Petrophysical analysis of Bobi Well-01, lower Indus basin Pakistan (P-0866) (MFN 2854)

Abstract

The main purpose of the study is to evaluate hydrocarbon potential of a well named Bobi Well # 01, Lower Indus Basin, Pakistan. This has been achieved by using complete suite of wire line logs and available well data. This complete set of data is issued by Land Mark Resources, Pakistan with the prior permission of Directorate General of Petroleum Concessions, Pakistan. To complete the above mentioned task, all logs were correlated to mark the horizon of interest i.e. reservoir zone. In my case the reservoir lies in Goru Formation of Cretaceous age. After the demarcation of reservoir zone of about 122 meter, this zone was then divided into three sub zones according to the quick look interpretation for the Gamma ray and Resistivity Log. Then these zones were evaluated for the hydrocarbon potential in detail using set of equations and different formation evaluation charts made by Schlumberger. The methodology adopted to accomplish this task include; the measurements for the Shale volume by using Gamma Ray Log, Porosities of the Reservoir zone by Density and Neutron Log, Resistivity of water by using Spontaneous potential log , Saturation of water in the zone of reservoir and Hydrocarbon saturation using Archie equation. The results for the dissertation were then displayed in the form of excel sheets and graphs for the better approach towards the task. These all displayed results show a good reservoir quality in all the three sub zones.