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3D pseudo-seismic imaging of transient electromagnetic data - a feasibility study

文献类型：期刊论文

作者Xue, G. Q.1; Gelius, L. -J.2; Xiu, L.3; Qi, Z. P.3; Chen, W. Y.1
刊名GEOPHYSICAL PROSPECTING
出版日期2013-06-01
卷号61页码:561-571
关键词Transient Electromagnetic Field Pseudo-seismic Field Inverse Q-transform Kirchhoff Integral Method 3d Tem Imaging
DOI10.1111/j.1365-2478.2012.01109.x
文献子类Article
英文摘要We investigate a pseudo-seismic approach based on the so-called inverse Q-transform as an alternative way of processing transient electromagnetic (TEM) data. This technique transforms the diffusive TEM response into that of propagating waves obeying the standard wave-equation. These transformed data can be input into standard seismic migration schemes with the potential of giving higher resolution subsurface images. Such images contain geometrical and qualitative information about the medium but no quantitative results are obtained as in model-based inversion techniques. These reconstructed images can be used directly for geological interpretation or in further constraining possible inversions. We extend the original Q-transform based on an electrical-source formulation to the case of a large-loop TEM source. Moreover, an efficient discrete version of the inverse of this modified Q-transform is presented using a regularization method. Application of this inverse transform to the measured TEM responses gives the corresponding pseudo-seismic data, which are input into a 3D migration scheme. We then use a 3D boundary element type of Kirchhoff migration to ensure high computational efficiency. This proposed method was applied to both synthetic data as well as field measurements taken from an engineering geology survey. The results indicate that the resolution of the TEM data is significantly improved when compared with standard apparent-resistivity plots, demonstrating that higher resolution 3D transient electromagnetic imaging is feasible using this method.
WOS关键词TIKHONOV REGULARIZATION ; MIGRATION
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000320136500038
资助机构Major State Basic Research Program of the People's Republic of China(2012CB416605) ; Major State Basic Research Program of the People's Republic of China(2012CB416605) ; Major State Basic Research Program of the People's Republic of China(2012CB416605) ; Major State Basic Research Program of the People's Republic of China(2012CB416605) ; Natural Science Foundation of China(41174090 ; Natural Science Foundation of China(41174090 ; Natural Science Foundation of China(41174090 ; Natural Science Foundation of China(41174090 ; 41174108) ; 41174108) ; 41174108) ; 41174108) ; Major State Basic Research Program of the People's Republic of China(2012CB416605) ; Major State Basic Research Program of the People's Republic of China(2012CB416605) ; Major State Basic Research Program of the People's Republic of China(2012CB416605) ; Major State Basic Research Program of the People's Republic of China(2012CB416605) ; Natural Science Foundation of China(41174090 ; Natural Science Foundation of China(41174090 ; Natural Science Foundation of China(41174090 ; Natural Science Foundation of China(41174090 ; 41174108) ; 41174108) ; 41174108) ; 41174108)
源URL[http://ir.iggcas.ac.cn/handle/132A11/62644]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Univ Oslo, Dept Geosci, N-0316 Oslo, Norway
3.Changan Univ, Coll Geol Engn & Geomat, Xian 710054, Peoples R China
推荐引用方式
GB/T 7714		 Xue, G. Q.,Gelius, L. -J.,Xiu, L.,et al. 3D pseudo-seismic imaging of transient electromagnetic data - a feasibility study[J]. GEOPHYSICAL PROSPECTING,2013,61:561-571.
APA Xue, G. Q.,Gelius, L. -J.,Xiu, L.,Qi, Z. P.,&Chen, W. Y..(2013).3D pseudo-seismic imaging of transient electromagnetic data - a feasibility study.GEOPHYSICAL PROSPECTING,61,561-571.
MLA Xue, G. Q.,et al."3D pseudo-seismic imaging of transient electromagnetic data - a feasibility study".GEOPHYSICAL PROSPECTING 61(2013):561-571.

入库方式： OAI收割

来源：地质与地球物理研究所

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