干旱区生态环境知识资源中心(Arid): Geochemical characteristics of crude oils and basin modelling of the probable source rocks in the Southern Mesopotamian Basin, South Iraq

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DOI	10.1016/j.petrol.2020.107641
	Geochemical characteristics of crude oils and basin modelling of the probable source rocks in the Southern Mesopotamian Basin, South Iraq
	Al-Khafaji, Amer Jassim; Hakimi, Mohammed Hail; Mohialdeen, Ibrahim M. J.; Idan, Rami M.; Afify, Wafaa E.; Lashin, Aref A.
通讯作者	Hakimi, MH (corresponding author), Taiz Univ, Fac Appl Sci, Geol Dept, Taizi 6803, Yemen.
来源期刊	JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
ISSN	0920-4105
EISSN	1873-4715
出版年	2021
卷号	196
英文摘要	Bulk property and geochemical analyses were performed on 15 crude oil samples collected from the Early Cretaceous clastic reservoirs in the oilfields of the southern Mesopotamian Basin, South Iraq. Specific gravities ranging between 25.4 and 31.6 API and relatively high sulfur concentrations of up to 1.97 wt % suggest that the samples were generated from kerogen Type IBS at relatively low maturity level. Biomarker ratios and parameters as well as carbon isotope ratios, indicate that the oils were derived from marine carbonate-rich source rocks deposited under reducing environmental conditions during the Jurassic to Early Cretaceous. Furthermore, biomarker maturity suggests two maturity subgroups for the samples based on their sulfur concentrations and specific gravity values. Sub-group (A) is characterized by oils generated from low-mature source rocks from the Late Jurassic-Early Cretaceous Sulaiy Formation; while the relatively high mature oils of sub-group (B) were generated from organic-rich intervals in the Jurassic Sargelu and Najmah formations. Basin model results revealed that these formations reached a peak oil-generation window at different times, expelling various quantities of oil. The basin model results further suggest that the organic-rich interval in the Sulaiy Formation began to expel little amounts of oil, corresponding to transformation ratio (TR) between 50 and 63% since the Late Miocene to present-day, while the organic-rich intervals in the Sargelu and Najmah formations were the earliest to expel significant amounts of oil, with relatively high TR values of 50-90% during the end of the Late Cretaceous to Early Eocene and continued to the present-day. These generated oils subsequently migrated to the shallow stratigraphic reservoir intervals through the vertical pathway of faults, and are currently extracted for use in the oil industry.
英文关键词	Oil-oil correlation Cretaceous reservoirs Carbon isotope Biomarker ratios Basin modeling Mesopotamian basin South Iraq
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000600808100022
WOS关键词	PETROLEUM SYSTEM-ANALYSIS ; ZAGROS FOLD BELT ; DEPOSITIONAL-ENVIRONMENTS ; HYDROCARBON GENERATION ; SARGELU FORMATION ; ORGANIC-MATTER ; SHOUSHAN BASIN ; WESTERN DESERT ; NORTH ; MIGRATION
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/2XILL650/348031
作者单位	[Al-Khafaji, Amer Jassim] Univ Babylon, Coll Sci Women, Chem Dept, Al Hillah, Iraq; [Hakimi, Mohammed Hail] Taiz Univ, Fac Appl Sci, Geol Dept, Taizi 6803, Yemen; [Mohialdeen, Ibrahim M. J.] Univ Sulaimani, Coll Sci, Dept Geol, Kurdistan, Iraq; [Idan, Rami M.] Al Karkh Univ Sci, Coll Geophys & Remote Sensing, Baghdad, Iraq; [Idan, Rami M.] Minist Higher Educ & Sci Res, Erbil, Iraq; [Afify, Wafaa E.; Lashin, Aref A.] Benha Univ, Fac Sci, Geol Dept, POB 13518, Banha, Egypt; [Lashin, Aref A.] King Saud Univ, Coll Engn, Petr & Nat Gas Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
推荐引用方式 GB/T 7714	Al-Khafaji, Amer Jassim,Hakimi, Mohammed Hail,Mohialdeen, Ibrahim M. J.,et al. Geochemical characteristics of crude oils and basin modelling of the probable source rocks in the Southern Mesopotamian Basin, South Iraq[J]. King Saud University,2021,196.
APA	Al-Khafaji, Amer Jassim,Hakimi, Mohammed Hail,Mohialdeen, Ibrahim M. J.,Idan, Rami M.,Afify, Wafaa E.,&Lashin, Aref A..(2021).Geochemical characteristics of crude oils and basin modelling of the probable source rocks in the Southern Mesopotamian Basin, South Iraq.JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING,196.
MLA	Al-Khafaji, Amer Jassim,et al."Geochemical characteristics of crude oils and basin modelling of the probable source rocks in the Southern Mesopotamian Basin, South Iraq".JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING 196(2021).