基于TEM探测煤岩水力压裂有效影响范围的实验研究  

Experimental Study of Effective Scope of Hydraulic Fracturing in Coal and Rock Seam Based on Transient Electromagnetic Method

作　　者：张瑞林[1,2] 谷志鹏 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作454003 [2]河南工程学院安全工程学院,郑州451191

出　　处：《煤炭技术》2015年第3期95-98,共4页Coal Technology

基　　金：国家自然科学基金资助项目(51174082);河南省重点科技攻关资助项目(132102210485);河南工程学院博士基金资助项目(D2013018);河南工程学院科技创新团队资助项目(CXTD2014002)

摘　　要：基于瞬变电磁法的工作原理,分析了探测煤岩水力压裂过程中高压水的流动方向和扩展范围的可行性,并在新安矿14230工作面进行了实验研究。通过对实验区域水力压裂前后煤层及其顶板二次电磁场变化规律的探测和分析,直观地确定了煤岩体遭受水力压裂后高压水沿煤层走向、倾向以及法向的流动方向和影响范围。Based on the working principle of the transient electromagnetic method(TEM),the feasibility has been analyzed to detect the flow direction and extended range of high pressure water within the coal seam during the process of hydraulic fracturing. Meanwhile a series of experiments has been carried out at the No.14230 working face in Xin′ an coal mine. According to the conclusions of the detection and explain to the changing disciplines of the secondary electromagnetic field of coal seam and its roof in the experimental area before and after the hydraulic fracturing, the normal flow direction and influence scope of high pressure water along the coal seam under the action of the hydraulic fracturing can be intuitively made clear.

关 键 词：瞬变电磁法 煤岩层 水力压裂 影响范围 卸压增透 

分 类 号：P631.325[天文地球—地质矿产勘探]