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Wedge-type compression packer

A technology of packer and sealing cylinder, which is applied in the directions of sealing/isolation, wellbore/well components, earthwork drilling and production, etc. It can solve problems such as unstable performance, single setting method, and complex structure of packer, and achieve Simple structure and reliable seat seal

Inactive Publication Date: 2012-10-10
大安市创新机械工程技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of existing packers such as complex structure, unstable performance and single setting method, the present invention provides a wedging compression packer with a new setting method

Method used

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  • Wedge-type compression packer

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] As shown in the accompanying drawings, the present invention includes a steel frame 1 with a conical surface. A sealing cylinder 2, a push cylinder 3, and a positioning cylinder 4 are sequentially installed on the steel framework 1. The inner hole of the sealing cylinder 2 is provided with a conical surface. The conical surface of the steel frame 1 and the conical surface of the sealing cylinder 2 cooperate with each other; the positioning cylinder 4 is equipped with a fixed lock ring 5, a positioning sleeve 6 and an unsealing shear nail 7, and the unsealing shear nail 7 and the positioning sleeve 6 are combined and fixed; the push cylinder 3 A floating lock ring 8 is installed in the inner hole of the lower end, a sealing ring A9 is provided between the push cylinder 3 and the positioning cylinder 4, a sealing ring B10 is provided between the pus...

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Abstract

The invention relates to a wedge-type compression packer. The wedge-type compression packer comprises a steel rib with a conical face; the steel rib is sequentially provided with a sealing barrel, a push barrel and a positioning barrel; the inner bore of the sealing barrel is provided with a conical face; the conical face of the steel rib is matched with the conical face of the sealing barrel; the positioning barrel is provided with a fixed lock ring, a positioning sleeve and a deblocking shear pin; an inner bore at the lower end of the push barrel is provided with a moving lock ring; a sealing ring A is arranged between the push barrel and the positioning barrel; a sealing ring B is arranged between the push barrel and the steel rib; and the steel rib is provided with an overflow pressure guide hole.

Description

technical field [0001] The invention relates to an oil field packer, in particular to a wedging compression packer. Background technique [0002] At present, the known packers have complex structures, too many components are used, and the performance is unstable, and a single setting method is used, and the setting sealing effect is not ideal. Contents of the invention [0003] In order to overcome the disadvantages of existing packers such as complex structure, unstable performance and single setting method, the present invention provides a wedging compression packer adopting a new setting method. [0004] The technical solution adopted by the present invention to solve its technical problems is: [0005] A wedging compression packer is characterized in that it includes a steel frame with a conical surface, a sealing cylinder, a push cylinder, and a positioning cylinder are sequentially installed on the steel frame, the inner hole of the sealing cylinder is provided with...

Claims

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Application Information

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IPC IPC(8): E21B33/128
Inventor 霍惠春
Owner 大安市创新机械工程技术有限责任公司
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