Petrophysics based Reservoir Evaluation of the Cretaceous Lower Goru “C” Sands, Middle Indus Basin, Sindh, Pakistan

This study demonstrates the reservoir investigation of Cretaceous Lower Goru “C” sand interval using exploratory well data from middle Indus basin Sindh. The petrophysical parameters including volume shale, effective porosity, and water saturation investigated were calculated. shale calculation results in 30–35% non-clean (shale) lithology, which is high as compared to Sawan-01 Sawan-08 wells. porosity ranges 12–16%, while average value complete falls range 50–60%. However, certain zones with relatively lower values around 30-50% are also observed. These considered better pay comparison other intervals. A “gas effect” phenomenon observed on cross plots represents area neutron-density cross-over indicating presence lighter hydrocarbons this zone interval.