水力冲孔增透技术的数值模拟及现场应用  

Study on Numerical Simulation of Hydraulic Fracturing Increased Permeability Technology and Its Field Application

作　　者：郭旭锋 李江涛[2,3,4] 

机构地区：[1]河南平宝煤业有限公司,河南襄城461714 [2]煤炭科学研究总院沈阳研究院,辽宁沈阳110016 [3]东北大学资源与土木工程学院,辽宁沈阳110819 [4]煤矿安全技术国家重点实验室,辽宁抚顺113122

出　　处：《中州煤炭》2014年第2期37-39,42,共4页Zhongzhou Coal

摘　　要：为了研究煤体水力冲孔增透技术的机理及卸压增透强化抽放快速消突的效果,以平煤集团首山矿己16-17-11061工作面为工程背景,采用RFPA-Flow数值模拟软件分析水力冲孔过程中裂隙的扩展规律,并对剪应力及水压力的演化过程进行了研究。根据理论研究,确定了现场水力冲孔工艺钻孔布置参数,通过对冲出煤量及瓦斯抽放量的考察分析表明,水力冲孔瓦斯治理效果显著。To study the mechanism of hydraulic flushing in hole and speedy outburst prevention by gas drainage using pressure relief and permeability increasing technology,taking Shoushan Coal Mine of Pingdingshan Coal Group as an engineering background,the crack e- volution law in the progress of hydraulic fracturing was analysed by using RFPA-Flow numerical simulation software,at the same time, the evolutionary process of shear stress and water pressure were also studied. According to the theory research,borehole layout parame- ters of hydraulic flushing in hole were determined. The investigation of the coal output and gas emission quantity shows that the gas con- trol effects of hydraulic flushing in hole are very significant.

关 键 词：水力冲孔 RFPA-Flow 增透 瓦斯抽放 

分 类 号：TD713.34[矿业工程—矿井通风与安全]