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Lorenzo Perozzi added The_inversion_results_shows_a__.tex
about 9 years ago
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The inversion results shows a SSIM index of about 0.6 for $V_p$, $V_s$ and $\rho$. Compared to the random SGS realizations set, the inversion results are significantly improved in term of similarity with the reference models. The $\phi$ field shows a SSIM index close to 1 for both SGS realization and inversion results. This means that both are very similar to the reference porosity field. This is quite normal as the $\phi$ distribution shows a low variance for each layers (see table \ref{tab:well-log}). If we focus at the reservoir level (1050m to 1300m) we observe a substantial improvement on the similarity for the inversion results (SSIM=0.89) over the SGS realization result (SSIM=0.82) as shown in figure \ref{fig:SSIM_res}. In effect, as we perform the CO$_2$ flow simulation within this unit, we increase the number of parameters to optimize (i.e., the optimization is done for both static and dynamic data), resulting in an increased similarity with the respectively reservoir level of the reference model.
