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An expandable packer assembly and packer

A packer component and packer technology, applied in sealing/isolation, wellbore/well components, earthwork drilling and production, etc., can solve problems such as packer corrosion failure, improve reliability, increase service life and Effect of improving reliability and rigidity

Active Publication Date: 2021-01-22
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an expandable packer assembly and a packer for the current problem of packer corrosion failure, which can effectively alleviate the above problems

Method used

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  • An expandable packer assembly and packer
  • An expandable packer assembly and packer
  • An expandable packer assembly and packer

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0024] Since the packers are all run downhole and are more exposed to corrosive fluids, the current expansion tube 4 made of metal is easily corroded by corrosive fluids, which makes the isolation invalid. Therefore, in order to further improve the isolation reliability of the packer Specifically, this patent discloses a packer assembly, which includes an expansion tube 4 and a protective tube 9 arranged outside the expansion tube 4. The expansion tube 4 includes a skeleton 41, an inner layer 42 and an outer layer 43, and the inner layer 42 is arranged on the skeleton. 41 inside, the outer layer 43 is arranged outside the frame 41, the frame 41 is made of metal, and the protective tube 9 is made of rubber. Compared with directly using a metal tube as the expansion tube 4, this solution makes the metal frame 41 not in contact with the fluid , so as to prevent the metal skeleto...

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PUM

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Abstract

The invention relates to the technical field of well drilling or completion, in particular to an expanding type packer assembly and a packer. The packer assembly comprises an expanding pipe, the expanding pipe comprises a framework, an inner layer and an outer layer, the inner layer is arranged on the inner side of the framework, the outer layer is arranged on the outer side of the framework, andthe framework is made from metal. A protection pipe made from rubber is further arranged outside the expanding pipe. The situation that in the process that a packer goes into a well, an expanding pipedeforms and expands to cause clamping can be reduced, the packer can goes into the well more easily, and the reliability of the packer is improved.

Description

technical field [0001] The invention relates to the technical field of well construction and drilling or well completion, in particular to an expansion packer assembly and a packer. Background technique [0002] In the downhole operation of oil and gas field development, as well as in drilling, cementing, testing, well completion and other operations, because the existing packers are all operated downhole and are more exposed to corrosive fluids, the current expansion tube made of metal is susceptible to damage. The corrosive fluid corrodes, thereby rendering the containment ineffective. Contents of the invention [0003] The purpose of the present invention is to provide an expandable packer assembly and a packer for the current problem of corrosion failure of packers, which can effectively alleviate the above problems. [0004] In order to achieve the above object, the technical scheme adopted in the present invention is: [0005] An expandable packer assembly and pack...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/12E21B34/06E21B23/06E21B41/02
CPCE21B23/06E21B33/12E21B34/06E21B41/02
Inventor 胡刚王国荣赖飞戴黎明湛精华廖聪冲岳昌杰赵世平
Owner SOUTHWEST PETROLEUM UNIV
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