Application of model based post-stack inversion in the characterization of reservoir sands containing porous, tight and mixed facies: A case study from the Central Indus Basin, Pakistan

Porosity is a key parameter for reservoir evaluation. Inferring the porosity from seismic data often challenging and prone to uncertainties due number of factors. The main aim this paper show applicability inversion on old vintage map spatial at level. 3D-seismic wireline log are used properties Lower Goru productive sands in Gambat Latif block, Central Indus Basin, Pakistan. formation was interpreted with help well data. Interpreted horizons thus further model-based techniques distribution porosity. Well-log construction low acoustic impedance models. Calibration inverted achieved through well-log results reasonably estimate within C-sand interval Member. After post-stack inversion, values wells Tajjal-01, Tajjal-02 Tajjal-03 10%, 8% 12%, respectively. calculated corresponding locations good agreement borehole-derived