SUBSURFACE STUDIES OF KHIPRO AREA USING 2D SEISMIC AND WELL DATA

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 (oil and gas) structural traps. For interpretation of these seismic lines two reflectors and normal faults were marked by using the interactive tools of Kingdom software, polygon construction, two way time contour and depth contour are also the part of the seismic data interpretation. Normal faulting as identified on seismic sections confirmed that study area lies in extensional tectonic regime. The seismic interpretation of these lines confirmed Horst and Grabben structures by normal faulting. Horsts or the elevated portions in the structure are suitable place for the accumulation of hydrocarbons. Seismic attributes analysis of seismic section helps in identifying the different lithological boundaries and also confirmed the structural disturbance. By using well data estimation of rock physics and petrophysical analysis are also possible for identification of accumulation of hydrocarbon. Gasman’s theory of fluid substitution is also applied on naimat basal well well to get the response of logs in the presence of different fluids.