Hydraulic flow unit and facies analysis integrated study for reservoir characterisation: a case study of Middle Jurassic rocks at Khashm El-Galala, Gulf of Suez, Egypt

  • Mohamed A. Kassab
  • Mostafa A. Teama
Original Paper


The geological attributes, the nature of permeability barriers, and petrophysical properties are substantial for defining the different hydraulic units which do not necessarily coincide with the geological facies boundaries. The integrated study between facies analysis and classic discrimination of hydraulic flow units is very important to categorise rock quality and heterogeneity as a reservoir. The lithofacies and petrographic microfacies analyses are carried out based on subjective geological observations, whereas the graphical and statistical hydraulic flow unit discriminations are carried out based on permeability-porosity empirical relationships. The reservoir quality heterogeneity is in charge of characterising the hazard in delineating a new discovery in the field. In this study, the authors defined and described five facies (F1, F2, F3, F4 and F5) in light of the geological attributes of the Jurassic rocks at Khashm El-Galala. Facies F5, which is coarse to medium-grained quartz arenite sandstone, represents the best reservoir quality. Three hydraulic flow units (HFU1 through HFU3) were described precisely in the studied rocks with flow zone indicator (FZI) values referring to a wide range of hydraulic characteristics. Quartz constitutes the dominant framework mineral in the sandstone samples. Compaction and cementation are the most effective porosity-reducing diagenetic processes that change the reservoir rock quality.


Facies analysis Hydraulic flow unit Khashm El-Galala Gulf of Suez Egypt 



Mostafa Teama would like to thank the Egyptian Petroleum Research Institute (EPRI) CoreLab, Ministry of Scientific Research, Egypt, for access to lab facilities for conducting part of this work. The authors would like to thank those who offered help during sample preparation, measurements and data interpretation.


  1. Abd El-Shafy E (1980) Lithostratigraphy and biostratigraphy of Jurassic rocks at Gulf of Suez, Egypt, PhD. Thesis, Geology Dept., Fac. Sci., Zagazig Univ., EgyptGoogle Scholar
  2. Abdallah AM (1961) New findings of interest on the geology of the western side of the Gulf of Suez, J. Geology. UAR 5(1):55–68Google Scholar
  3. Abdallah AM (1964) New Bathonian (Middle Jurassic) Occurrence at the western side of the Gulf of Suez, Egypt, Geol. Surv. and Min. Res. Depart, CairoGoogle Scholar
  4. Abdallah AM, Fahmy N (1969) A new Pelecypod subgenus and species from Middle Jurassic of Khashm El-Galala, Gulf of Suez. Egypt J Geol UAR, Cairo, Egypt 13(2):145–151Google Scholar
  5. Abdallah AM, Wahab SA, Aboul Ela N, El-Azhary T (1979) Sedimentary structures in the Permo-Carboniferous Aheimer and Abu- Darag formations, west Gulf of Suez, Egypt, Annual of Geol. Surv Egypt IV:432–445Google Scholar
  6. Abuseda H, Kassab MA, Lala AM, El Sayed NA (2015) Integrated petrographical and petrophysical studies of some Eocene carbonate rocks, Southwest Sinai, Egypt, Egyptian Journal of Petroleum, Elsevier 24: 213–230Google Scholar
  7. Amaefule JO, Altunbay M, Tiab D, Kersey DG, Keelan DK (1993) Enhanced reservoir description: Using core and log data to identify hydraulic flow units and predict permeability in uncored intervals/wells. Society of Petroleum Engineers, paper 26436, 88th Annual Technical Conference and Exhibition, 205–220Google Scholar
  8. Amyx JW, Bass DM, Whiting RL (1960) Petroleum Reservoir Engineering. McGraw Hill Publ. Co., New York, NYGoogle Scholar
  9. Djebbar T, Donaldson EC (2004) Theory and Practice of Measuring Reservoir Rock and Fluid Transport Properties, seconded. Burlington, USAGoogle Scholar
  10. Farag IAM (1941) The Jurassic Formations in Egypt, PhD. Thesis, Cairo Univ., GizaGoogle Scholar
  11. Füchtbaur H, Müller G (1970) Sedimente und sedimentgesteine, schweizer bratsch verlag. StuttgartGoogle Scholar
  12. Hassanein MI (1984) Geological studies of the Jurassic rocks in northern Galala, gulf of Suez, Egypt, M. Sc. Thesis, Fac. Sci., Cairo Univ., EgyptGoogle Scholar
  13. Irland HA (1971) Insoluble residues, In Craver, R.E. (edit.) procedures in sedimentary petrology John Wiley Intersciences, New York, pp 479–498Google Scholar
  14. Kassab MA, Teama MA, Cheadle BA, El-Din ES, Mohamed IF, Mesbah MA (2015) Reservoir characterization of the Lower Abu Madi formation using core analysis data: El-Wastani gas field, Egypt. J Afric Earth Sci, Elsevier 110:116–130CrossRefGoogle Scholar
  15. Kassab MA, Abdou AA, El Gendy NH, Shehata MG, Abuhagaza AA (2017) Reservoir characteristics of some cretaceous sandstones, North Western Desert, Egypt. Egypt J Pet 26:391–403CrossRefGoogle Scholar
  16. McQueen and Martin (1931) Insoluble residues as a guide in stratigraphic studies, Missouri. Geol- Surv- 56 th Biemn Rep. State Geologist Apr. 1:103–131Google Scholar
  17. Said R (1962) The Geology of Egypt. Elsevier, Amsterdam, New YorkGoogle Scholar
  18. Said R (1990) The Geology of Egypt. Balkema, RotterdamGoogle Scholar

Copyright information

© Saudi Society for Geosciences 2018

Authors and Affiliations

  1. 1.Department of ExplorationEgyptian Petroleum Research Institute (EPRI)CairoEgypt
  2. 2.Mathematical & Science Engineering Department, Faculty of Petroleum and Mining EngineeringSuez UniversitySuezEgypt

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