INTEGRATED SEISMIC INTERPETATION, WELL LOGGING ALONG WITH SEISMIC ATTRIBUTE ANALYSIS OF BADIN BLOCK-4, PAKISTAN

Abstract

The present study pertains to the structural and stratigraphy interpretation using SEG –Y data and well logs data. Badin 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. The marked horizons were identified using formation tops from wells and their depths were confirmed through correlation with synthetic seismogram. From time and depth contour maps of the horizons that are marked were generated to understand the spatial geometry of the structures and the nature of geological structures as identified by the seismic section of the area. Normal faulting as identified on seismic sections confirmed that study area lies in extensional tectonic regime. The resulted 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 hydrocarbon. Petrophysical results by using statistical analysis and facies modelling indicates the dryness of well Doti-01.Coloured inversion shows low acoustic impedence at reservoir level.