煤田地质与勘探2016，Vol.44Issue(5)：49-52,4.DOI:10.3969/j.issn.1001-1986.2016.05.009
气相压裂增透技术在煤巷掘进工作面中的应用
Application of gas phase permeability-enhancing fracturing techniques in driving face of coal roadway
摘要
Abstract
Aimed at the problems such as large work volume, long extraction cycle and low gas drainage rate of holes for gas drainage in high-gas seam with low permeabilty in driving face of coal roadway, the paper presented gas phase permeability-enhancing fracturing technique, introduced the gas phase fracturing equipment and the technical principle, the scheme of fracturing operation in working face was determined, the pre-drainage effective-ness after gas phase fracturing was investigated and analyzed. The results show that the quantity of gas drainage of gas phase-fractured hole was four times more than that of ordinary hole, and the quantity of gas drainage of the pre-drainage hole increased by 2.4 times. The practice has proved that gas phase fracturing, as a technology and a technique for safe production in coal mine, is suitable for high gas and soft coal seam with low permeability. Gas phase fracturing has very important theoretical significance and wide application prospect.关键词
气相压裂/瓦斯抽采/低渗煤层/透气性Key words
gas phase fracturing/gas extraction/low permeability coal/permeability分类
资源环境引用本文复制引用
苏恒,曹运兴,陈莲芳..气相压裂增透技术在煤巷掘进工作面中的应用[J].煤田地质与勘探,2016,44(5):49-52,4.基金项目
国家科技重大专项课题(2011ZX05040-005)@@@@National Science and Technology Major Projiect(2011ZX05040-005) （2011ZX05040-005）
