干旱区生态环境知识资源中心(Arid): Thermogenic gas generation from organic-rich shales in the southeastern Say'un-Masila Basin, Yemen as demonstrated by geochemistry, organic petrology, and basin modeling

Arid

DOI	10.1016/j.petrol.2020.107322
	Thermogenic gas generation from organic-rich shales in the southeastern Say'un-Masila Basin, Yemen as demonstrated by geochemistry, organic petrology, and basin modeling
	Hakimi, Mohammed Hail; Ahmed, Adeeb; Mogren, Saad; Shah, Syed Bilawal Ali; Kinawy, Mostafa M.; Lashin, Aref A.
通讯作者	Hakimi, MH
来源期刊	JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
ISSN	0920-4105
EISSN	1873-4715
出版年	2020
卷号	192
英文摘要	The current study aimed to explore the gas-generating potential and oil-to-gas conversion in the Madbi oil-source rock system based on data from deep well within the Say'un-Masila Basin using both geochemical and petrological methods as well as basin models. Biomarker results for the bitumen from analyzed shale samples indicate mixed organic matter, with mainly phytoplankton, bacteria, and some terrigenous land plants, deposited under relatively anoxic marine environmental conditions. The terrigenous organic matter, and rich in lipids from phytoplankton and bacteria, suggests Types II and II/III as the original organic matter during deposition. Such findings are not consistent with the significant amounts of vitrinite and inertinite that found under microscope and the low current hydrogen index (HI) values of 43-282 (Types III/IV and III/II kerogen) of the analyzed shale samples. The chemical and optical maturity indicators show that the Madbi shales throughout the studied well section are at different thermal maturity stages, consistent with late-mature stage of the oil window to gas-generation window. Therefore, this high thermal maturation is the critical factor that significantly modifies the original organic matter. Based on the basin models of the single well studied (Ghayl Bin Yumain-01), the initial conversion of kerogen to oil, occurring between the Late Cretaceous and Late Eocene (75-38 Ma), corresponding to peak-oil window (0.70-1.00 Easy %R-o). Furthermore, the oil was expelled during the Late Eocene to Early Oligocene; hence, the late-mature stage of the oil window (1.00-1.30 Easy %R-o) commenced during this time, with transformation ratios (TR) of 50-70%. Subsequently, the cracking of the retained oil into gas has occurred from the Early Oligocene through the present and is attributed to the high thermal maturation of the gas window (>1.30 Easy % R-o), with maximum TRs of 70-97%.
英文关键词	Madbi Formation Basin modeling Geochemistry Thermogenic gas potential Say'un-Masila Basin Yemen
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000575129700084
WOS关键词	THERMAL MATURITY HISTORY ; MARIB-SHABOWAH BASIN ; SOURCE ROCKS ; DEPOSITIONAL-ENVIRONMENTS ; HYDROCARBON GENERATION ; SEDIMENTARY BASINS ; SHOUSHAN BASIN ; WESTERN DESERT ; HEAT-FLOW ; OIL
WOS类目	Energy & Fuels ; Engineering, Petroleum
WOS研究方向	Energy & Fuels ; Engineering
来源机构	King Saud University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326632
作者单位	[Hakimi, Mohammed Hail] Taiz Univ, Fac Appl Sci, Geol Dept, Taizi 6803, Yemen; [Hakimi, Mohammed Hail; Lashin, Aref A.] Univ Malaya, Dept Geol, Kuala Lumpur 50603, Malaysia; [Ahmed, Adeeb; Shah, Syed Bilawal Ali] Bahria Univ, Dept Earth & Environm Sci, Islamabad 44000, Pakistan; [Mogren, Saad] King Saud Univ, Coll Sci, Dept Geol & Geophys, POB 2455, Riyadh 11451, Saudi Arabia; [Kinawy, Mostafa M.] King Saud Univ, Coll Engn, Petr & Nat Gas Engn Dept, POB 800, Riyadh 11421, Saudi Arabia; [Lashin, Aref A.] Benha Univ, Fac Sci, Geol Dept, POB 13518, Banha, Egypt
推荐引用方式 GB/T 7714	Hakimi, Mohammed Hail,Ahmed, Adeeb,Mogren, Saad,et al. Thermogenic gas generation from organic-rich shales in the southeastern Say'un-Masila Basin, Yemen as demonstrated by geochemistry, organic petrology, and basin modeling[J]. King Saud University,2020,192.
APA	Hakimi, Mohammed Hail,Ahmed, Adeeb,Mogren, Saad,Shah, Syed Bilawal Ali,Kinawy, Mostafa M.,&Lashin, Aref A..(2020).Thermogenic gas generation from organic-rich shales in the southeastern Say'un-Masila Basin, Yemen as demonstrated by geochemistry, organic petrology, and basin modeling.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,192.
MLA	Hakimi, Mohammed Hail,et al."Thermogenic gas generation from organic-rich shales in the southeastern Say'un-Masila Basin, Yemen as demonstrated by geochemistry, organic petrology, and basin modeling".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 192(2020).