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Geological and Rock Physics Constraints in Anisotropic TomographyGold Open Access

Authors: M. Woodward, Y. Yang, K. Osypov, R. Bachrach, D. Nichols, O. Zdraveva, Y. Liu and A. Fournier
Event name: 76th EAGE Conference and Exhibition - Workshops
Session: WS12 - Geology/rock Physics Control on Seismic VTI/TTI Model Building, with Particular Focus on Shale
Publication date: 16 June 2014
DOI: 10.3997/2214-4609.20140599
Organisations: EAGE
Language: English
Info: Abstract, PDF ( 1.47Mb )

Summary:
Because anisotropic models are unconstrained by surface-seismic data alone, we must learn to incorporate other non-seismic measurements and knowledge into the model building process. For this purpose, we demonstrate the regularization of anisotropic tomography with a preconditioning method which smooths updates along geological dip and constrains cross-property correlations to follow the predictions of rock-physics for compacting shales. The method is applied to the Green Canyon area in the Gulf of Mexico.

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