Implications of Organic Matter Input, Sedimentary Environmental Conditions, and Gas Generation Potential of the Organic-Rich Shale in the Onshore Jiza-Qamar Basin, Yemen.

التفاصيل البيبلوغرافية
العنوان:	Implications of Organic Matter Input, Sedimentary Environmental Conditions, and Gas Generation Potential of the Organic-Rich Shale in the Onshore Jiza-Qamar Basin, Yemen.
المؤلفون:	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.
المصدر:	ACS omega [ACS Omega] 2023 Aug 10; Vol. 8 (33), pp. 30483-30499. Date of Electronic Publication: 2023 Aug 10 (Print Publication: 2023).
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: American Chemical Society Country of Publication: United States NLM ID: 101691658 Publication Model: eCollection Cited Medium: Internet ISSN: 2470-1343 (Electronic) Linking ISSN: 24701343 NLM ISO Abbreviation: ACS Omega Subsets: PubMed not MEDLINE
أسماء مطبوعة:	Original Publication: Washington, D.C. : American Chemical Society, [2016]-
مستخلص:	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 29 regular steranes compared to C 27 and C 28 regular steranes. Apart from the biomarker results, the studied Mukalla shales are characterized by the abundance of land-derived OM that deposited in fluvial to fluvial deltaic environments under highly oxic conditions. The finding of the considerable concentration of terrigenous OM is probably confirmed by the bulk carbon isotope and maceral composition data. The maturity indicators show that the examined organic-rich shale samples in the studied wells exhibit low VR values of up to 0.71%, and thereby, they have not been yet reached the high maturity for gas generation. This low maturity level in the studied wells is probably attributed to shallow burial depth, exhibiting depth of up to 2835 m. Therefore, the substantial gas exploration operations from the organic-rich shale source rock system of the Late Cretaceous Mukalla Formation can be recommended in the deeper stratigraphic succession in the offshore Jiza-Qamar Basin. Competing Interests: The authors declare no competing financial interest. (© 2023 The Authors. Published by American Chemical Society.)
References:	Sci Rep. 2020 Dec 17;10(1):22108. (PMID: 33335176) ACS Omega. 2022 Nov 14;7(47):42960-42974. (PMID: 36467918)
تواريخ الأحداث:	Date Created: 20230828 Latest Revision: 20230829
رمز التحديث:	20231215
مُعرف محوري في PubMed:	PMC10448491
DOI:	10.1021/acsomega.3c03691
PMID:	37636926
قاعدة البيانات:	MEDLINE

Find this issue from the American Chemical Society

Full Text Finder

الوصف
تدمد:	2470-1343
DOI:	10.1021/acsomega.3c03691