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Clamping device, downhole tool and downhole release structure

A fixed and working technology, which is applied in the field of natural gas and oil exploration, can solve the problems of difficult disassembly and replacement of downhole tools and high cost, and achieve the effect of convenient disassembly and simple fixation

Pending Publication Date: 2019-06-21
成都百胜野牛科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this method is that a huge force needs to be provided to make the teeth of the slips bite into the tubing, which is expensive to provide in oil and gas wells
In addition, after the teeth of the slips bite into the tubing, the downhole tool will be almost permanently fixed in the oil and gas well, making it difficult to disassemble and replace the downhole tool

Method used

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  • Clamping device, downhole tool and downhole release structure
  • Clamping device, downhole tool and downhole release structure
  • Clamping device, downhole tool and downhole release structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment provides a locking device 010 . figure 1 It is a schematic diagram of the external structure of the locking device 010 provided in the embodiment of the present application. figure 2 It is a schematic cross-sectional structure diagram of the locking device 010 provided in the embodiment of the present application, wherein the extruding part 120 is located at the evacuation position. image 3 It is a schematic cross-sectional structure diagram of the locking device 010 provided in the embodiment of the present application, wherein the extruding member 120 is located at the extruding position.

[0058] Please refer to figure 1 , figure 2 and image 3 , In this embodiment, the locking device 010 includes a working column 110 , an extruding part 120 , a power mechanism 130 and a locking part 140 .

[0059] An axial channel 111 extending in the axial direction is opened on the working column 110 . One end of the axial channel 111 is open, and the other...

Embodiment 2

[0072] This embodiment provides a locking device 020 . Figure 8 It is a schematic cross-sectional structure diagram of the locking device 020 provided in the embodiment of the present application, wherein the extruding part 220 is located in the vacated position. Figure 9 It is a schematic cross-sectional structure diagram of the locking device 020 provided in the embodiment of the present application, wherein the extruding member 220 is located at the extruding position.

[0073] Please refer to Figure 8 and Figure 9 , In this embodiment, the locking device 020 includes a working column 210 , an extruding part 220 , a power mechanism 230 and a locking part 240 .

[0074] An axial channel 211 extending in the axial direction is opened on the working column 210 . Both ends of the axial channel 211 are open, and the other end of the axial channel 211 is closed. A radial channel 212 extending in the radial direction is also opened on the working column 210 . The radial c...

Embodiment 3

[0080] This embodiment provides a downhole tool 030 . Figure 10 A schematic structural diagram of the downhole tool 030 provided in this embodiment. The downhole tool 030 provided in this embodiment includes the locking device 010 described in the first embodiment or the locking device 020 described in the second embodiment. In this embodiment, the locking device 010 described in Embodiment 1 is taken as an example for description. The downhole tool 030 provided in this embodiment further includes a function executing component 400 installed on the locking device 010 . The function executing component 400 can be conveniently fixed at a predetermined position in the oil and gas well along with the locking device 010 , and can also be easily disassembled from the oil and gas well along with the locking device 010 .

[0081] The function executing component 400 is a component capable of realizing a certain function in an oil and gas well, such as a temperature detection device...

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PUM

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Abstract

The application relates to the technical fields of natural gas and oil exploitation, and discloses a clamping device, a downhole tool and a downhole release structure. When the clamping device provided by the embodiments of the application is put down into an oil-gas well, an extrusion part is positioned at the abdication position, so that the clamping device can be smoothly put down to the presetposition in the oil-gas well. When the clamping device reaches the preset position in the oil-gas well, a power mechanism drives extrusion part to move towards an extrusion position, the extrusion part extrudes a clamping piece radially outwards so as to enable the clamping piece to move to the outside of a radial channel, and the clamping piece can be embedded into a gap at a coupling part of the oil-gas well at the moment, so that the clamping device is fixed in the oil-gas well. When the clamping device needs to be removed from the oil-gas well, the extrusion part moves to the abdication position under the action of the external force or the power mechanism, the clamping device is lifted upwards by means of a fishing device at the moment, and the clamping piece moves radially inwards under the action of the external force so as to get away from the gap at the coupling part, so that the clamping device is enabled to be fished to the outside of the oil-gas well.

Description

technical field [0001] The application relates to the technical field of natural gas and oil exploitation, in particular to a locking device, a downhole tool and a downhole release structure. Background technique [0002] In oil and gas wells, it is difficult to fix the downhole tool in the predetermined position in the oil and gas well. Currently, slips are often used to fix downhole tools at predetermined positions in oil and gas wells. Slips are sheet-like or block-like parts with teeth, and by applying sufficient radial outward force to the slips, the teeth of the slips can bite into the tubing, thereby fixing the downhole tool at a predetermined position in the oil and gas well . The problem with this method is that it is necessary to provide a huge force to make the teeth of the slips bite into the oil pipe, and providing the above-mentioned force in the oil and gas well needs to pay a high cost. In addition, after the teeth of the slips bite into the oil pipe, the ...

Claims

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Application Information

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IPC IPC(8): E21B23/01E21B19/10
Inventor 刘书豪唐勇陈俊宏苏诗策刘树飞
Owner 成都百胜野牛科技有限公司
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