高瓦斯低透气性煤层增透技术实验研究  

Experimental Study on Permeability Enhancement Technology of High Gas and Low Permeability Coal Seam

作　　者：宋佳林 SONG Jia-lin(China Coal Technology and Engineering Group,Shenyang Research Institute,Fushun 113122,China;State Key Laboratory of Coal Safety Technology,Fushun 113122,China)

机构地区：[1]中煤科工集团沈阳研究院有限公司,辽宁抚顺113122 [2]煤矿安全技术国家重点实验室,辽宁抚顺113122

出　　处：《煤炭技术》2021年第11期97-100,共4页Coal Technology

基　　金：国家科技重大专项资助项目(2016ZX05045-004)。

摘　　要：针对高瓦斯低透气性煤层瓦斯抽采效率低,预抽钻孔工程施工量大等难题,提出高压空气爆破增透工艺并对其相关增透机理进行研究,分析提高煤层透气性的过程,确定了相关工艺参数,此技术可显著提高瓦斯抽采量和煤层透气性系数,达到增大煤透气性,提高瓦斯抽采效率的目的。In view of the problems of low efficiency of high gas drainage in low permeability coal seam and large amount of pre drainage and drilling,puts forward the technology of high pressure air blasting to increase the permeability of coal seam,studies the mechanism of the technology,analyzes the process of improving the permeability of coal seam,and determines the relevant technology parameters.This technology can significantly improve the gas drainage amount and the permeability coefficient of coal seam,so as to increase the permeability of coal seam and improve the efficiency of gas drainage the purpose of the rate.

关 键 词：低透气性煤层 瓦斯抽采 增透技术 渗透性系数 

分 类 号：TD712.6[矿业工程—矿井通风与安全]