Petrophysical Analysis, Depositional Environment and Sequence Stratigraphical pattern Identification through Wireline Log Data, Sawan Area, Central Indus Basin, Pakistan (P-0957) (MFN 5528)

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.