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

A casing air tightness detection system

A detection system, a technology of casing gas, which is used in fluid tightness testing, liquid tightness measurement using liquid/vacuum degree, and detection of the appearance of fluid at the leak point. The problem of low detection efficiency

Active Publication Date: 2021-07-06
CHINA PETROLEUM & CHEM CORP +2
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the inner casing gas seal testing standard, the liquid-pneumatic power system is recommended. The main problems of this testing system are: large volume (pressurized system), high cost, low testing efficiency, and testing equipment will fail
When water vapor is mixed into the detection gas, it is easy to cause damage to the detection equipment
Since the helium-nitrogen mixed gas used for detection is manually proportioned, the efficiency is low
In addition, since the detection tool-packer has not formed a mature product, its performance is unstable, and there is a lack of technical means for on-site detection of the performance and working conditions of the packer, there are potential safety hazards in the casing airtightness detection process, and the detection results are unreliable. Strong convincing
In addition, the detection process is unreasonable, resulting in low detection efficiency

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 casing air tightness detection system
  • A casing air tightness detection system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0015] Such as figure 1 As shown, the casing air tightness detection system includes a high-pressure pressure unit, a mixing unit and a pneumatic winch unit, wherein,

[0016] The high pressure unit comprises an electric air compressor 1, an air storage tank 2 and a dry filter 3,

[0017] The mixing unit comprises a nitrogen generator 10 and a helium cylinder 11, a first pressure reducer 12 is provided downstream of the nitrogen generator 10, a second pressure reducer 13 is provided downstream of the helium cylinder 11, and the first pressure reducer 13 is provided downstream of the helium cylinder 11. The outlets of a pressure reducer 12 and th...

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 casing air tightness detection system, which comprises a high pressure unit, a mixing unit and a pneumatic winch unit, wherein the high pressure unit comprises an electric air compressor, an air storage tank and a dry filter , the mixing unit includes a nitrogen generator and a helium cylinder, a first pressure reducer is provided downstream of the nitrogen generator, a second pressure reducer is provided downstream of the helium cylinder, the first pressure reducer and the second pressure reducer The outlets of the mixers are all connected with a mixing instrument, an electric supercharger is arranged downstream of the mixing instrument, and a gas cylinder is arranged downstream of the electric supercharger; the pneumatic winch unit includes a winch control operating system and a secondary gas booster The compressor, the winch control operating system and the secondary gas booster are all connected to a pneumatic winch, a packer is connected to the pneumatic winch, and the thread of the packer is connected to a helium leak detector. The casing air tightness detection system of the invention detects the casing at the well head, and the detection result has high reliability.

Description

technical field [0001] The invention relates to an oil well equipment, more precisely, a casing air tightness detection system. Background technique [0002] In the inner casing gas seal testing standard, the hydraulic-pneumatic power system is recommended. The main problems of this testing system are: large volume (pressurized system), high cost, low testing efficiency, and testing equipment may fail. When water vapor is mixed into the detection gas, it is easy to cause damage to the detection equipment. Since the helium-nitrogen mixed gas used for detection is manually proportioned, the efficiency is low. In addition, since the detection tool-packer has not formed a mature product, its performance is unstable, and there is a lack of technical means for on-site detection of the performance and working conditions of the packer, there are potential safety hazards in the casing airtightness detection process, and the detection results are unreliable. Strong persuasion. In a...

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): G01M3/22
CPCG01M3/222G01M3/223
Inventor 张国荣殷宜平许国晨林刚王波沈霁肖仁江胡文东胡均申忠玺
Owner CHINA PETROLEUM & CHEM CORP
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