Cable-sealed traversing well washing tool

A technology of cable sealing and tools, which is applied in drilling equipment, wellbore/well components, measurement, etc. It can solve the problems of testing instrument damage, failure of real-time circulation cleaning, etc., to achieve convenient connection and reduce drag force , the effect of simple operation

Active Publication Date: 2019-04-30
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cable seal penetrating well cleaning tool, which solves the problems that the current test construction of the cable instrument cannot be cleaned in real time, or there are safety hazards such as the lifting of the testing instrument and the damage to the instrument itself.

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
  • Cable-sealed traversing well washing tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The detailed description and technical content of the present invention are described below with the drawings, but the drawings are only for reference and description, and are not used to limit the present invention.

[0017] as attached figure 1 As shown, the cable seal crossing well cleaning tool includes tool outer cylinder 1, radial extrusion sealing device, and axial movement driving device. The axial movement driving device and the radial extrusion sealing device are all assembled outside the tool. In the cylinder, the axial movement driving device is assembled at the lower end of the radial extrusion sealing device, and the inner wall of the outer cylinder of the tool is provided with a conical protrusion that forces the radial extrusion sealing device to shrink radially. A circulation hole is provided on the outer cylinder of the tool, and the circulation hole is located above the inner protrusion of the conical surface. The radial extrusion sealing device incl...

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 a cable-sealed traversing well washing tool. The cable-sealed traversing well washing tool comprises an outer tool barrel, a radial squeezing sealing device and an axial movingdriving device, wherein the axial moving driving device and the radial squeezing sealing device are assembled inside the outer tool barrel; the axial moving driving device is assembled at the lower end of the radial squeezing sealing device; a conical surface inner bulge for forcing the radial squeezing sealing device to shrink radially is arranged on the inner wall of the outer tool barrel; a circulating hole is formed in the outer tool barrel; the circulating hole is formed above the conical surface inner bulge. A test cable can run through the well washing tool axially, and a well washingfluid cannot run through the well washing tool axially, but can only circulate in a well washing channel sideways, so that contact between a circuit joint of a test instrument and the well washing fluid is avoided while the connection between the cable and the test instrument is guaranteed; the cable-sealed traversing well washing tool has the characteristics of being simple in structure, convenient in operation and connection and reliable in sealing.

Description

technical field [0001] The invention relates to the technology of a well-flushing tool, in particular to a well-flushing tool for cable seal penetration. Background technique [0002] With the continuous diversification and development of oilfield development measures and technological means, cables, as signal transmission and energy transmission tools, play a role in connecting the ground operating system and downhole testing system, and are more and more used in oil and water well testing and implementation of technological measures. . The common way to use the cable is to directly connect the test instrument to run into the empty wellbore, and directly pull the instrument by the cable. This method cannot circulate the well during the test process, neither can guarantee the test effect, nor is it conducive to the safety of the instrument; another In this way, the wellbore is run into the tubing to establish a well flushing circulation channel. The cable passes through the...

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 Applications(China)
IPC IPC(8): E21B47/00
CPCE21B17/023E21B47/00
Inventor 王增林高恒超张峰李玉宝伊西锋任家敏张化强刘永顺杨慧刘建新
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap