D025 Geostatistical Stochastic Elastic Iinversion - An Efficient Method for Integrating Seismic and Well Data Constraints P.R. Williamson (Total E&P USA Inc.) A.J. Cherrett* (Total SA) & R. Bornard (CGGVeritas) SUMMARY We present a new stochastic algorithm for the inversion of multi-angle seismic reflection data and well logs. The probability distribution of P- and S-impedances in the subsurface is characterised by a set of representative and mutually-independent samples or realisations. Each of these realisations not only fits the observed data to within defined tolerances but also satisfies lateral and vertical spatial correlations from geostatistics. Thanks to a judicious choice of


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