2D SEISMIC INTERPRETATION AND PETROPHYSICAL ANALYSIS OF GORWAR-01 WELL, KADANWARI AREA, LOWER INDUS BASIN, PAKISTAN

Abstract

The purposes of this dissertation are to the study and interpret 2D seismic reflection data of selected seismic lines from Tajjal Area, Kadanwari Block, Lower Indus Basin, Pakistan. Our main objective was to evaluate leads and prospects in the Kadanwari Gas Field, Sindh Pakistan. This has been done by subsurface mapping using seismic data and its incorporation with the well data. Four seismic lines namely TJ 89 – 520 (dip line), TJ 89 – 524 (dip line), TJ 90 – 608 (Dip line), TJ 91 – 803 (strike line) along with Gorwar-01 well were utilized for this purpose. Methodology adopted to achieve this task includes; structural interpretation on all the seismic lines with the help of well data. Time and Depth contour mapping, Identification of potential leads at Sui Main Limestone and Lower Goru. In this study, two stratigraphic horizons have been marked named Top Sui Main Limestone, Top Lower Goru Formation. Top two reflectors shows gentle dipping to the eastern side while others are relatively flat and disturbed by structural event. The petrophysical analysis was also done to fine out the zone which can have potential to act as reservoir. Study area lies in extensional regime where horst and graben structures are associated; which create negative flower structures in the area.