly (13), wherein the coil spring (12) is fixedly connected to the top end surface inside the metal cylinder (11), and the clamping assembly (13) is installed on the upper end of the metal cylinder (11).

2. A packer unsealing structure according to claim 1, characterized in that: The clamping assembly (13) includes a metal plug (131), a slip plate (132), a metal plug rod (133), a limiting cover plate (134), a metal cover plate (135), a telescopic rod (136) and a locking bolt (137), wherein the telescopic rod (136) is slidably connected to the lower end surface of the metal plug (131), the metal cover plate (135) is fixedly connected to the outward end surface of the telescopic rod (136), the locking bolt (137) is threadedly connected to the upper end of the metal cover plate (135), the metal plug rod (133) is plugged into the upper end of the metal plug (131), the limiting cover plate (134) is installed on the outward end surface of the metal plug rod (133), and the slip plate (132) is plugged into the upper end of the metal plug (131).

3. The packer unsealing structure according to claim 2, characterized in that: The metal plug (131) is slidably connected to the upper end of the metal cylinder (11).

4. A packer unsealing structure according to claim 3, characterized in that: The metal cover plate (135) is threadedly connected to the lower end of the metal insert block (131), and the locking bolt (137) is threadedly connected to the lower end of the metal insert block (131).

5. The packer unsealing structure according to claim 4, characterized in that: The telescopic rod (136) is threadedly connected to the upper end of the metal cylinder (11).

6. The packer unsealing structure according to claim 5, characterized in that: The metal plug rod (133) is plugged into the lower end of the slip (132), and the limiting cover plate (134) is movably connected to the lower end surface of the slip (132).

7. The packer unsealing structure according to claim 6, characterized in that: The coil spring (12) is fixedly connected to the bottom end surface of the metal sleeve (2), the locking assembly (3) is installed on the inner wall surface of the metal cylinder (11), and the metal sleeve (2) is installed on the inner wall surface of the metal cylinder (11).

8. A packer, characterized in that: The utility model comprises the packer unsealing structure according to any one of claims 1 to 7.

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