瞬变电磁测量框外测深装置及其应用  

CONFIGURATION AND APPLICATION OF TEM OUTSIDE-LOOP SOUNDING

作　　者：贺建国 雷阳 郗昭 李继安 

机构地区：[1]核工业203研究所,陕西咸阳712000

出　　处：《地震地质》2013年第2期371-379,共9页Seismology and Geology

基　　金：中国核工业地质局EM67瞬变电磁测量及数据处理核心技术实验研究项目资助

摘　　要：文中提出了一种新的瞬变电磁测量装置——框外测量测深法,该方法通过在框外20～25m处测量测深点代替框中心回线测深。其特点是在精确测量时,该方法可以很好地抑制发射线圈自感噪音影响,提高精测分辨率,并加深探测深度。通过与中心回线装置对比测量实验及实际生产应用,认为该装置应用效果好,值得在今后工作中推广应用。In this paper we introduce a new kind of TEM sounding configuration： Outside-loop sounding configuration,which measures a sounding spot 20 -25 meters outside the loop instead of directly measuring with central-loop sounding. The characteristic of the outside-loop sounding configuration is that during high-precision sounding survey, this method can massively avoid the influence from the self-inductance of the transmitter loop compared to central-loop sounding, thus, can raise the resolu- tion and the exploration depth of the survey. By comparative tests with central-loop sounding configu- ration and application to a sounding survey carried out in Turpan-Hami Basin, Xinjiang,we find that the method is effective and shall be put in use in future.

关 键 词：瞬变电磁测深 中心回线 框外测深 吐哈盆地 

分 类 号：P631.325[天文地球—地质矿产勘探]