高瓦斯低透气性煤层水力压裂技术的试验研究  

Experimental study on hydraulic fracturing technology in high gas and low permeability coal seam

作　　者：孙东生[1] 刘健[1] 蔡文鹏[1] 姜二龙[1] 

机构地区：[1]安徽理工大学能源与安全学院,安徽淮南232001

出　　处：《中国安全生产科学技术》2013年第9期49-53,共5页Journal of Safety Science and Technology

摘　　要：由于某矿煤层透气性低、瓦斯含量高,现有瓦斯抽采技术不能满足瓦斯抽采的需要,因而采用了水力压裂技术增透措施进行试验。通过该矿11-2煤层的工业试验,分析了水力压裂技术的参数选择、压裂范围、煤层透气性、压裂后抽采效果等。试验研究得出,经过水力压裂,煤层的透气性提高了22.46倍,煤层瓦斯抽采效率也大幅提高。Due to the high gas content and low permeability in a coal mine, the existing gas extraction technology can not meet the need for gas extraction, so hydraulic fracturing technology was used. Through industrial test of coal seam 11-2, the parameter selection, fracturing range, the permeability of coal seam and the effect of extraction before and after the hydraulic fracturing applied were analyzed. The experiment results showed that the permeability of coal seam increased 22. 46 times and the efficiency of coal seam gas extraction improved sharply after hydraulic fracturing.

关 键 词：水力压裂 低透气性 瓦斯抽采 

分 类 号：X936[环境科学与工程—安全科学]