Source rock evaluation of Jurassic rock units for Imhotep field, Matruh basin, Western Desert, Egypt

Document Type : Original Article

Authors

1 Faculty of science, Al-Azhar University, Cairo, Egypt

2 Exploration, Egyptian Petroleum Research Institute (EPRI)

3 Geology Department, Faculty of science, Al-Azhar University, Cairo, Egypt.

Abstract

More advanced techniques in organic geochemical evaluation and geoscience integration reveal clear understanding of oil field stories. The Imhotep field represents one of these wild oil fields in Western Desert. This study may represent the first comprehensive work to evaluate this field. Selected eighty-four (84) ditch samples and “4” extract samples representing Lower Safa and Upper Safa members were gathered from five wells (Imhotep-1X, Imhotep-2X, Imhotep W-1X, Imhotep S-1X, and Imhotep S-3X) to conduct this study. The samples were examined utilizing LECO C230, Rock–Eval-6 and GC techniques. The studied sample analysis demonstrates that the Total Organic Carbon content (TOC) extends from poor to excellent hydrocarbon potentiality. The maturity evaluation using Tmax and the calculated Vitrinite reflectance (Ro) revealed that the extracted samples have good thermal maturation and attain the oil generation stage. Also, the analysis revealed that the kerogen of study samples is mixed type II/III kerogen, and this reflects the potential to generate gas and oil and reach the final phase of oil generation. The GC results suggest that the organic matter is marine, mixed with terrestrial input, and the deposition was under reducing to a suboxic environment.

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History

  • Receive Date: 20 March 2023
  • Revise Date: 24 June 2023
  • Accept Date: 07 July 2023

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