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Comparative study between density porosity and density magnetic resonance porosity: a case study of Sequoia gas reservoir, Mediterranean offshore gas, Egypt

  • S. I. SCJGE-1 2019
  • Published:
Arabian Journal of Geosciences Aims and scope Submit manuscript

Abstract

This work deals with a comparative study between density porosity and density magnetic resonance porosity in late Pliocene El Wastani gas reservoir, Sequoia field, West Delta Deep Marine (WDDM). In this study, the available well logging data by collecting, gathering, uploading, analyzing, and interpreting are used. Porosity determination, from the petrophysical parameters, routinely considered the most important process. The determined porosity by the two techniques is compared. Density resulting in density porosity (PHIT-D) showed results more than 23% in gas-bearing reservoir zones and less than 22% in non-gas reservoir zones. The porosity determined from integrating nuclear magnetic resonance (NMR) with conventional density porosity resulting in density magnetic resonance porosity (DMRP) showed results less than 33% in gas-bearing reservoir zones and more than 37% non-bearing gas zones. Comparison between the results of the two techniques in gas-bearing zones, PHIT-D is increasing and DMRP is not affected. DMRP considered the best and most true porosity against gas reservoir. This comparison is valid in any gas-bearing formations by using the proposed technique.

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Acknowledgements

A grateful thanks to EGPC by the authors for agreeing the required data and publishing. And also for many colleagues helped on oral aid and for general advice. All improved the quality of the manuscript.

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Authors and Affiliations

  1. Department of Geology, Faculty of Science, University of Menoufia, Shebeen El-Kom, Egypt

    Hassan Mohamed El Shayeb & Mohamed Mahmoud Abuelhasan

  2. Department of Geology, Faculty of Science, University of Beni-Suef, Beni-Suef, Egypt

    Gouda Ismail Abdel-Gawad

  3. Egyptian Petroleum Research Institute (EPRI), 1 Ahmed El-Zomor Street - El Zohour Region ,Nasr city, Cairo, 11727, Egypt

    Ahmed Zakaria Noah

  4. Department of Petroleum Geology and Natural Gas, Faculty of Earth Sciences, University of Beni-Suef, Beni-Suef, Egypt

    Mohamed Abdelwahab Ataallah

Authors
  1. Hassan Mohamed El Shayeb
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  2. Gouda Ismail Abdel-Gawad
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  3. Ahmed Zakaria Noah
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  4. Mohamed Mahmoud Abuelhasan
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  5. Mohamed Abdelwahab Ataallah
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Correspondence to Mohamed Abdelwahab Ataallah.

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This article is part of the Topical Collection on Current Advances in Geological Research of Egypt

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El Shayeb, H.M., Abdel-Gawad, G.I., Noah, A.Z. et al. Comparative study between density porosity and density magnetic resonance porosity: a case study of Sequoia gas reservoir, Mediterranean offshore gas, Egypt. Arab J Geosci 13, 316 (2020). https://doi.org/10.1007/s12517-020-5221-3

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  • DOI: https://doi.org/10.1007/s12517-020-5221-3

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