Reservoir Characterization of Lower Goru Formation Using 3D Seismic and Well Logs Data of Mubarak Area, Lower Indus Basin, Pakistan

Abstract

This research focuses on reservoir characterization of sand bodies of Lower Goru Formation in the Mubarak Gas Field, Lower Indus Basin, Pakistan. Mubarak Gas Field is located in Indus Platform, where Mesozoic extensional structures are concealed beneath Paleogene sequences. These extensional normal faults host largest hydrocarbon reserves of Pakistan. Source rock potential exist in Lower Cretaceous Sembar and Goru Formation, whereas Jurassic Chiltan limestone and Cretaceous Goru Formations are potential reservoir rock, sealed by shales of Upper Goru Formation. The study integrates seismic data and well logs to enhance understanding of the subsurface reservoir properties. Seismic interpretation indicate normal fault in subsurface, which host hydrocarbon reserves of Mubarak Gas Field. Other studies suggest that these faults are produced during rifting of Indian Plate during Mesozoic. Well log data suggest reservoir potential in Lower Goru B-sands and C-sands. The study will contribute to understanding of reservoir quality and future exploration strategies in the sand bodies of Goru Formation.