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Next: Geologic setting Up: Jousselin and Biondi: Anisotropic Previous: Caveats in the computation

Anisotropic migration velocity analysis on real data from RMO transformation in anisotropic ADCIGs

In this section, we perform anisotropic migration velocity analysis on real data and demonstrate the validity of our estimation method, by showing it indicates the presence of anellipticity in layers stratigraphically interpreted as anisotropic and for which well data do not match seismic data migrated under the assumption of isotropy. We first present the geologic setting and imaging challenges of the Alwyn field, where the data set was acquired. We then compute anisotropic velocity spectra.