基于AB-E_(y)方式频率域电磁测深的可行性研究  

Feasibility of Electromagnetic Sounding based on AB-E_(y) Array in Frequency Domain

作　　者：宋利虎[1] 罗国平[1] 刘镜竹 Song Lihu;Luo Guoping;Liu Jingzhu(Research Institute of Coal Geophysical Exploration,CNACG,Zhuozhou,Hebei 072750)

机构地区：[1]中国煤炭地质总局地球物理勘探研究院,河北涿州072750

出　　处：《中国煤炭地质》2022年第4期69-74,共6页Coal Geology of China

基　　金：中国煤炭地质总局科技创新项目“清洁能源勘查与开发利用技术研究”(ZMKJ-2021-ZX04)。

摘　　要：从正演模拟和工程实际应用等两个方面对比分析了AB-E_(y)方式与AB-E_(x)方式视电阻率曲线,论证了广域电磁法电偶源AB发射、垂直偶极极矩的水平电场Y方向分量E_(y)进行电磁频率测深的可行性,提出了频率域电磁测深法的一种新方法技术——AB-E_(y)方式。在电磁干扰区开展频率域电磁勘探时,可通过干扰源分析有目的性地选择E_(x)或E_(y)不同装置方式,避开电磁干扰,进而提高野外生产效率,降低野外施工成本。The apparent resistivity curves of AB-E_(y)array and AB-E_(x) array are compared and analyzed from forward modeling and practical application,the feasibility of electromagnetic sounding in frequency domain using thE_(y)-direction electric field component E_(y)produced by the electric dipole source AB is demonstrated,AB-E_(y)array of frequency domain electromagnetic sounding is proposed.Carrying out frequency domain electromagnetic exploration in the electromagnetic interference area,the different array of AB-E_(x)or AB-E_(y)can be selected to avoid electromagnetic interference,so as to improve the data acquisition quality and reduce field expenses.

关 键 词：频率域 电磁测深 AB-E_(y)方式 E_(y)视电阻率 

分 类 号：P631.3[天文地球—地质矿产勘探]