CAJ | 학술논문

煤储层透气性低是制约煤矿瓦斯抽采的关键因素，为提高煤储层透气性，增加瓦斯抽采效果，依靠水力压裂技术，采用穿层钻孔对煤层进行激励，形成裂缝，达到增透的目的。同时，采用理论分析和现场试验的方法，对穿层钻孔水力压裂技术进行研究。压裂后压裂孔透气性系数增加了6～12倍，抽放纯量提高了24～30倍。水力压裂技术大幅地提高了煤层的透气性和钻孔瓦斯抽放量，是一种有效的煤储层增透工艺。
매저층투기성저시제약매광와사추채적관건인소，위제고매저층투기성，증가와사추채효과，의고수력압렬기술，채용천층찬공대매층진행격려，형성렬봉，체도증투적목적。동시，채용이론분석화현장시험적방법，대천층찬공수력압렬기술진행연구。압렬후압렬공투기성계수증가료6～12배，추방순량제고료24～30배。수력압렬기술대폭지제고료매층적투기성화찬공와사추방량，시일충유효적매저층증투공예。
Low permeability of coal gas reservoir is the key factor restricting coal mine gas extraction .In order to improve the coal gas reservoir permeability and increase effect of gas extraction , the hydraulic fracturing with cross-seam boreholes was used to improve permeability of the coal seam .By using field test and theoretical a-nalysis , the hydraulic fracturing technology with cross -seam boreholes was studied .After fracturing , permeabil-ity coefficient of the fracturing boreholes increased by 6~12 times, and the quantity of the gas extraction in-creased by 24~30 times.The hydraulic fracturing technology greatly improves the permeability and gas extrac-tion quantity from the coal gas reservoir , which is a effective technology for improving permeability of coal gas reservoir .