Anisotropic parameter inversion in VTI media using diffraction data
KAUST DepartmentEarth Science and Engineering Program
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AbstractDiffracted waves contain useful information regarding the subsurface geometry and velocity. They are particularly valuable for anisotropic media as they inherently possess a wide range of dips necessary to resolve angular dependence of velocity. Using this property of diffraction data to our vantage, we develop an algorithm to invert for effective η model, assuming no prior knowledge of it. The obtained effective η model is then converted to interval η model using Dix-type inversion formula. The effectiveness of this approach is tested on the VTI Marmousi model, which yields good structural match even for a highly complex media such as the Marmousi model.
PublisherSociety of Exploration Geophysicists
Conference/Event nameSEG Technical Program Expanded Abstracts 2013