Abstract
3D Geological control in an area is a key to success for exploration of hydrocarbon. Any discrepancy in geological control leads towards dry wells and ultimately high economic loss. The aim of this study is to build a 3D subsurface geologic model of Punjab platform, Pakistan by integrating mud logs, wire line logs and seismic data for interpreting the structural trends of pre-tertiary geological formations. For this purpose, wire line and mud logs of eighteen wells and about 1500LKm 2D seismic data of Punjab platform was collected from Directorate General of Petroleum Concession (DGPC) Islamabad, Pakistan. A well correlation profile is developed using Petrel and CorelDraw software to assess the distribution of subsurface geological sequences.
Synthetic seismograms were developed and then correlated with seismic stacks to pick the horizons of different formations. Time Contour, velocity contour, depth contour and isopach maps are constructed. These maps were then loaded in Structural Modeling window of Petrel software for final construction of 3D geological model. The proposed model indicates that there is a sub-surface monoclinal trend dipping towards a western side of the study area. Further, an anticline at Cambrian level near Fortabbas-Bijnot area is extending to the East in the neighbouring India. In addition, horst and graben structures are also identified at Cambrian level by seismic data. The proposed model is confirmed by results of earlier data, and it is, therefore, recommended that 3D seismic data should further be acquired to explore the structural and stratigraphic traps of Punjab platform, Pakistan.
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Aadil, N., Sohail, G.M. 3D geological modeling of Punjab platform, Middle Indus Basin Pakistan through integration of Wireline logs and seismic data. J Geol Soc India 83, 211–217 (2014). https://doi.org/10.1007/s12594-014-0033-2
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DOI: https://doi.org/10.1007/s12594-014-0033-2