Fictitious wave domain modelling and analysis of marine CSEM data
Fictitious wave domain modelling and analysis of marine CSEM data
复制标题
海洋 CSEM 数据的虚拟波域建模和分析
DOI:
10.1093/gji/ggz288
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发表时间:
2019-10
影响因子:
2.8
通讯作者:
Du Zhijun
中科院分区:
文献类型:
--
作者:
Lu Jie;Li Yuguo;Du Zhijun
Modelling marine controlled-source electromagnetic (CSEM) responses in the fictitious time domain is a novel approach, which facilitates the full exploration of EM diffusive properties in the fictitious wave domain (FWD). Concepts, such as reflections, refractions, diffractions and transmissions, which are used for the analysis of elastic wave propagation can thus be adopted in FWD for interpreting CSEM data. In this paper, we use a high-order finite difference time domain (FDTD) algorithm for modelling marine CSEM responses in both the fictitious time domain and the diffusive frequency domain. A complex frequency shifted perfectly matched layer (CFS–PML) boundary condition is adopted to the FDTD modelling. We demonstrate the performance of the CFS–PML boundary condition and validate the high-order FDTD code in the FWD with the half-space sea water model and in the frequency domain with the 1-D canonical reservoir model. We investigate and analyse the propagation characteristics of electromagnetic fields in the FWD, where we apply wave propagation concepts to interpret marine CSEM data. Similarities between wave and field propagations relevant for marine CSEM data are demonstrated through several 1-D to 3-D numerical examples.
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DOI:
10.1093/gji/ggx382
发表时间:
2018
期刊:
Geophyscial Journal International
影响因子:
--
作者:
Gang Li;Yuguo Li;Bo Han;Zhan Liu
通讯作者:
Zhan Liu
影响因子:
2.8
作者:
C. Schwarzbach;Ralph-Uwe Börner;K. Spitzer
通讯作者:
C. Schwarzbach;Ralph-Uwe Börner;K. Spitzer
影响因子:
3.3
作者:
Constable, Steven
通讯作者:
Constable, Steven
影响因子:
1.4
作者:
Li, Yuguo;Li, Gang
通讯作者:
Li, Gang
影响因子:
--
作者:
T. Eidesmo;S. Ellingsrud;L. MacGregor;S. Constable;M. Sinha;S. Johansen;F. Kong;H. Westerdahl
通讯作者:
T. Eidesmo;S. Ellingsrud;L. MacGregor;S. Constable;M. Sinha;S. Johansen;F. Kong;H. Westerdahl