Formation Evaluation by using Petrophysical Analysis and Stratigraphic Correlation of Missa Kaswal Wells 01, 02 And 03, Upper Indus Basin, Pakistan (T-1409) (MFN 5000)

Abstract

The research work is carried out in the area of Missa Kaswal, which is located in Punjab province, Upper Indus Basin, Pakistan. The research work has done on the 03 wells of Miss Kaswal in order to find out the hydrocarbon potential through Petrophysical analysis. The study area is important for hydrocarbon traps, and most of them are structural traps. The sedimentary sequence of the Missa Kaswal ranges from the Pre-Cambrian to Pliocene age Siwaliks group. The main reservoirs in the area are Chorgali formation and Sakesar limestone of Eocene age. Formation evaluation and Stratigraphic correlation is the main purpose of this study at the level of Cambrian and Eocene rocks. Petrophysical studies include the determination of the porosities, resistivity of water, Saturation of water, Saturation of Hydrocarbon and Net pay thickness. Gamma ray, Resistivity, Sonic log, Neutron log, Density log and Calliper logs are used. Petrophysical results show the presence of clean Limestone with variable porosity in the prospective zones.. The Petrophysical analysis was performed on three main formations which are consider to be a good reservoir in the Missa Kaswal area, in well 01 Sakesar and Khewra Formation having promising signature to produce hydrocarbon on economic value, while in well 02 Sakesar Formation may be act as a good due to low volume of shale, Khewra Formation can act as a good reservoir in upper portion, and in well 03 also Khewra Formation have chances to produce hydrocarbons on economic value. In well 01 Sakesar in Formation hydrocarbon saturation is 49.78, effective porosity 8.7% and net pay thickness is 2.5m, While in Khewra Formation hydrocarbon saturation is 76.02%, and Netpay thickness is 3m, in well 02 Sakesar Formation in zone “A” and zone “B” water saturation are 49.11, 95.30, average and effective porosities are 2.1 and 0.5 respectively, and in Khewra Formation hydrocarbon saturation is 29..8%, average porosity is 7.1 and Netpay thickness is 0.5m. In well 03 Chorgali and Sakesar Formation have water saturation 80 and 86%, average porosities are 7 and 3% and Netpay thickness is 0m, and in Khewra Formation hydrocarbon saturation is 55.7%,average and effective porosities are 11.9and 7.1%respectively and Netpay thickness is 9m . Stratigraphic correlation shows that the depth of the formations increases from well 01 to well 03 towards the eastern side of the basin, which means area is present towards limb of the anticline.