Contents of this paper were reviewed by the Technical Committee of the 16 th International Congress of the Brazilian Geophysical Society and do not necessarily represent any position of the SBGf, its officers or members. Electronic reproduction or storage of any part of this paper for commercial purposes without the written consent of the Brazilian Geophysical Society is prohibited.
We demonstrate a novel workflow for high fidelity full azimuth tilted transverse isotropy (TTI) velocity model building in an area of the Gulf of Mexico (GOM) with complex salt geometries. The workflow combines wavelet shift tomography for building a detailed overburden model, angle tomography driven by azimuth sectored reverse time migration (RTM) angle gathers for updating the sediment model in complex mini basins, underneath overhangs, and subsalt, and finally full waveform inversion (FWI) to resolve fine scale features in the overburden model. A full azimuth, long offset dual sensor acquisition provides the illumination needed in this notoriously difficult imaging area, as well the low frequencies and long offsets required for an optimal FWI solution.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.