Estimation of facies probabilities on the Snorre field using geostatistical AVA inversion
نویسندگان
چکیده
We have done a geostatistical inversion of seismic data to facies probabilities. As a first step, we invert the seismic data for elastic parameters using the Bayesian AVA inversion method of Buland et. al. (2003). Next, we use an analysis of the uncertainty in the posterior distribution to filter the elastic parameters given in well logs. By comparing these filtered well logs with facies logs, we establish a relationship between facies and seismic data. This relationship is combined with the elastic parameters from the inversion to estimate facies probabilities for the entire volume.
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