Petrophysical Interpretation And Geomechanical Earth Modeling Of Manzalai-01 And Manzalai-05 Upper Indus Basin, Pakistan

Abstract

This work focuses on Petrophysical analysis of Manzalai-01 and Manzalai-05 wells for reservoir characterization of Lockhart and Lumshiwal Formations in Manzalai Field, Kohat basin, Pakistan. In Potwar Sub Basin, Paleogene Carbonates and Jurassic clastic are the main, proven reservoirs and Ratana Field is no exception, where these reservoirs are present within the reachable depth. The whole set of Petrophysics tools such as, Gamma Ray, CALI log, Spontaneous Potential, Resistivity (MSFL, LLS, LLD), Neutron log, and Density logs, along well tops and all the drilling elements were calculated in this work. The main aim of the work was to point out areas of interest which may act as a reservoir, for this purpose properties such as volume of shale, porosities, saturation of water and hydrocarbon saturation were measured that come under Petrophysical interpretation and Pore pressure, Fracture pressure and Overburden that comes under Geomechanically interpretation that marks the zone of interest in Lockhart and Lumshiwal Formation. The normal measured elements of Lumshiwal, the measurements of reservoir properties of Manzalai-01 well represent porosity of 0.038% and average Sw was evaluated as 0.554% and Saturation of H/C is 63.57%. For Lockhart the average porosities are 0.42% and average water saturation of 0.69%. The analysis shows that Sh of Manzalai -01 and Manzalai-05 wells is proven for the production of hydrocarbons to be economically feasible and is already producing.