Petrophysical evaluation of Asmari formation in Galenar oilfield located in Dezful Embayment
Subject Areas :Akram Eivazinejad 1 , Mahdi Zare 2
1 - کارشناس ارشد زمین شناسی نفت دانشگاه آزاد اسلامی واحد تهران شمال
2 - دانشیار پژهشکده بین المللی زلزله شناسی و مهندسی زلزله
Keywords: Asmari Formation, Galenar oilfield, Petrophysical evaluation, Reservoir zones,
Abstract :
Galenar oilfield is located in 40 kilometers to the north of Andimeshk and have two Reservoir with names of Asmariformation and Bangestan group.Asmari formation with composition of Limestone, Sandstone, Sandy limestone withshale layers is one of the important hydrocarbon reservoir in Dezful Embayment therefore in this paper petrophysicalevaluation in Asmari formation is studied with use of Geolog software that including of lithology, shale volume, porosityand water saturation. Accordingly the appropriate zones with good economical exploration are identified. Based oneva1uation Asmari formation has three reservoir zones. The mean porosity in A1 zone is 2%,the mean water saturation is55% and the mean shale volume is 7.5%.the mean porosity in A2 zone is 12%,the mean water saturation is 45% and themean shale volume is 37.5%,the mean porosity in A3 zone is 5%,the mean water saturation is 40% and the shale volumeis 35%.with comparison of other oilfields in Dezful Embayment, porosity and water saturation of A1 and A2 zones aresimilar to BH-51 in Bibihakimeh oilfield. Therefore, the extraction of Bibihakimeh oilfield is economical than Galenaroilfield. Galenar oilfield is the less porosity than the result of core analysis in Ahwaz oilfield. Therefore, Galenar oilfield isthe less economical than Ahwaz oilfield.
