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

Method and system for gas pumping of high-gas coal mines

A coal mine gas and gas technology, applied in the field of gas drainage methods and drainage systems in high-gas coal mines, can solve the problems of low gas drainage efficiency, unstable gas drainage for a long time, safety hazards, etc., and achieve gas drainage efficiency High, increased safety, low operating costs

Inactive Publication Date: 2012-12-19
YUWU COAL CO LTD OF SHANXI LUAN GRP +1
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a gas drainage method and a gas extraction system in a high-gas coal mine, so as to solve the safety hazards caused by the gas drainage in the caving zone of the existing high-gas coal mine
The invention can also solve the problem of low gas extraction efficiency
The present invention can also solve the problem that the prior art cannot extract gas in a long-term and stable manner

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
  • Method and system for gas pumping of high-gas coal mines
  • Method and system for gas pumping of high-gas coal mines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0027] Such as figure 2 As shown, the gas drainage method in a high-gas coal mine according to an embodiment of the present invention includes:

[0028] The wellhead of the horizontal well (ie the wellhead of the horizontal well) is set on the ground;

[0029] Rebuild the ramp to form a ramp segment;

[0030] Then arrange the horizontal section of the horizontal well in the fracture zone, make the horizontal section and the deflection section communicate with the wellhead of the horizontal well, and set the surface wellhead drainage device 21 at the wellhead of the horizontal well; if the horizontal well is located in the caving zone, the steel pipe is very If it is located in a curved subsidence zone, the efficiency of gas ex...

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 provides a method and a system for gas pumping of high-gas coal mines. The method for gas pumping of high-gas coal mines includes: setting a wellhead of a horizontal well on the ground; setting the horizontal well communicated with the wellhead of the horizontal well in a fissure zone; and setting a vacuum pump on the ground and enabling the vacuum pump to extend into the wellhead of the horizontal well to pump the horizontal well. The system for gas pumping of high-gas coal mines comprises the horizontal well and the pump, wherein the horizontal well is arranged in the fissure zone and communicated with the ground, and the pump is positioned on the ground and communicated with the horizontal pump. Horizontal well drilling and coal mining theories are organically combined to transplant underground works to the ground for implementation, so that risks of coal mine underground construction are reduced.

Description

technical field [0001] The invention relates to the field of coal mining, in particular to gas extraction in high-gas coal mines, that is, a gas drainage method and a gas extraction system in high-gas coal mines. Background technique [0002] According to the mining theory, with the mining of coal, the overlying strata of the mining face will form caving zones, fissure zones and curved subsidence zones from bottom to top, see figure 1 shown. Caving zone 6: Temporarily supported by supports in the stope, and has collapsed in the goaf, arranged regularly or irregularly, and the height is generally 3 to 4 times the mining height; Fissure zone 5: Although it has been broken into blocks, it is still Neatly arranged, about 15 times the mining height, the cracks are well developed, and it is an important area to prevent water seepage accidents. Curved subsidence zone 4: The rock formation is less damaged, resulting in the formation of subsidence basins on the surface. The strong...

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
IPC IPC(8): E21F7/00
Inventor 吴有增胡鹏张和茂戴先根
Owner YUWU COAL CO LTD OF SHANXI LUAN GRP
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