摘要
为了提高瞬变电磁测深法对地探测的垂向分辨能力,文中研究了磁偶源瞬变电磁法快速成像的方法.详细讨论了电磁波与地震波在介质中的传播规律,分析了磁偶源瞬变电磁场在远区的响应特性.根据磁偶源瞬变电磁场与反射地震波的传播规律的相似性,提出了TEM资料拟地震快速成像解释的思路.理论模型正、反演计算结果表明方法理论是可行的,野外实测资料处理结果进一步说明了该方法是有效的.
In order to improve the vertical resolution of the transient electromagnetic method (TEM), we make a study of the interpretation system of TEM tomography. The law of propagation of electromagnetic wave and seismic wave in media and the response of TEM far-field are analyzed. According to the similarity between the propagation of magnetic dipole source TEM field and reflected-seismic wave, it is proposed to explain TEM data with the pseudo-seismic interpretation. The forward and inversion calculation results of theoretical model examples indicate that the theory is right. The processing results of field data demonstrate that this method is useful and practical.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第6期1400-1405,共6页
Chinese Journal of Geophysics
基金
中国科学院知识创新工程重要方向资助项目(CKZCX3_SW_134)
973项目(2002CB412702)资助
关键词
瞬变电磁测深
磁偶源
拟地震解释
Transient electromagnetic method, Magnetic dipole source, Pseudo-seismic interpretation
作者简介
郭文波,男,1966年生,高级工程师,1988年毕业于桂林冶金地质学院勘探地球物理专业,2000年获长安大学地球探测与信息技术专业硕士学位,现为西安交通大学在职博士研究生,主要从事勘探地球物理的解释理论和应用研究.E-mail:guowenbo2003@tom.com