Geochemistry of Oil and Oil–Source Rock Correlation in Kareem-Rudeis Formations in the Central Gulf of Suez, Egypt

Authors

  • Mohamed M El Nady Exploration Department, Egyptian Petroleum Research Institute, Cairo, Egypt Author
  • Fatma S Ramadan Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt Author
  • Ahmed H Saleh Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt Author
  • Nira M Lotfy Exploration Department, Egyptian Petroleum Research Institute, Cairo, Egypt Author
  • Wafaa A El Hemimey Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt Author

DOI:

https://doi.org/10.47363/JOPNGR/2025(2)108

Keywords:

Oil/Source Rock Correlations, Rudeis and Kareem Formations, Biomarkers, Star Plot, HCA, Gulf of Suez

Abstract

The present study focuses on organic geochemical studies of source rock and crude oil in Kareem and Rudeis rocks in GG85-1, WFA-1 wells in the central Gulf of Suez. The objectives of this study are the correlation between the two crude oil samples from Kareem Formation and Rudeis Formation and their extracts. The physical and geochemical studies revealed that the the generated oil from Kareem and Rudeis formations are classified as mature and paraffinic oils generated from mixed organic source under suboxic depositional conditions. Meanwhile, their extracts show different maturity level and organic source. Both the geochemical and chemometric analyses (HCA) reveal no affinity between the generated oils of kareem and Rudeis formations and their organic matter. This indicates that the oils reservoired in Kareem and Rudeis formation originated from another source rock. Rudeis and Kareem formation are not the effective source rock in the central Gulf of Suez.

Author Biographies

  • Mohamed M El Nady, Exploration Department, Egyptian Petroleum Research Institute, Cairo, Egypt

    Exploration Department, Egyptian Petroleum Research Institute, Cairo, Egypt

  • Fatma S Ramadan, Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt

    Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt

  • Ahmed H Saleh, Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt

    Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt

  • Nira M Lotfy, Exploration Department, Egyptian Petroleum Research Institute, Cairo, Egypt

    Exploration Department, Egyptian Petroleum Research Institute, Cairo, Egypt

  • Wafaa A El Hemimey, Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt

    Geology Department, Faculty of Science, Zagazig University, Zagazig, Egypt

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Published

2025-06-30

Issue

Vol. 2 No. 2 (2025): Volume 2 Issue 2

Section

Articles