Low-cost coal and gas co-mining system

A low-cost and gas-friendly technology, applied in the fields of fluid production, earth-moving drilling, wellbore/well components, etc., can solve the problem of high production cost, shorten the extraction cycle, shorten the mining connection cycle, and have broad application prospects.

Pending Publication Date: 2020-06-30
贵州联合安盛矿山技术服务有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Coal needs to be mined from the coal seam. There is not only coal in the coal seam, but also a large amount of gas. Gas is an important energy source for life and production, and it also needs to be mined. Although the existing mining methods can achieve coal and gas Co-exploitation of natural gas, but the extraction cost is high

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
  • Low-cost coal and gas co-mining system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A low-cost coal and gas co-production system, including a cracker 1 and a hole sealing device 3, the number of the crackers 1 is multiple and the crackers 1 are all fixed in the borehole 9, and multiple crackers 1 The hole-sealing device 3 is connected with the cracker 1 in order to seal the borehole 9. One end of the hole-sealing device 3 is connected with a lead-out rod 4, and the lead-out rod 4 is fixed with a starting bus connected to the pressure pipeline. Install this product between the bottom plate 7 and the top plate 8, test the pressure pipeline in the drill hole 9 and lead out the starting busbar, push the lead-out rod 4 to lead out the start-up busbar, when the lead-out rod 4 is pushed into the designed sealing depth, No longer advance the lead-out rod 4 to ensure that the resistance of the starting bus bar is stable, connect the pressure pipeline with the water injection pressure pump, pressurize the hole sealing device 3 in the borehole 9, and when the pres...

Embodiment 2

[0026] A low-cost coal and gas co-production system, including a cracker 1 and a hole sealing device 3, the number of the crackers 1 is multiple and the crackers 1 are all fixed in the borehole 9, and multiple crackers 1 The hole-sealing device 3 is connected with the cracker 1 in order to seal the borehole 9. One end of the hole-sealing device 3 is connected with a lead-out rod 4, and the lead-out rod 4 is fixed with a starting bus connected to the pressure pipeline. Install this product between the bottom plate 7 and the top plate 8, test the pressure pipeline in the drill hole 9 and lead out the starting busbar, push the lead-out rod 4 to lead out the start-up busbar, when the lead-out rod 4 is pushed into the designed sealing depth, No longer advance the lead-out rod 4 to ensure that the resistance of the starting bus bar is stable, connect the pressure pipeline with the water injection pressure pump, pressurize the hole sealing device 3 in the borehole 9, and when the pres...

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 low-cost coal and gas co-mining system, and aims to solve the problem of high cost during existing coal and gas co-mining. The product comprises a plurality of fracturing devices and hole sealing devices, the multiple fracturing devices are all fixed in drill holes, the multiple fracturing devices are connected in sequence, the hole sealing devices are connected with thefracturing devices and can seal the drill holes, one end of each hole sealing device is connected with a leading-out rod, and a starting bus connected with a pressure pipeline is fixed to each leading-out rod. By means of the low-cost coal and gas co-mining system, an anti-reflection desorption technology is used, high-concentration and large-flow gas extraction is achieved in a coal seam, the extraction lower limit is reduced to 8 m<3> / t or below, the single-hole extraction efficiency is improved by 10-25 times, the extraction period is greatly shortened, and low-cost coal and gas co-extraction is achieved; and according to the low-cost coal and gas co-mining system, the anti-reflection displacement technology is applied to continuous and rapid tunneling in a coal and gas outburst mine, low-gas operation is achieved in the coal seam, a gas outburst source in the coal seam is safely and effectively relieved, and the mining efficiency is improved by 5-10 times, and the extraction joining period is greatly shortened.

Description

technical field [0001] The invention relates to the field of coal and gas mining, in particular to a low-cost coal and gas co-mining system. Background technique [0002] Coal is a combustible black or brown-black sedimentary rock that usually occurs in rock formations or veins called coal beds or seams. Coal is mainly composed of carbon, together with varying amounts of other elements, mainly hydrogen, sulfur, oxygen and nitrogen. Historically, coal has been used as an energy resource, primarily burned for the production of electricity and / or heat, and also for industrial purposes such as refining metals, or producing fertilizers and many chemical products. [0003] Coal needs to be mined from the coal seam. There is not only coal in the coal seam, but also a large amount of gas. Gas is an important energy source for life and production, and it also needs to be mined. Although the existing mining methods can achieve coal and gas Natural gas is jointly exploited, but the e...

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): E21B43/26
CPCE21B43/26E21B43/006
Inventor 刘永进赵平陈存辉陈光
Owner 贵州联合安盛矿山技术服务有限公司
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