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Composite rubber sleeve device

A technology of composite glue and rubber cylinder, which is applied in wellbore/well components, earthwork drilling, sealing/packing, etc. The sealing effect is safe, reliable and easy to use

Active Publication Date: 2015-02-25
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a composite rubber cartridge device, which overcomes the shortcomings of the above-mentioned prior art, and can effectively solve the problem of low reliability and existence safety of conventional packers. Hidden problems

Method used

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  • Composite rubber sleeve device
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Embodiment Construction

[0016] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.

[0017] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the description attached to the description. figure 1 For example, the positional relationship of front, back, up, down, left, right, etc. is based on the attached figure 1 determined by the layout direction.

[0018] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:

[0019] as attached figure 1 , 2 As shown, the composite rubber cartridge device includes a central rod 1, claw sleeves 2, sleeves and push cylinders 3; an upper card platform 4 is fixed outside the upper end of the central rod 1, and a first shear nail is passed outside the m...

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Abstract

The invention relates to the technical field of oil field rubber sleeves, in particular to a composite rubber sleeve device. The composite rubber sleeve device comprises a center rod, a claw sleeve, a sleeve and a push cylinder, wherein an upper clamping table is fixed at the outer side of the upper end of the center rod; the claw sleeve is fixedly connected to the outer side of the middle of the center rod through a first shear pin; upper elastic clamping claws capable of inwards contraction are distributed at the lower end of the claw sleeve; upper clamping claw bosses are fixed at the lower ends of all the upper elastic clamping claws; and upper clamping claw boss mounting grooves fitting the upper clamping claw bosses are formed in the outer side of the center rod. The composite rubber sleeve device is reasonable and compact in structure, is convenient to use, realizes the purpose of long-time sealing through the cooperation of the center rod, the claw sleeve, the sleeve, the push cylinder, a self-expanding rubber sleeve when contacting water or oil, an expansive rubber sleeve, the first shear pin and a second shear pin, has the characteristics of good sealing effect, safety and reliability, improves the production efficiency, and prevents the potential safety hazard.

Description

technical field [0001] The invention relates to the technical field of oilfield rubber cartridges, and relates to a composite rubber cartridge device. Background technique [0002] During the construction operations of conventional wells and special wells, such as mixed production and separate production, water control and water plugging, and reservoir reconstruction, it is often necessary to isolate different reservoirs in each wellbore. This construction technology needs a new tool that can be used in conjunction with the pitching ball seat and does not affect the construction operations such as the later pipe string running. However, the conventional packer can only seal quickly and effectively, and the seal will fail after a long time. Therefore, conventional control tools have potential safety hazards and low tool reliability. Contents of the invention [0003] The invention provides a composite rubber cartridge device, which overcomes the above-mentioned deficiencie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/127
CPCE21B33/127E21B33/1277
Inventor 陈若铭李晓军张胜鹏张昕李富强姚小龙
Owner BC P INC CHINA NAT PETROLEUM CORP
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