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Abstract

Summary

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.

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/content/papers/10.3997/2214-4609.202010224
2021-10-18
2024-04-25

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.202010224
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Elastic Full-Waveform Inversion with Geologic Information for Tilted TI Media
Conference Proceedings 2021, 1 (2021); https://doi.org/10.3997/2214-4609.202010224
/content/papers/10.3997/2214-4609.202010224
/content/papers/10.3997/2214-4609.202010224
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