Abstract:
The objectives of the study are to reconstruct sequence stratigraphic
framework and petrophysical analysis of the reservoir marked by using sequence
stratigraphy of Sawan gas Field. The study area lies in Central Indus Basin, District
Khairpur, Sindh province, Pakistan. The study area lies tectonically in extensional
regime. Lower Goru Formation and Sembar Formation act as a reservoir and source
respectively. To achieve objectives, well logs of Sawan-01, Sawan-07 has been used.
First of all petrophysical interpretation is carried out. The petrophysical interpretation
includes Shale volume, effective porosity, permeability, saturation of water and
hydrocarbon. Sequence stratigraphic reconstruction has been done by integrating
wireline log data. Total of two sequence boundaries and one sequence have been
interpreted between Lower Goru Formation. A Low Stand Systems tract (LST) within
Lower Goru C sands has been marked as a zone of interest. On the basis of good
effective porosity and hydrocarbon saturation petrophysical analysis confirms that the
LST in Sawan-01 and Sawan-07 has good hydrocarbon potential.
