Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

a plunger

A plunger and jacket technology, applied in the field of gas production tools, can solve the problems that the plunger cannot slide freely, it is difficult to adapt to deep wells or ultra-deep wells, etc., and achieve the effect of increasing the scope of use and improving the effect of drainage and gas production

Active Publication Date: 2022-01-21
CHINA PETROLEUM & CHEM CORP +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the exploration and development of oil and gas wells has been developing towards deep and ultra-deep layers, but the plunger in the prior art cannot slide freely in the variable-diameter combined tubing string, so it is difficult to adapt to deep or ultra-deep wells

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 plunger
  • a plunger
  • a plunger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing.

[0033] figure 1 A plunger 100 according to the invention is shown. Such as figure 1 As shown, the plunger 100 includes a fishing neck 1 , an upper casing 5 , a lower casing 9 and a cartridge assembly 30 . Wherein, the salvage neck 1 is columnar. The upper casing 5 is cylindrical, arranged at the lower end of the fishing neck 1, and can move axially relative to the fishing neck 1. A first communication hole 103 communicating with the inside and outside is provided on the wall of the upper casing 5 . The lower jacket 9 is cylindrical and is arranged on the lower end of the upper jacket 5 , and its inner cavity communicates with the inner cavity of the upper jacket 5 . Furthermore, the lower casing 9 is configured to be able to move relative to the upper casing 5 in the axial direction. A second communication hole 110 is provided on the wall of the lower outer casing 9 t...

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 relates to a plunger, which includes a fishing neck; a cylindrical upper casing which is arranged at the lower end of the fishing neck and can move axially relative to the fishing neck; ; The connected type is arranged on the lower end of the upper jacket and can move axially relative to the lower casing of the upper jacket, and the wall of the lower jacket is provided with a second communication hole connecting the inside and outside; one end is arranged on the outer wall of the upper jacket and the other end The rubber cartridge assembly arranged on the lower jacket, the rubber cartridge assembly has a rubber cartridge, in the first state, the second communication hole and the first communication hole are cut off at the inner cavity of the lower jacket and the rubber cartridge expands under force, in the second state , the second communication hole communicates with the first communication hole in the inner cavity of the lower casing and the rubber cartridge is retracted. The plunger can be used for variable diameter tubing, which improves its application range, especially for deep and ultra-deep oil and gas wells.

Description

technical field [0001] The invention relates to the technical field of gas extraction tools, in particular to a plunger. Background technique [0002] The plunger gas lift technology uses the plunger as the mechanical interface between gas and liquid, and uses the energy of the gas well itself to push the plunger to lift the liquid periodically in the tubing, which can effectively prevent the gas from moving up and the liquid from falling back, and reduce the "slipping" effect of the liquid , play the role of aiding drainage and increase the efficiency of intermittent gas lift. [0003] At present, the exploration and development of oil and gas wells has been developing towards deep and ultra-deep layers, but the plunger in the prior art cannot slide freely in the variable-diameter composite tubing string, so it is difficult to adapt to deep or ultra-deep wells. Therefore, it is necessary to invent a plunger to adapt to the variable diameter combined oil pipe. Contents of...

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): F04B53/14E21B33/127
CPCF04B53/14F04B53/143E21B33/127
Inventor 胡顺渠侯治民陈晨刘涛刘通
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
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