Study on orthorhombic parameters for 3D elastic full waveform inversion
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Earth Science and Engineering Program
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AbstractFor a better understanding of the influence of the parameterizations on the multi-parameter full waveform inversion (FWI) for 3D elastic orthorhombic media, we analyze the virtual sources for each cij parameter. Because the virtual sources for cij parameters can be regarded as bases of the virtual sources for other parameterizations, the insights developed here explains many of the scattering phenomena of the different parameters. The resulting radiation patterns provide insights on which parameter set is the best in the multi-parameter FWI for 3D elastic orthorhombic media. In this study, we analyze the virtual source for each cij parameter as a linear combination of several moment tensors. After that, we analyze the strain fields deformed by incident waves as momenta of the virtual source and their influences on sensitivity kernels of each cij parameter.
CitationOh J-W, Alkhalifah T (2015) Study on orthorhombic parameters for 3D elastic full waveform inversion. SEG Technical Program Expanded Abstracts 2015. Available: http://dx.doi.org/10.1190/segam2015-5849903.1.
SponsorsWe thank King Abdullah University of Science and Technology (KAUST) for the financial support
PublisherSociety of Exploration Geophysicists