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Study on MTEM frequency-domain ratio method and apparent resistivity calculation
Zhang WenWei1,2,3; Zhen QiHui1,2,3; Di QingYun1,2,3
2018-10-01
发表期刊CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
卷号61期号:10页码:4171-4181
摘要Apparent resistivity has played a significant role in electromagnetic exploration and is able to be used for preliminary interpretation. Multi-channels transient electromagnetic method defines the apparent resistivity using the peak time of earth impulse response. However, traditional method evaluating peak-time apparent resistivity need to recover the entitle earth impulse response. In this paper, a new frequency-domain ratio method is proposed by studying characteristics of both the impulse response and its spectrum. Apparent resistivity is obtained by calculating the peak time of the general spectrum using reference spectrum and scaling factor between the reference spectrum and the general one. Only single-point spectrum is needed to get the peak time, instead of estimating the entitle earth impulse response. In practical, multiple-points spectrum can be exploited to obtain the averaged apparent resistivity. The results from synthetic and field data show that frequency-domain ratio method gives reasonable apparent resistivity in one dimensional media.
关键词MTEM Frequency-domain ratio method Earth impulse response Peak time Apparent resistivity
DOI10.6038/cjg2018L0744
关键词[WOS]SYSTEM
语种英语
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000447958300022
出版者SCIENCE PRESS
引用统计
文献类型期刊论文
条目标识符http://ir.iggcas.ac.cn/handle/132A11/89162
专题页岩气与地质工程院重点实验室
通讯作者Di QingYun
作者单位1.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Zhang WenWei,Zhen QiHui,Di QingYun. Study on MTEM frequency-domain ratio method and apparent resistivity calculation[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(10):4171-4181.
APA Zhang WenWei,Zhen QiHui,&Di QingYun.(2018).Study on MTEM frequency-domain ratio method and apparent resistivity calculation.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(10),4171-4181.
MLA Zhang WenWei,et al."Study on MTEM frequency-domain ratio method and apparent resistivity calculation".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.10(2018):4171-4181.
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