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Downhole fracturing sliding sleeve tool switch

A technology of fracturing sliding sleeves and switchgear, which is applied in the direction of production fluid, wellbore/well components, wellbore/well valve devices, etc., which can solve the problems of poor sealing and poor identification effect, and achieve uniform force , good sealing effect and high recognition effect

Active Publication Date: 2022-04-01
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a downhole fracturing sliding sleeve tool switch, which is used to solve the problems of poor recognition and poor sealing of the existing sliding sleeve switch

Method used

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  • Downhole fracturing sliding sleeve tool switch
  • Downhole fracturing sliding sleeve tool switch
  • Downhole fracturing sliding sleeve tool switch

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Embodiment Construction

[0053] Below in conjunction with accompanying drawing, the present invention will be further described:

[0054] This downhole fracturing sliding sleeve tool switch includes an identification mechanism 1-1, a transmission mechanism 1-2, a locking mechanism 1-3, and a sealing mechanism 1-4. The identification slider in the identification mechanism 1-1 is connected to the slide rule 5-2 to control the longitudinal movement of the transmission shaft 3, the gear identification slider 4 controls the rotation of the transmission shaft 3 through the transmission rack 4-2, and the balance slider maintains the balance of the switch; Slide block provides longitudinal movement and axial movement for transmission shaft 3, and transmission shaft 3 is transmitted to the dog tooth cam 14 of locking mechanism 1-3, and dog tooth cam 14 rotates, ejects dog tooth 15, and dog tooth 15 is fixed on the slide. The locking boss of the sleeve; the sealing slider 16 of the sealing mechanism 1-4 is move...

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Abstract

The invention relates to an underground fracturing sliding sleeve tool switch which comprises an identification mechanism, a transmission mechanism, a clamping and locking mechanism and a sealing mechanism, the transmission mechanism comprises a shell, a transmission shaft and a transmission spring, the shell is a cylinder, and a stepped hole is formed in the shell along a central shaft; the recognition mechanism comprises an axial recognition sliding block, a gear recognition sliding block and a first balance sliding block, and the first balance sliding block and the sliding blocks are installed in corresponding installation holes of the shell in a telescopic mode respectively. The axial recognition sliding block is provided with a sliding ruler, the lower bottom face of the sliding ruler is an inclined face, the sliding ruler extends into the sliding ruler sliding way, and the gear recognition sliding block is provided with a transmission rack. The transmission shaft is integrally formed by a circular shaft, a transmission gear shaft and a regular hexagonal shaft from top to bottom; the clamping and locking mechanism comprises a dog tooth, a dog tooth cam and a dog tooth base; the sealing mechanism comprises sealing rubber, a sealing sliding block and a front cap. The safety and stability of the mechanism can be integrally improved, accurate recognition is truly achieved, and the sealing effect is good.

Description

technical field [0001] The invention relates to a downhole switch, in particular to a downhole fracturing sliding sleeve tool switch. Background technique [0002] With the rapid development of drilling technology, downhole layered fracturing tools are becoming more and more popular. As a component used to communicate the reservoir and the wellbore in the stratified fracturing tool, the downhole switch plays an irreplaceable role in improving the efficiency of oil extraction and optimizing energy allocation. [0003] The existing sliding sleeve switch can realize repeated opening and fracturing of multiple layers downhole, but the structure of running into the well is relatively complicated, and the identification effect of the sliding sleeve switch on the fracturing layer is not ideal. [0004] For example, the application number is 201310023260.6 for the downhole electro-hydraulic control fracturing sleeve. This device uses electronic tags as the electronic control signal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/14E21B43/26
CPCY02E10/10
Inventor 杨明刘巨保丁宇奇张闯黄茜查翔
Owner NORTHEAST GASOLINEEUM UNIV
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