DOI: 10.1306/10221413197
Scopus记录号: 2-s2.0-84925682571
论文题名: Hydrocarbon potential of Ordovician-Silurian successions in Akkas field, western desert of Iraq
作者: Alkhafaji M.W. ; Aljubouri Z.A. ; Aldobouni I.A. ; Littke R.
刊名: AAPG Bulletin
ISSN: 0149-1464
EISSN: 1558-9194
出版年: 2015
发表日期: 2015
卷: 99, 期: 4 起始页码: 617
结束页码: 637
语种: 英语
Scopus关键词: Biogeochemistry
; Biological materials
; Carbon
; Hydrocarbons
; Oil shale
; Organic compounds
; Petrography
; Petroleum prospecting
; Shale
; Algal organic matters
; Amorphous organic matters
; Hydrocarbon generation potential
; Hydrocarbon potential
; Hydrocarbon source rocks
; Hydrocarbon sources
; Organic matter types
; Total Organic Carbon
; Organic carbon
; alga
; biomarker
; black shale
; hydrocarbon exploration
; hydrocarbon generation
; kerogen
; Ordovician-Silurian boundary
; organic matter
; petrology
; shale
; source rock
; sulfur
; thermal maturity
; total organic carbon
; Akkas Gas Field
; Anbar
; Iraq
; algae
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: The shale beds of the Khabour and Akkas Formations (Ordovician-Silurian) in Akkas field of western Iraq have been studied to determine their hydrocarbon-generation potential. The total organic carbon (TOC) values of the Khabour Formation were generally low and associated with low S2 and hydrogen index (HI) values indicating that this formation is not a hydrocarbon source, although this could reflect advanced thermal maturity. The gray-green shales of the upper part of the Akkas Formation also have low TOC and S2 values. On the other hand, the TOC, S2, and HI values of the black shales of the lower part of the Akkas Formation were high. The values indicate that the gray-green shales of the upper part of the Akkas Formation are not petroleum sources, whereas the black shales of the lower part can be regarded as potential hydrocarbon source rocks. Organic petrology studies reveal that marine amorphous organic matter is predominant, and no significant differences were observed between Khabour and Akkas samples in terms of organic-matter type. Molecular geochemical data also indicate that the kerogen of the two formations is of similar origin. The normal alkane distribution is unimodal, with a maximum at C16 -C18 , indicating marine algal organic matter. Rock-Eval Tmax and biomarker data indicate that the organic matter of the black shales of the lower part of the Akkas Formation is early mature, whereas the Khabour Formation is highly mature in the Akkas field. Copyright © 2015. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925682571&doi=10.1306%2f10221413197&partnerID=40&md5=c1a16d946779a6301051f777590cfa00
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13035
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
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Recommended Citation:
Alkhafaji M.W.,Aljubouri Z.A.,Aldobouni I.A.,et al. Hydrocarbon potential of Ordovician-Silurian successions in Akkas field, western desert of Iraq[J]. AAPG Bulletin,2015-01-01,99(4)