Implications of Organic Matter Input, Sedimentary Environmental Conditions, and Gas Generation Potential of the Organic-Rich Shale in the Onshore Jiza-Qamar Basin, Yemen.
Autor: | Hakimi MH; Geology Department, Faculty of Applied Science, Taiz University, Taiz 6803, Yemen., Kahal A; Geology and Geophysics Department, College of Science, King Saud University, Riyadh 145111, Saudi Arabia., Rahim A; Department of Geotecnics & Transportation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia., Naseem W; Department of Geology, University of Poonch Rawalakot, Azad Jammu & Kashmir Rawalakot 12350, Pakistan., Alsomid W; Geology Department, Faculty of Applied Science, Taiz University, Taiz 6803, Yemen., Al-Buraihi A; Geology Department, Faculty of Applied Science, Taiz University, Taiz 6803, Yemen., Alyousofi T; Geology Department, Faculty of Applied Science, Taiz University, Taiz 6803, Yemen., Alqahtani S; Geology Department, Faculty of Applied Science, Taiz University, Taiz 6803, Yemen., Alyousofi HA; Geology Department, Faculty of Applied Science, Taiz University, Taiz 6803, Yemen., Lotfy NM; Exploration Department, Egyptian Petroleum Research Institute (EPRI), Ahmed El Zommor St. Nasr City, Cairo 11727, Egypt. |
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Jazyk: | angličtina |
Zdroj: | ACS omega [ACS Omega] 2023 Aug 10; Vol. 8 (33), pp. 30483-30499. Date of Electronic Publication: 2023 Aug 10 (Print Publication: 2023). |
DOI: | 10.1021/acsomega.3c03691 |
Abstrakt: | The Jiza-Qamar Basin is one of the most important exploration sedimentary basins in Yemen. For over a decade, the exploration of hydrocarbons has been occurring in this basin. Late Cretaceous age rocks are the most occurring organic-rich sediments in this basin, including coals, coaly shales, and shales. The studied organic-rich shale beds are from the Late Cretaceous Mukalla Formation and associated with coal seams. These organic-rich shales can serve as source rocks for hydrocarbon generation potential. The current study investigates the geochemical characteristics, including assessing the organic matter (OM) input, sedimentary environmental conditions, and hydrocarbon generation potential of the organic-rich shale within the Mukalla Formation from three well locations in the onshore Jiza-Qamar Basin using organic geochemistry, biomarker, and carbon isotope measurements. The studied shale samples have high OM content with total organic carbon values between 0.74 and 19.48 wt %. Furthermore, they contain mainly hydrogen-poor Types III and IV kerogen, indicating the presence of the gas-prone source rock. The presence of these types of kerogen indicates the abundance of vitrinite and inertinite macerals, as established by microscopic investigation. However, the studied organic-rich shales had biomarker features, including high Ph/Ph ratio between 3.82 and 7.46, high Tm/Ts ratio of more than 7, and high C Competing Interests: The authors declare no competing financial interest. (© 2023 The Authors. Published by American Chemical Society.) |
Databáze: | MEDLINE |
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