Numerical Study on Shocking Coal Seam of Multi-points Explosion with High-pressure Gas

被引：1

作者：

Gao Kun ^{[1
]}

Wang Ji-ren ^{[1
]}

Jia Bao-sha ^{[1
]}

机构：

[1] Liaoning Tech Univ, Coll Safety Sci & Engn, Fuxin 123000, Peoples R China

来源：

NATURAL RESOURCES AND SUSTAINABLE DEVELOPMENT II, PTS 1-4 | 2012年 / 524-527卷

关键词：

gas extraction; low-permeability coal seams; high-pressure air; numerical simulation;

D O I：

10.4028/www.scientific.net/AMR.524-527.450

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The permeability of coal seam is an important parameter for the gas extraction and gas outburst control. However, most of the coal seams are low-permeability with outstanding characteristic in China. Therefore, it is a good technology to provide the theoretical basis for increasing the permeability of low-gas- permeability coal seam by shocking with high-pressure air. Based on the percolation theory of porous media and combining the gas pressure change after shocking the coal seam with high-pressure air, the solid-gas coupled mathematical model is presented for the flow in the coal seam. By applying the software, the numerical simulation is computed and analyzed for the gas pressure evolution owing to the multi-spot continuous shocking the coal seam by the high-pressure air under the different pressure values and strata pressure.

引用

页码：450 / 454

页数：5