摘要
通过数值分析方法及现场工业试验等手段,对钻采近距离极薄保护层上覆煤层渗透率变化规律进行研究,得出钻采极薄下保护层上覆煤岩层渗透率分布特征、被保护煤层渗透变化规律等。研究成果对极薄保护层开采及卸压瓦斯抽采参数优化等具有一定的指导意义。
The permeablity change law in the overlaying coal seam while drilling the extra-thin protective coal seam is stidied by the way of numerical simulation and field test,the permeablity distribution characteristics and the permeablity change law in the protected coal seam ect.are obtained.The reseach results have some guide to exta-thin coal seam mining and releasing-gas drainage parameters optimization.
出处
《煤炭技术》
CAS
北大核心
2011年第4期72-74,共3页
Coal Technology
基金
淮南职业技术学院资助项目(HKJ09-4)
关键词
近距离
极薄保护层
钻采
渗透率
close
extra-thin protective coal seam
drilling
permeablity
