2D-SEISMIC REFLECTION DATA INTERPRETATION, PETROPHYSICAL ANALYSIS AND SEISMIC ATTRIBUTE ANALYSIS OF KHIPRO AREA, LOWER INDUS BASIN, PAKISTAN

Abstract

The present study pertains to the structural and stratigraphy interpretation, attributes analysis, petrophysical analysis and estimation of rock physics of Khipro area. The data used for this study consists of SEG –Y data, navigation data and well logs data. Khipro area is prominent in the Lower Indus Basin for its hydrocarbon structural traps. This thesis work includes preparation of synthetic seismogram of Naimat Basal-01 well, which was then later used for seismic to well tie for the seismic lines in order to mark the horizon of interest, along with demarcating faults associated in the study area. Since the study area lies in the extensional regime as confirmed by the geology of the study area from literature, we encounter horst and graben structures, and normal faulting. Time and depth contours maps of the three horizons are generated which delineates the horst and graben structures that confirms normal faulting in the study area. Naimat basal-01 well is drilled on the horst area in Khipro area. Seismic attributes analysis of seismic section helps in identifying the different lithological boundaries and confirmed the structural disturbance. By using well data estimation of petrophysical analysis are also possible for identification of accumulation of hydrocarbons. Low volume of shale, high effective porosity, low water saturation and high hydrocarbon saturation in zone of interest are the indicator for hydrocarbon presence and the porous reservoir formation, which is suitable for hydrocarbon accumulation, also for quantitative interpretation averages of the different petrophysical logs are calculated.