高分辨反射系数法在瞬变电磁探测煤矿水害中的应用效果  

Applicational effects of high resolution reflection coefficient method in transient electromagnetic prospecting coal mine water disaster

作　　者：段吉学[1] 刘江[2,3] 许德才 汶小岗[2,3] 冯西会 Duan Jixue;Liu Jiang;Xu Decai;Wen Xiaogang;Feng Xihui(Inner Mongolia Geological Survey Institute, Hohhot, Inner mongolia 010020, China;Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi'an, Shaanxi 710021, China;Shaanxi Coal Geophysical Prospecting and Surveying Co., Ltd., Xi'an, Shaanxi 710005, China;Shaanxi Coal Geolophy Group Co., Ltd., Xi'an, Shaanxi 710021, China)

机构地区：[1]内蒙古自治区地质调查院,内蒙古自治区呼和浩特市010020 [2]国土资源部煤炭资源勘查与综合利用重点实验室,陕西省西安市710021 [3]陕西省煤田物探测绘有限公司,陕西省西安市710005 [4]陕西省煤田地质集团有限公司,陕西省西安市710021

出　　处：《中国煤炭》2019年第8期25-30,44,共7页China Coal

基　　金：陕西省重点研发计划项目(2017GY-175)

摘　　要：在瞬变电磁法勘探中引入了高分辨反射系数法的概念,分析了反射系数法在瞬变电磁法勘探野外数据采集、资料处理与解释的适用性和工作方法。利用从野外采集的数据,分析了高分辨反射系数处理方法在瞬变电磁法的孔旁曲线的特征、视电阻率等值线断面图和煤层视电阻率等值线平面图等资料的反映,从点、线、面三方面介绍了高分辨反射系数法在瞬变电磁勘探中的地质效果。该方法不仅提高瞬变电磁勘探的纵向分辨率,还是一种快速、有效和实用的瞬变电磁勘探地形校正方法,其效果已被地质资料证实。The concept of high resolution reflection coefficient method was introduced into transient electromagnetic method exploration, and the applicability and working methods of reflection coefficient method in field data acquisition, data processing and interpretation of transient electromagnetic exploration were analyzed. Using field collected data, the reflects of the high resolution reflection coefficient processing method in interpreting the characteristics of hole-side curve, the cross-section map of apparent resistivity contour, the plane map of seam apparent resistivity contour and other data of the transient electromagnetic method were analyzed, the geological effects of high resolution reflection coefficient method in transient electromagnetic method exploration were introduced from point, line and plane. The method not only improved the longitudinal resolution of transient electromagnetic method, but also worked as a kind of quick, effective and practical topographic correction method of transient electromagnetic prospecting, and the effects were verified by geological data.

关 键 词：高分辨反射系数法 瞬变电磁勘探 应用效果 矿井水害 

分 类 号：P631[天文地球—地质矿产勘探]