Elastic Full-Waveform Inversion with Geologic Information for Tilted TI Media

S. Singh, I. Tsvankin, E. Zabihi Naeini

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High-resolution velocity models generated by full-waveform inversion (FWI) can be effectively used in seismic reservoir characterization. However, FWI in elastic anisotropic media is hampered by the nonlinearity of inversion and parameter trade-offs. Here, we propose a robust way to constrain the inversion workflow using per-facies rock-physics relationships derived from borehole information (well logs). The advantages of the facies-based FWI are demonstrated on a 2D elastic TTI (transversely isotropic with a tilted symmetry axis) model with substantial structural complexity. In particular, the tests show that our algorithm improves the spatial resolution of the inverted medium parameters without using ultra-low-frequency data required by conventional FWI.
Original languageEnglish (US)
Title of host publication82nd EAGE Annual Conference & Exhibition
PublisherEuropean Association of Geoscientists & Engineers
DOIs
StatePublished - 2020
Externally publishedYes

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