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A packer for oil field

A packer, oil field technology, applied in the directions of sealing/packing, drilling pipe, casing, etc., to achieve the effect of improving the speed, sealing effect, and tight setting

Active Publication Date: 2020-02-04
DAQING DANNUO PETROLEUM TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a packer for oil field, which has the advantages of improved setting speed and sealing effect, and solves the problems mentioned in the background technology

Method used

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  • A packer for oil field
  • A packer for oil field
  • A packer for oil field

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0018] see Figure 1-4 , a packer for oil fields, comprising a right joint 1, the left side of the right joint 1 is fixedly connected with a rubber sleeve 2, the left side of the rubber sleeve 2 is fixedly connected with a centralizing sleeve 3 through a spacer ring 9, and the bottom of the inner side of the centralizing sleeve 3 An outer ring sleeve 13 is fixedly connected, and the top of the outer ring sleeve 13 is fixedly connected with the bottom of the inner wall of the centralizing sleeve 3 through a spacer structure 14. The left side of the centralizing sleeve 3 is fixedly connected with a vertebral body 17, and the compression sleeve 15 is compressed through the vertebral body 17. Carry out concentric limit, and then through the evenly distributed positioning rods 16 o...

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Abstract

The invention relates to the technical field of oil and gas field extraction, and discloses a packer for an oil field. The packer for the oil field comprises a right joint; the left side of the rightjoint is fixedly connected with a glue cylinder; the left side of the glue cylinder is fixedly connected with a righting sleeve through a separation ring; the bottom of the inner side of the rightingsleeve is fixedly connected with an outer ring sleeve; the top of the outer ring sleeve and the bottom of the inner wall of the righting sleeve are fixedly connected through a limiting structure; theleft side of the righting sleeve is fixedly connected with a cone; a compression outer sleeve fixedly sleeves the left side of the cone; and a left joint is fixedly connected to the left side of the compression outer sleeve. In the packer for the oil field, the compression outer sleeve is concentrically limited through the cone, and then, is tightly connected through positioning rods uniformly distributed on the cone, so that the midway packing of the packer is prevented, the packer is tighter during packing, and the packing speed and the sealing effect are improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas field exploitation, in particular to a packer for an oil field. Background technique [0002] A packer refers to a downhole tool that has elastic sealing elements to seal off the annular space between pipe strings of various sizes and wellbore and between pipe strings, and isolate the production layer to control fluid production and protect the casing. In oil production engineering, the packer is used for delamination. The packer is designed with an oil production channel. When setting, the piston sleeve goes up, and the oil production channel is opened; after setting, the pressure of the upper layer acts on the balance piston, pushing the rubber cylinder upward. The unsealing pin is protected from shearing force; when unsealing, the unsealing pin is sheared by the friction between the rubber tube and the casing, the piston sleeve goes down, and the oil production channel is closed. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/127E21B17/10
CPCE21B17/1078E21B33/127
Inventor 李洪亮陈玉国际
Owner DAQING DANNUO PETROLEUM TECH DEV
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