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针对矿井煤层透气性差的瓦斯地质条件并结合生产实践,研究了低透气性煤层瓦斯抽采的安全技术措施,确立了用高位钻孔进行瓦斯抽采,局部瓦斯涌出异常及工作面过钻场期间利用埋管配合高位钻孔进行抽采的综合治理方式;收到了显著的技术经济效果。
According to the gas geological conditions with poor gas permeability in coal seam and the production practice, the safety technical measures of gas drainage in low permeability coal seam are studied. The gas drainage with high level drilling, gas emission anomalies in local area, During the use of buried pipe with high drilling for comprehensive management of extraction; received a significant technical and economic results.