Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Downhole Electro-hydraulic Control Fracturing Sleeve

A fracturing sliding sleeve, electro-hydraulic control technology, applied in wellbore/well components, wellbore/well valve devices, production fluids, etc., can solve problems such as inconvenient switching operations, and achieve simple and convenient operation and high work efficiency. Effect

Active Publication Date: 2015-09-09
PETROCHINA CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of inconvenient switching operation of the electro-hydraulic control fracturing sleeve switch in the prior art, the present invention provides a downhole electro-hydraulic control fracturing sleeve device, the downhole electro-hydraulic control fracturing sleeve can automatically control the sliding Set of switches, easy to operate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Downhole Electro-hydraulic Control Fracturing Sleeve
  • A Downhole Electro-hydraulic Control Fracturing Sleeve
  • A Downhole Electro-hydraulic Control Fracturing Sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The downhole electro-hydraulic controlled fracturing sliding sleeve of the present invention will be described in detail below with reference to the accompanying drawings. A downhole electro-hydraulic controlled fracturing sliding sleeve includes an outer sleeve 7 and an inner sleeve 9 arranged in the outer sleeve 7. The two ends of the inner sleeve 9 are connected to the outer sleeve 7 in a sealed manner, and the inner sleeve 9 can run along Along with the axial sliding of the outer sleeve 7, a closed annular cavity 16 is provided between the outer sleeve 7 and the inner sleeve 9. In the annular cavity 16, a closed annular cavity 16 is sequentially connected along the axial direction of the outer sleeve 7. The first oil storage cavity 161, the annular sliding sleeve piston 163 fixedly connected to the inner sleeve 9, and the closed second oil storage cavity 162. The downhole electro-hydraulic controlled fracturing sliding sleeve also includes a hydraulic oil supply Devi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an underground electric hydraulic control fracturing sliding sleeve. A closed annular cavity (16) is arranged between an outer sleeve (7) and an inner sleeve (9), and a closed first oil storage cavity (161), an annular sliding sleeve piston (163) fixedly connected with the inner sleeve (9) and a closed second oil storage cavity (162) are sequentially connected in the annular cavity (16). By means of an oil supply device and a control device, hydraulic oil is injected into the first oil storage cavity or the second oil storage cavity so that the inner sleeve can be driven to move, opening and closing of the sliding sleeve can be automatically controlled by means of the underground electric hydraulic control fracturing sliding sleeve, the operation is simple and convenient, and the work efficiency is high.

Description

Technical field [0001] The invention relates to the technical field of oil exploitation, in particular to a downhole electro-hydraulic controlled fracturing sliding sleeve used in the process of oil well fracturing operations. Background technique [0002] As oilfield development enters the middle and late stages, in order to stabilize and increase production, oil wells need to be fractured. Fracturing sleeves are commonly used in oilfield fracturing and reconstruction. Most of the existing fracturing sleeves use ball-throwing mechanical operations. The disadvantages of this model are heavy workload and unsatisfactory fracturing effect. [0003] For this reason, in recent years, a new type of electro-hydraulic controlled fracturing sleeve has appeared at home and abroad. This device uses electronic tags as the electronic control signal carrier and wireless communication as the signal transmission method to achieve downhole unimpeded multi-stage fracturing control In construction, ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/267E21B34/06
Inventor 刘合郑立臣裴晓含高扬石白茹
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com