Reservoir characterization of Abu Roash-A sandstone by integration of core analysis and assessment of hydraulic flow units, Beni Suef oil Field, Egypt

Mohamed Arafat, State Key Laboratory of Deep Geothermal Resources, China University of Geosciences, Wuhan, 430074, ChinaFollow
Mohamed Fagelnour, Khalda Petroleum Company, New Maadi, Cairo 11431, Egypt
Tarek F. Shazly, Exploration Department, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
Shu Jiang, State Key Laboratory of Deep Geothermal Resources, China University of Geosciences, Wuhan, 430074, China
Chunfang Cai, National Key Lab Petroleum Resource & Engineering, China University of Petroleum, Beijing 102249, China
Yongjie Hu, Sinopec International Petroleum Exploration and Production Corporation, Beijing 100029, China
Aliaa Omran, Faculty of Economics and Political Science, Cairo University, Giza, 12613, Egypt
Sherif Farouk, Exploration Department, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt

Article Type

Research Paper

Abstract

The East Beni Suef (EBS) concession in the north Western Desert, Egypt, hosts significant reserves. This study integrates core analysis, petrophysical evaluation from well logs, and statistical assessment to characterize reservoir properties and determine hydraulic flow units (HFUs). The Upper Cretaceous Abu Roash-A (A/R-A) sandstone is a considerable reservoir, with hydrocarbons sourced mainly from the Lower Kharita shale. Facies analysis identifies two types of sandstone within a transgressive sequence: Type-1, medium to coarse-grained oil-saturated facies, and Type-2, finegrained, bioturbated facies. Hydraulic flow unit (HFU) assessment divides the reservoir into high- and low-quality zones based on flow zone indicators (FZI), highlighting porosity and permeability variations. Statistical analyses reveal porosity values ranging between 20% and 24%, with Permeability predominantly below 20 mD, exhibiting anisotropic fluid flow due to vertical and horizontal Permeability differences. The Pickett Plot analysis and Archie’s equation confirm the presence of producible hydrocarbons, with an Oil-Water Contact (OWC) identified at -3450 ft. The reservoir demonstrates heterogeneity, with Permeability strongly correlated with porosity and influenced by facies distribution. The findings provide insights into the reservoir's quality and production potential, supporting enhanced hydrocarbon recovery strategies that identified Abu Roash-A (A/R-A) sandstone as a promising hydrocarbon reservoir and more suitable site for fluids sequestration.

Keywords

Reservoir Characterization; facies analysis; hydraulic flow units (HFU); Western Desert; Egypt

Recommended Citation

Arafat, Mohamed; Fagelnour, Mohamed; Shazly, Tarek F.; Jiang, Shu; Cai, Chunfang; Hu, Yongjie; Omran, Aliaa; and Farouk, Sherif (2026) "Reservoir characterization of Abu Roash-A sandstone by integration of core analysis and assessment of hydraulic flow units, Beni Suef oil Field, Egypt," Egyptian Journal of Petroleum: Vol. 35 : Iss. 2 , Article 1.
Available at: https://doi.org/10.62593/2090-2468.1103