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Anisotropic Inversion for the VTI Media Based on a Three-Term AVO EquationNormal access

Authors: T. Zhang, F. Zhang and X.Y. Li
Event name: 79th EAGE Conference and Exhibition 2017
Session: AVO - Technologies A
Publication date: 12 June 2017
DOI: 10.3997/2214-4609.201701011
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 1.2Mb )
Price: € 20

Summary:
In this paper, we present an anisotropic AVO inversion method for the VTI media based on an improved form of Rüger’s equation. The AVO intercept, gradient and anisotropic P-wave velocity are inverted simultaneously. Synthetic data test demonstrates that this method provide accurate result of anisotropic P-wave velocity and more accurate AVO gradient than the isotropic inversion. We apply this method on a real seismic data; the anisotropy parameter ε can be estimated according to the inverted anisotropic P-wave velocity.


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