Abstract

The acoustic impedance estimation is very significant for characterizing the reservoir. This work aims to use and compare the results of two generic seismic post-stack inversion methods for characterizing the reservoir. These methods are Band-limited inversion (BLI) and Colored inversion (CI). By combining well log and band-limited seismic data, the acoustic impedance (AI) inversion is obtained, which shows high-resolution subsurface information. Band-limited inversion (BLI) and Colored inversion (CI) methods are applied to the post-stack data of F3 block, Netherlands. The data are inverted into P-impedance volume in each case. The results of the investigation show that both the inversion techniques have mutually compatible impedance volumes with an average correlation coefficient of 0.97 and 0.74 respectively, for BLI and CI. Both methods of inversion show low impedances ranging from 2500- 6500m/s*g/cc between 1100ms and 1800ms time. The difference of impedance obtained from both the methods is estimated to -757 to 741 m/s*g/cc. Compared to Colored inversion, Bandlimited Inversion provides excellent results.