2D seismic interpretation and petrophysical analysis of Missa Keswal area, upper Indus basin, Pakistan (P-1086) (MFN 3999)

Abstract

The main purpose of this dissertation is to evaluate the structureand hydrocarbon potential using seismic and well log data of Missa Keswal area lying above soan syncline in North Potwar Deformed Zone, Upper Indus Basin, Pakistan.The major tectonic structures in the Eastern Potwar include anticlinal pop-up structures, synclines and overthrusted fault blocks. The overall stratigraphy in the Potwar sub-basin ranges between Pre-Cambrian to Pliestocene.The targeted Formations are of Eocene age. For structural enhancement, five migrated seismic lines, 994-GNA-09, 994-GNA-10, 994- GNA-14, 994-GNA-16 (dip lines) and 994-GNA-11 (Strike line) have been used. Time and depth contour maps of two Eocene horizons, Chorgali Formation and Sakesar Formation are generated which confirm the anticlinal pop-up structure in the sub-surface. For petrophysical analysis one zone has been marked at the level of Chorgali formation which infers that effective porosity is 9% , Vsh is 22% and Sw is <45%.The full log data of Chorgali and Sakesar Formation was not provided, if provided then good interpretation and accurate reserve estimation could be done.