水力压裂技术在极薄煤层中的应用研究  

Application of Hydraulic Fracturing Technique in Thin Coal Seam

作　　者：黄文祥[1] 黄阳全[1] 

机构地区：[1]重庆工程职业技术学院,重庆402260

出　　处：《工业安全与环保》2017年第6期56-58,106,共4页Industrial Safety and Environmental Protection

摘　　要：本文针对磨心坡煤矿地质构造复杂、瓦斯压力大、煤层厚度较薄、透气性系数低、抽采难度大等问题,对该矿极薄煤层进行顺层钻孔的水力压裂试验研究,分析探讨了极薄煤层水力压裂半径的确定问题,然后进行了水力压裂试验,通过现场应用分析发现压裂区域比非压裂区域瓦斯纯量提高4倍以上,抽采效果良好;同时对于水力压裂过程中的各种现象和规律进行分析研究,为极薄煤层瓦斯抽采提供技术参考。This paper has made an experimental study on hydraulic fracturing of bedding drilling for thin coal seam in Mox- inpo in view of the problems existed, such as complicated geological structure, large gas pressure, thin coal seam thickness, low permeability coefficient, difficult to be extracted, etc. , analyzed and discussed the determining of hydraulic fracturing radius and made a hydraulic fracturing test. Through field application analysis, it is found that the gas amount of the fractur- ing area rises 4 times than that of the non - fracturing area and the extraction effect is good. At the same time, various phe- nomena and laws in the process of hydraulic fracturing are analyzed and studied, which provides technical references for gas extraction in extremely thin coal seam.

关 键 词：极薄煤层 水力压裂 瓦斯抽采 

分 类 号：TD712.6[矿业工程—矿井通风与安全]