Petrophysical Analysis Of Miano 07 Central Indus Basin, Pakistan

Abstract

In order to execute the task of hydrocarbon exploration, the petrophysical analysis is carried out on the Miano 07 well, located in the Central Indus Basin Pakistan. The area is marked by extensional tectonic regimes. The location is demarcated by Pano Aqil graben surrounded by Kandhkot Mari and Jacoabad Khairpur horsts present in the north. The Drilling has been done from the Kirthar Formation of the Eocene age up to the Lower Goru Formation of the Cretaceous age which here is acting as a reservoir. Intra-formational shale of Goru Formation acts as a seal and Sembar Formation as source rock. The logging suite is composed of a caliper log, spontaneous potential log, density log, dual lateral log, gamma ray log, sonic log, and microspherically focused logs that have been run starting from the depth of 3110 m to 3434 m in the Miano 07 encountering the Lower Goru Formation. Two prospect zones of interest have been marked in Lower Goru formation from 3322 m to 3329 m and 3350 m to 3359 m respectively, on the basis of certain petrophysical parameters i.e. low GR-log values, high LLD values and neutron-density crossover. These zones show good porosity and hydrocarbon saturation along with an acceptable volume of shale. As per the present research work, the B-sand of the Lower Goru formation has been concluded as a reservoir.