Structural interpretation by using 2D seismic and petrophysical analysis of Missa Keswal well-01, upper Indus basin, Pakistan (P-0897) (MFN 3907)

Abstract

Missa Keswal Oil Field is located at a distance of about 60 Km in the south-east of Islamabad in the eastern part of Potwar basin. The Coordinates of selected well -01 is 33° 12' 0" North, 73° 22' 0" East respectively. The used data obtained for both petrophysical and seismic processes included the seismic lines 905-QZN-4,994-GNA-12,994-GNA-09,994-GNA-19,and well log data of Missa Keswal-01 from Landmark Resources(LMKR) with the approval of Directorate General of Petroleum Concession (DGPC) to complete our study work of selected area. In the present study our strike line is oriented in SW-NE and three dip lines are oriented in SE-NW. Chorgali Formation and Khewra Sandstone are marked as reflector 1&2 respectively to investigate the geological structure in the area. Some major faults were identified, along these reflectors. Depth, velocity and time contour maps were generated which shows the pop-up structure in the subsurface and is acting as trap for hydrocarbons. Petrophysical analyses was carried out to identify the reservoir and to evaluate the volume of shale which was 37%, effective porosity =13%, average porosity =20.01%, saturation of water =45% and saturation of hydrocarbon was 55%.The petrophysical analyses confirm the presence of strong hydrocarbon zone in the Chorgali formation.