Reservoir Characterization of Sand Intervals of Lower Goru Formation Using Petrophysical Studies; A Case Study of Zaur-03 Well, Badin Block, Pakistan | Zendy

Mustafa Yar | Zendy; Syed Waqas Haider | Zendy; Ghulam Nabi | Zendy; Muhammad Tufail | Zendy; Sajid Rahman | Zendy

Open Access

Reservoir Characterization of Sand Intervals of Lower Goru Formation Using Petrophysical Studies; A Case Study of Zaur-03 Well, Badin Block, Pakistan

Author(s) -

Mustafa Yar,

Syed Waqas Haider,

Ghulam Nabi,

Muhammad Tufail,

Sajid Rahman

Publication year - 2019

Publication title -

international journal of economic and environmental geology

Language(s) - English

Resource type - Journals

ISSN - 2223-957X

DOI - 10.46660/ijeeg.vol10.iss3.2019.320

Subject(s) - petrophysics , geology , oil shale , reservoir modeling , saturation (graph theory) , well logging , porosity , formation evaluation , mineralogy , oil in place , water saturation , petrology , geotechnical engineering , petroleum engineering , petroleum , paleontology , mathematics , combinatorics

Present study deals with petrophysical interpretation of Zaur-03 well for reservoir characterization of sandintervals of Lower Goru Formation in Badin Block, Southern Indus Basin, Pakistan. Early Cretaceous Lower GoruFormation is the distinct reservoir that is producing hydrocarbons for two decades. Complete suite of wireline logsincluding GR log, Caliper log, SP log, Resistivity logs (MSFL, LLS, LLD), Neutron log and Density log along withwell tops and complete drilling parameters were analyzed in this study. The prime objective of this study was to markzones of interest that could act as reservoir and to evaluate reservoir properties including shale volume (Vsh), porosity(ϕ), water saturation (Sw), hydrocarbon saturation (Sh) and net pay thickness. Based on Petrophysical evaluation threezones have been marked in Lower Goru Formation, A Sand (1890m to 1930m), B-sand (1935m to 2010) and C-sand(2015m to 2100m). The average calculated parameters for evaluation of reservoir properties of Zaur-03 well depicts anaverage porosity of 8.92% and effective porosity of 4.81%. Water Saturation is calculated as 28.54% and HydrocarbonsSaturation is 71.46%. Analysis shows that Sh in Zaur-03 well is high so the production of hydrocarbons iseconomically feasible.

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