干旱区生态环境知识资源中心(Arid): Geochemistry and oil-gas generation modeling of the Late Cretaceous shales from the Chad (Bornu) Basin, Northeast Nigeria

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DOI	10.1016/j.jngse.2020.103341
	Geochemistry and oil-gas generation modeling of the Late Cretaceous shales from the Chad (Bornu) Basin, Northeast Nigeria
	Adegoke, Adebanji Kayode; Hakimi, Mohammed Hail; Abdullah, Wan Hasiah; Ibrahim, El-Khedr; Yandoka, Babangida M. Sarki; Al Faifi, Hussain; Lashin, Aref
通讯作者	Hakimi, MH
来源期刊	JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
ISSN	1875-5100
EISSN	2212-3865
出版年	2020
卷号	79
英文摘要	Late Cretaceous Fika Formation shale was collected and analyzed from six wells in northeastern Nigeria's Chad (Bornu) Basin. The characteristics and the oil and gas-generating potential of the source are discussed based on combined geochemistry investigations and basin models. The abundance of marine phytoplanktonic-bacteria and land-plant suggested by biological markers indicate that the kerogen in the Fika shale Formation is a mixture of Types II and III, which is not compatible with the current low Rock-Eval HI findings of less than 200 mg HC/g TOC. The chemical and optical maturity parameters suggest that the Fika shales throughout the studied wells are in the early maturity stage of the oil window near the gas window point. Therefore, thermal maturation is the critical factor that significantly reduces the original HI values and modifies Types II and III to produce oil and gas. Based on the kinetic database models for Types II and III kerogen mixtures, the initial conversion of kerogen to oil has been occurring since the Late Cretaceous in the Kanadi-1 and Tuma-1 wells and since the Eocene in the Kinasar-1, Kuchalli-1, and Faltu-1 wells with transformation ratios (TR) between 10-31% and 10-50%, respectively. Furthermore, the oil was expelled from the Fika shale source rock in the Kanadi-1 and Tuma-1 wells at the end of Late Cretaceous, with TRs of 65-70%. From that period up to the present, the retained oil was cracked into wet gas in the gas window of 1.10-1.30 Easy %Ro with peak TR ratios greater than 65%. The distributions of thermal maturation, conversion ratio, and thickness suggest that the Fika source rock could generate substantial amounts of oil and gas in the southwest part of the basin. Therefore, the southwest part of the Chad (Bornu) Basin is considered a frontier exploration target.
英文关键词	Late Cretaceous Fika Formation Geochemistry Hydrocarbon generation Modeling Chad (Bornu) Basin NE Nigeria
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000539869300013
WOS关键词	THERMAL MATURITY HISTORY ; SOURCE-ROCK ; PETROLEUM GENERATION ; ORGANIC-MATTER ; HYDROCARBON GENERATION ; RIFT BASINS ; SHOUSHAN BASIN ; WESTERN DESERT ; BENUE TROUGH ; NE NIGERIA
WOS类目	Energy & Fuels ; Engineering, Chemical
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/2XILL650/324725
作者单位	[Adegoke, Adebanji Kayode] Ekiti State Univ, Dept Geol, PMB 5363, Ado Ekiti, Nigeria; [Hakimi, Mohammed Hail] Taiz Univ, Fac Appl Sci, Geol Dept, Taizi 6803, Yemen; [Hakimi, Mohammed Hail; Abdullah, Wan Hasiah] Univ Malaya, Dept Geol, Kuala Lumpur 50603, Malaysia; [Ibrahim, El-Khedr; Al Faifi, Hussain] King Saud Univ, Coll Sci, Geol & Geophys Dept, Riyadh, Saudi Arabia; [Yandoka, Babangida M. Sarki] Bayero Univ, Dept Geol, Kano, Nigeria; [Lashin, Aref] King Saud Univ, Coll Engn, Petr & Nat Gas Engn Dept, Riyadh 11421, Saudi Arabia; [Lashin, Aref] Benha Univ, Fac Sci, Geol Dept, POB 13518, Banha, Egypt
推荐引用方式 GB/T 7714	Adegoke, Adebanji Kayode,Hakimi, Mohammed Hail,Abdullah, Wan Hasiah,et al. Geochemistry and oil-gas generation modeling of the Late Cretaceous shales from the Chad (Bornu) Basin, Northeast Nigeria[J]. King Saud University,2020,79.
APA	Adegoke, Adebanji Kayode.,Hakimi, Mohammed Hail.,Abdullah, Wan Hasiah.,Ibrahim, El-Khedr.,Yandoka, Babangida M. Sarki.,...&Lashin, Aref.(2020).Geochemistry and oil-gas generation modeling of the Late Cretaceous shales from the Chad (Bornu) Basin, Northeast Nigeria.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,79.
MLA	Adegoke, Adebanji Kayode,et al."Geochemistry and oil-gas generation modeling of the Late Cretaceous shales from the Chad (Bornu) Basin, Northeast Nigeria".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 79(2020).