低透气性煤层增透技术与装备试验研究
宋佳林^1，2
（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）
摘要： 分析了低透气性煤层增透技术原理及低透气性煤层增透装备，针对低透气性煤层瓦斯抽采效率低、钻孔施工
量大等问题，提出了高压空气爆破增透工艺并研究了其应用。通过应用该技术，瓦斯抽采量和煤层透气性系数都有了显
著提高，达到了增大煤层透气性、提高瓦斯抽采效率的目的。
关键词： 低透气性煤层；瓦斯抽采；增透技术；衰减；透气性系数
中图分类号： TD712⁺.6     文献标志码： A     文章编号： 2095-0802-(2022)06-0024-02
Permeability Improvement Technology and Equipment Test of Low Permeability Coal Seams
SONG Jialin^1,2
（1. Shenyang Research Institute, China Coal Technology and Engineering Group, Fushun 113122, Liaoning, China; 2. State Key
Laboratory of Coal Safety Technology, Fushun 113122, Liaoning, China)
Abstract: This paper analyzed the principle of permeability improvement technology and permeability improvement equipment of
low permeability coal seams. Aiming at the problems of low gas drainage efficiency and large amount of drilling construction of
low permeability coal seams, it put forward the high -pressure air blasting permeability improvement technology, studied its
application. Through the application of this technology, the gas drainage volume and coal seam permeability coefficient have been
significantly improved, so as to increase the coal seam permeability and improve the gas drainage efficiency.

 Key words: low permeability coal seam; gas drainage; permeability improvement technology; attenuation; permeability coefficient