2D-INTEGRATED SEISMIC INTERPRETATION ALONG WITH PETROPHYSICS, ROCKPHYSICS AND FACIES MODELLING OF DHANDI AREA, CENTRAL INDUS BASIN, PAKIS

Abstract

The present study pertains to the Structural interpretation, attribute analysis, and petrophysical analysis of Dhandi Area. The data used for this study consists of SEG –Y data, navigation data and well data. The Seismic lines were acquired and processed by OGDCL. For interpretation of these seismic lines three horizon are marked by using the interactive tools of Kingdom software, 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 Density log (RHOB) and sonic log. From time and depth grids time and depth contour maps of the horizons that are marked were generated to understand the spatial geometry is identified by the seismic section of the area. The resulted seismic interpretation of these lines confirmed that Dandhi is a stable area. No major faults are there as the reflectors are continuous. Seismic attributes analysis of seismic section helps in identifying the different lithological boundaries and also confirmed the stability of study area. By using well data estimation of rock physics and petrophysical analysis are also possible for identification of accumulation of hydrocarbons. Facies analysis is performed by using well log data for identifying the variations in the lithology of reservoir rock and also for marking the possible zone of hydrocarbons accumulation