气候变化领域集成服务门户(CCPortal): Quantitative diamondoid analysis indicates oil cosourcing from a deep petroleum system onshore Niger Delta Basin

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DOI	10.1306/0122201618217407
	Quantitative diamondoid analysis indicates oil cosourcing from a deep petroleum system onshore Niger Delta Basin
	Esegbue O.; Martin Jones D.; van Bergen P.F.; Kolonic S.
发表日期	2020
ISSN	0149-1423
起始页码	1231
结束页码	1259
卷号	104 期号:6
英文摘要	The Niger Delta Basin is one of the most prolific hydrocarbon provinces in the world, yet the origin of the vast amounts of oil and gas found in the numerous subbasins across the delta remains contested. A total of 180 oil samples from more than 40 oil fields in the Niger Delta were analyzed by gas chromatography (GC) and GC-mass spectrometry, and selected samples were analyzed by GC-tandem mass spectrometry. The interpreted thermal maturity and source depositional environments of these hydrocarbons show significant variation depending on the components analyzed and allow no clear correlation to a single source rock but rather imply extensive mixed contributions. Diamondoid hydrocarbon parameters were used for the first time on these Paleogene-Neogene reservoired oils to investigate source, thermal maturity, and mixing effects and perform cross correlations of these oils. The diamondoid abundances and distributions support the hypothesis of cosourcing of oil from a thermally cracked, subdelta, type II marine source, which was then mixed with oils of relatively lower maturities in the Paleogene-Neogene reservoirs. Future geochemical interpretations should treat the Niger Delta oils as potential mixtures of oils of variable maturities from different sources, commonly with the most important source biomarkers depleted because of the extent of thermal cracking. © 2020. The American Association of Petroleum Geologists. All rights reserved. Gold Open
语种	英语
scopus关键词	Gas chromatography; Hydrocarbons; Mass spectrometry; Oil fields; Petroleum geology; Cross correlations; Depositional environment; Geochemical interpretation; Mixing effects; Petroleum systems; Tandem mass spectrometry; Thermal cracking; Thermal maturity; Petroleum analysis; diamond; geochemical survey; oil field; petroleum hydrocarbon; physicochemical property; quantitative analysis; reservoir characterization; thermal maturity; Niger Delta; Nigeria
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/143692
作者单位	School of Civil Engineering and Geosciences, Newcastle University, Newcastle upon Tyne, United Kingdom; Lyell Centre, Heriot-Watt University, Edinburgh, United Kingdom; Shell United Kingdom Ltd., Aberdeen, United Kingdom; Shell Petroleum Development Company of Nigeria Ltd. (SPDC), Port Harcourt, Nigeria
推荐引用方式 GB/T 7714	Esegbue O.,Martin Jones D.,van Bergen P.F.,et al. Quantitative diamondoid analysis indicates oil cosourcing from a deep petroleum system onshore Niger Delta Basin[J],2020,104(6).
APA	Esegbue O.,Martin Jones D.,van Bergen P.F.,&Kolonic S..(2020).Quantitative diamondoid analysis indicates oil cosourcing from a deep petroleum system onshore Niger Delta Basin.AAPG Bulletin,104(6).
MLA	Esegbue O.,et al."Quantitative diamondoid analysis indicates oil cosourcing from a deep petroleum system onshore Niger Delta Basin".AAPG Bulletin 104.6(2020).