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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。
Through-hole drilling pre-pumping low permeability coal seam gas, a long time, the effect is not obvious, seriously affecting the mining pit alternately. Based on the principle of water jet cutting and hydraulic fracturing theory, combined with the mining conditions of Hongyang No.2 Coal Mine and the actual situation of gas, a comprehensive anti-seepage technology of hydraulic cutting (fracturing) Hole technology and technology, the effect of enhanced anti-coal seam to be tested.