2D SEISMIC DATA INTERPRETATION AND PETROPHYSICAL ANALYSIS OF BITRISM AREA, LOWER INDUS BASIN, KHAIRPUR DISTRICT SINDH, PAKISTAN

Abstract

Bitrisim area is an common example of extensional tectonics represented by Horst & Graben structures. In order to carry out the structural and stratigraphic interpretation of the Bitrisim area, two seismic dip line sand one strike linear interpreted. Two way time and depth mapping help in delineated the structural trend and understanding the tectonics of the area. Subsurface mapping reveals that major fault trend is NW-SE .There are the reactivation of faults indicating the occurrence of various tectonic periods. Existing structural trend of the area provides basic components of a profile petroleum system. One D modeling is done for the one well Fateh-01 and zone of interest is the lower Goru. Porosity calculations are made to find out the water saturation and also the hydrocarbon saturation is calculated. The fault seal analysis is done to analyze the fault that is sealing or not. The main constituents of petroleum system are present proven by a number oil and gas discoveries but there is still a requirement of advance techniques to improve seismic resolution and quality of interpretation.