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Sliding sleeve opening device

A technology of opening device and sliding sleeve, which is applied to the valve device of wellbore/well, production fluid, wellbore/well components, etc., can solve problems such as low work efficiency, and achieve the effect of improving salvage work efficiency

Active Publication Date: 2016-06-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the disadvantages in the prior art that the opening tools can only be fished out of the wellbore one by one and the work efficiency is low

Method used

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  • Sliding sleeve opening device
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  • Sliding sleeve opening device

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Experimental program
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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing.

[0024] Such as figure 1 , figure 2 As shown, the sliding sleeve opening device 10 of the embodiment of the present invention includes a hooking member 11 for hooking connection with the sliding sleeve, and a ball seat 12 connected with the hooking member 11 .

[0025] When it is necessary to carry out the fishing work of the sliding sleeve opening device 10, the external fishing tool is lowered into the wellbore, and the external fishing tool is first connected with the first-stage sliding sleeve opening device 10 and the first-stage sliding sleeve opening device 10 is removed from the sliding sleeve. peel off. Then, continue to lower the external fishing tool, and the external fishing tool will push the first-stage sliding sleeve opening device 10 to move to the depth of the wellbore. Until the first-stage sliding sleeve opening device 10 is connected with the second-s...

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PUM

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Abstract

The invention provides a sliding sleeve opening device which comprises a clamping hanging part and a ball seat, wherein the clamping hanging part comprises a connecting section, a clamping hanging section connected with the connecting section and a first fluid channel; the ball seat comprises a connecting end connected with the connecting section, a salvage end opposite to the connecting end and a second fluid channel formed between the connecting end and the salvage end. The salvage end comprises a guiding part and a clamping part. Two adjacent sliding sleeve opening devices can form one whole by enabling the salvage end of one sliding sleeve opening device to be in series connection with the other sliding sleeve opening device, so that all the sliding sleeve opening devices can be in series connection to form a whole. Thus, a whole sliding sleeve opening device string formed by series connection can be fished out of a shaft in one time through a fishing tool, and the fishing working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas field reservoir transformation, in particular to a sliding sleeve opening device. Background technique [0002] As the development of oil and gas reservoirs advances towards low-permeability and tight reservoirs, the traditional tools and technologies supporting them no longer meet the needs. The sliding sleeve is one of the key tools for communicating the annulus of the oil casing and realizing stratified fracturing during the fracturing process. In the process of oil and gas well completion and gas testing, the oil casing annulus is connected through the opening action of the sliding sleeve to realize circulation, fluid replacement, sand fracturing and other operations. A single-layer construction operation only needs one sliding sleeve, but multi-layer segmental construction requires multiple sliding sleeves to be connected in series on a string. During construction, one stage is opened fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/10E21B43/26
CPCE21B34/10E21B43/26
Inventor 甘振维戚斌胡顺渠侯治民王强杨先利刘涛王磊潘健赵伟周怡君
Owner CHINA PETROLEUM & CHEM CORP