摘要
穿层钻孔预抽低透气性煤层瓦斯,时间长、效果不明显,严重影响矿井采掘交替。基于水射流割缝和水力压裂理论原理,结合红阳二矿开采条件、瓦斯实际情况,在底抽巷实施了穿层钻孔水力割缝(压裂)综合增透技术试验,介绍了布孔技术工艺,对煤层增透效果进行检验。
Pre-pumping low permeability coal seam gas from bore hole needs a long time,besides, the effect is not obvious, seriously influencing mining alternately. Based on water jet cutting and hydraulic fracturing oretieal principles, considering the mining and gas situation of Hongyang second coal mine, implemented permeability-increasing technology combining hydraulic cutting with hydraulic fracturing test on borehole, introduced hole process technology, inspected coal seam permeability-increasing effec.
出处
《煤炭技术》
CAS
北大核心
2017年第3期199-201,共3页
Coal Technology
关键词
水力割缝
水力压裂
煤层增透
hydraulic cutting
hydraulic fracturing
coal seam permeability-increasing
