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Resolving Orthorhombic Anisotropy with the Addition of P-S ConversionsNormal access

Authors: V. Kazei and T. Alkhalifah
Event name: 80th EAGE Conference and Exhibition 2018
Session: The Resolution Of Anisotropy I
Publication date: 11 June 2018
DOI: 10.3997/2214-4609.201801062
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 677.84Kb )
Price: € 20

Summary:
scattering radiation patterns from the conventional elastic coefficients, as well as what we deemed recently as the hierarchical parameterization, into the spatial wavenumber domain, to analyze the tradeoffs between and the resolution involved in illuminating the orthorhombic parameters. It turns out that P-SV waves alone can, principally, lead to the reconstruction of eight parameters -- everything except for V_p and γ₁. Together with P-waves, we can also invert for V_p, and finally with P-SH waves when can theoretically reconstruct all orthorhombic elastic parameters. We show how the information from different wavetypes combines in the inversion and that all ten parameters can be reconstructed if converted waves are used in the inversion together with P-waves.


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