Estimation of water and hydrocarbon saturation based on wireline logs in carbonate rocks of the Sargelu formation (Middle Jurassic)‎ from the Kurdistan region, Iraq

Other Title(s)

تقدير مستوى الاشباع بالمياه و المواد الهيدروكربونية بواسطة الجس البئري للصخور الكربونيتية لتكوين ساركلو (الجوراسي الأوسط)‎ في إقليم كردستان، العراق

Author

Aswad, Mahdi Khayri

Source

Iraqi Bulletin of Geology and Mining

Issue

Vol. 16, Issue 2 (31 Dec. 2020), pp.95-108, 14 p.

Publisher

Ministry of Industry and Minerals Iraqi Geological Survey

Publication Date

2020-12-31

Country of Publication

Iraq

No. of Pages

14

Main Subjects

Earth Sciences, Water and Environment

Topics

Abstract EN

The Zagros Fold and Thrust Belt in Iraq contain host prolific hydrocarbons and recently, significant oil reservoirs have been discovered in the Jurassic carbonate rocks.

The current work focuses on Water and Hydrocarbon Saturation in the carbonate rocks of the Sargelu Formation (Middle Jurassic) based on a set of conventional Wireline logs which are: Gamma-ray, Neutron porosity, Bulk Density, three sonic types, all Resistivity, photoelectric, uranium, thorium, and potassium.

The Wireline log shows that the Sargelu Formation can be divided into five units based on lithology.

These units were derived from different cross plots.

The computation of petrophysical properties of this carbonate reservoir is complex due to several washouts and heterogeneities, caused by the exposure of shale which is strongly influencing the reservoir saturation.

The Wireline log shows that the average Water saturation in the carbonates of the Sargelu Formation is 20%, with an irreducible Water saturation of 0.2% and an average Hydrocarbon saturation of 30%.

Whereas, the water resistivity is 0.03 ohm.m and the Mud filtration resistivity is 0.17 ohm.m.

American Psychological Association (APA)

Aswad, Mahdi Khayri. 2020. Estimation of water and hydrocarbon saturation based on wireline logs in carbonate rocks of the Sargelu formation (Middle Jurassic) from the Kurdistan region, Iraq. Iraqi Bulletin of Geology and Mining،Vol. 16, no. 2, pp.95-108.
https://search.emarefa.net/detail/BIM-1024093

Modern Language Association (MLA)

Aswad, Mahdi Khayri. Estimation of water and hydrocarbon saturation based on wireline logs in carbonate rocks of the Sargelu formation (Middle Jurassic) from the Kurdistan region, Iraq. Iraqi Bulletin of Geology and Mining Vol. 16, no. 2 (2020), pp.95-108.
https://search.emarefa.net/detail/BIM-1024093

American Medical Association (AMA)

Aswad, Mahdi Khayri. Estimation of water and hydrocarbon saturation based on wireline logs in carbonate rocks of the Sargelu formation (Middle Jurassic) from the Kurdistan region, Iraq. Iraqi Bulletin of Geology and Mining. 2020. Vol. 16, no. 2, pp.95-108.
https://search.emarefa.net/detail/BIM-1024093

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 107-108

Record ID

BIM-1024093