Improving Drainage Interpretation Using a New Bayesian Time-Lapse Inversion

C019 T-11 Improving drainage interpretation using a new Bayesian time-lapse inversion Abstract 1 An inversion technique for time-lapse seismic data has been developed to estimate changes of elastic properties (e.g. P-impedance S-impedance and density) of a reservoir due to production. The new aspects of this method is the direct and simultaneous inversion of prestack seismic difference data in addition to the Bayesian setting formalism applied to timelapse. This method provides posterior uncertainties by combining the a priori information of both the elastic properties changes and the seismic difference data. Until now this inversion has been successfully applied on real post-stack