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Rock Physics Constrained Anisotropic Tomography - Methodology and Applications to the Gulf of MexicoNormal access

Authors: H.K. Helgesen, R. Bachrach, Y. Yang, Y. Liu, N. Seymour, M. Woodward, K. Osypov and S. Leaney
Event name: 75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013
Session: Imaging Case Studies II
Publication date: 10 June 2013
DOI: 10.3997/2214-4609.20130073
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 2.44Mb )
Price: € 20

We present a new method for anisotropic velocity model building for seismic imaging. In the paper we describe the method and a case study that uses stochastic rock physics modeling of the non-linear relationships between the anisotropic parameters (epsilon, delta and vertical velocity) to estimate non-stationary covariance functions that are used as a priori information in the tomographic equations. This method allows us to constrain the tomographic updates with rock physics and thus stabilizes tomography. We present the method and a Gulf of Mexico (GoM) case study for anisotropic model building.

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