Petrophysical Analysis Of Qadirpur Well No 17

Abstract

Qadirpur Gas Field is one of the major gas reserves of Pakistan. Qadirpur Well #17 was drilled in the Qadirpur Concession field, operated by OGDCL, as a development well in order to utilize the hydrocarbon potential of Sui Main Limestone (SML). In this study, an effort has been made to analyze the petrophysical properties of SML of the Qadirpur Well #17 for the depth interval of 1290m to 1390m. The review of stratigraphy and borehole analyses has also been a major objective of the study. The volume of shale has been calculated through the GR log and presented in the histogram. The lithology of the zone has been identified through the Density and Neutron Log by marking different values of density and Neutron Log on a Density and Neutron cross-plot chart. It is concluded that the reservoir lithology of Qadirpur Well # 17 is Sui Main Limestone. Porosity of formation is calculated from three methods and their average values range between 5 to 25%. The resistivity of water has been computed through the Archie Equation Method i.e. 0.15 ohms. Saturation of Hydrocarbon is calculated and resultant values show that from 1332m to 1341m and from 1355m to 1362m the hydrocarbon saturation is more than 70%. Therefore, both of these zones can be concluded as the hydrocarbon-bearing zone.