IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
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
Source PublicationCHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
Volume61Issue:10Pages:4171-4181
AbstractApparent 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.
KeywordMTEM Frequency-domain ratio method Earth impulse response Peak time Apparent resistivity
DOI10.6038/cjg2018L0744
WOS KeywordSYSTEM
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000447958300022
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/89162
Collection页岩气与地质工程院重点实验室
Corresponding AuthorDi QingYun
Affiliation1.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
Recommended Citation
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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