Abstract:
The document discusses the geology and tectonics of study area that lies in Missa
Keswal oil field which is a thrust bounded anticlinal structure. Geographically, the area lies
in Gujjar Khan tehsil, Rawalpindi district, Punjab, Pakistan. Tectonically, the area lies in
eastern Potwar division of Upper Indus Basin Pakistan. The research focuses on the 2D
seismic interpretation of the study area to investigate for the petroleum system and the
structures capable of hydrocarbon accumulation with the help of available seismic lines.
The subsurface image of the area confirms the presence of anticlinal geometry and pop-up
structures. The results are further elaborated in terms of time and depth maps of the study
area. The document also discusses the petrophysical analysis of the study area on the basis
of well log data available for Qazian-01X well drilled in that field. The main focus of
petrophysical analysis is the evaluation of the primary reservoirs in the study area namely
Chorgali Formation and Sakesar Limestone of late Eocene age in terms of three main
reservoir characteristics namely characteristics i.e. porosity, saturation of hydrocarbons
and shale content of the reservoirs in the study area. The whole interpretation is expressed
in terms of graphs that depict good effective porosity conditions with less shale content in
both formations but saturation of hydrocarbon is more in Chorgali Formation as compared
to Sakesar so it is having more potential to be a good hydrocarbon reservoir.
