Abstract:
The aim of this study was to analyze the subsurface structural style, reservoir properties and shale gas/oil potential in the Jabo field located in Thar platform of Southern Indus Basin. The data used in this study comprised of migrated 2-D seismic lines in SEGY format and wireline logs of wells in LAS format. The analysis was carried by integration of geophysical and geological techniques used in hydrocarbon exploration. Firstly, seismic data was interpreted to generate subsurface map at reservoir level and then interpreting the wireline logs to delineate lithologically and porosity wise prolific quality hydrocarbon bearing zones of interest in the Lower Goru Sands. The results from both these analysis were combined to estimate the inplace hydrocarbon reserves in the reservoir. Apart from this conventional technique of hydrocarbon exploration, the potential of shale gas /shale oil was also evaluated qualitatively on the basis of wireline logs. The outcomes of the study support the already established geological model of the area which includes the presence of normal faults and confirmation of prospects on the basis of which already existing wells were drilled. Moreover, the evaluation of shale gas potential of Cretaceous shales on the basis of wireline logs also show some indication of gas potential in the Badin shale of Lower Goru Formation.
