2D seismic data interpretation and petrophysical analysis of Zamzama area lower Indus basin, Pakistan (P-1095) (MFN 3924)

Abstract

A seismic final stack section comprising of HPK98A-30, HPK98A-31, HPK98A-32, HPK98A-33, HPK98A-34and HPK98A-36 of ZAMZAMA Block of Dadu Area was provided for this research by the Department of Earth and Environmental Sciences, Bahria University Islamabad through Directorate General of Petroleum Concessions (DGPC). The lines provided are dip and strike lines respectively which trend East-West and North-South. The root mean square and Dix interval velocities at different times were given. Five prominent reflectors were marked on the seismic sections on the basis of observed reflection events. The marked horizons show deformation in the area caused by compression. Based on the reflectors trend, a thrust fault is marked within the dip lines. A time section is produced from the seismic section using the CDP points and the twoway- times (TWT) of the reflectors and fault. These average velocities are then used to find the depths of the formations for the Depth Section. In this research study the Well data of ZAMZAMA 03 was obtained from DGPC located in Lower Indus Basin. Sonic Log, Neutron Porosity Log, Density Log, Gamma ray Log, SP Log and PEF were analyzed for petrophysical analysis. The logs were used to determine lithology, volume of shale, petrophysical and seismic parameters for reservoir estimation.