| Autor: |
E. Zabihi Naeini, Ilya Tsvankin, Sagar Singh |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
82nd EAGE Annual Conference & Exhibition. |
| DOI: |
10.3997/2214-4609.202010224 |
| Popis: |
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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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