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Fracturing sliding sleeve for large-drift-diameter intelligent ball injecting

A fracturing sliding sleeve, large-diameter technology, applied in wellbore/well valve devices, wellbore/well components, production fluids, etc., to achieve the effect of prolonging the life of a single well, ensuring integrity, and strong adaptability

Active Publication Date: 2019-05-03
SHANGHAI BRANCH CHINA OILFIELD SERVICES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydraulic sliding sleeve can only be used for one stage alone, and it needs to be used in conjunction with the ball-pitching sliding sleeve to complete multi-stage fracturing

Method used

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  • Fracturing sliding sleeve for large-drift-diameter intelligent ball injecting
  • Fracturing sliding sleeve for large-drift-diameter intelligent ball injecting
  • Fracturing sliding sleeve for large-drift-diameter intelligent ball injecting

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Embodiment Construction

[0039] Herein, the detailed content and technical description of the present invention will be further described with a preferred embodiment, but it should not be construed as a limitation of the implementation of the present invention.

[0040] Please refer to Figure 1-3 , figure 1 It is a structural schematic diagram of the practical fracturing sliding sleeve; figure 2 yes figure 1 Partial enlarged view of A in middle; image 3 yes figure 1 Partial enlarged view of B in middle. Such as Figure 1-3 As shown, the fracturing sliding sleeve of the present invention includes an upper joint 1, a connecting sleeve 9, a sliding sleeve body 10, and a lower joint 15 connected in sequence, and the fracturing sliding sleeve also includes: a hydraulic cylinder sleeve 2, a hydraulic cylinder 3, and an elastic seal 4 and elastic body 5; the hydraulic cylinder liner 2 is installed in the upper joint 1; the liquid cylinder 3 is installed in the liquid cylinder liner 2; the elastic bo...

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PUM

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Abstract

The invention discloses a fracturing sliding sleeve for large-drift-diameter intelligent ball injecting. The fracturing sliding sleeve comprises an upper joint, a connecting sleeve, a sliding sleeve body and a lower joint which are connected in sequence, and the fracturing sliding sleeve is characterized in that a liquid cylinder sleeve, a liquid cylinder, an elastomer and an elastic sealing partare further included; the liquid cylinder sleeve is mounted in the upper joint; the liquid cylinder is mounted in the liquid cylinder sleeve; the elastomer is mounted in the liquid cylinder; and the elastic sealing part sleeves the elastomer.

Description

technical field [0001] The invention relates to a fracturing sliding sleeve, in particular to a fracturing sliding sleeve used for large-diameter intelligent pitching of oil and gas exploitation equipment. Background technique [0002] In the process of oil and gas exploitation, fracturing operation is a very effective production stimulation method, especially layered stimulation technology has become an important means of production stimulation in low permeability oil and gas reservoirs, sliding sleeve segmental fracturing technology is the first choice for unconventional oil and gas resources exploitation. It is an important means, which is widely used in fracturing stimulation of vertical wells, directional wells, and horizontal wells in shale gas, low-permeability production layers, and thin oil layers. [0003] Conventional sliding sleeves include ball sliding sleeves, hydraulic sliding sleeves and mechanical switch sliding sleeves. [0004] The ball-throwing sliding s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/26E21B34/14
Inventor 田炳周郭士生易会安李斌姚锋盛李伯仁唐亮陈光利朱长林
Owner SHANGHAI BRANCH CHINA OILFIELD SERVICES