DOI: 10.1306/08101514152
Scopus记录号: 2-s2.0-84968763873
论文题名: Regional petroleum alteration trends in Barents Sea oils and condensates as a clue to migration regimes and processes
作者: Lerch B. ; Karlsen D.A. ; Abay T.B. ; Duggan D. ; Seland R. ; Backer-Owe K.
刊名: AAPG Bulletin
ISSN: 0149-1425
EISSN: 1558-9155
出版年: 2016
发表日期: 2016
卷: 100, 期: 2 起始页码: 165
结束页码: 190
语种: 英语
Scopus关键词: Biodegradation
; Petroleum reservoirs
; Alteration effects
; Central Basin
; Distribution patterns
; Gas oil ratios
; Light hydrocarbon
; Physiochemical process
; Systematic evaluation
; Thermal maturity
; Gas oils
; basin
; biodegradation
; condensate
; hydrocarbon
; hydrocarbon migration
; petroleum
; thermal maturity
; uplift
; Arctic Ocean
; Barents Sea
; Finnmark
; Hammerfest Basin
; Nordkapp Basin
; Norway
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: To date, most condensates and gases found in the Hammerfest Basin exist in distal, central basin settings, in traps with tight cap rocks of class 1 traps, whereas low-gas-oil-ratio (GOR) oils occur systematically in proximal basin settings, where cap rocks of class 3 traps prevail. Multiple fill-spill events resulted in the redistribution of oils toward structurally higher basin margins. In a systematic evaluation of light hydrocarbon parameters from condensates and oils, it was found that oils in general exhibit more traceable alteration effects than do condensates. Whereas 75% of condensate and 13.3% of oil samples are fractionated, 6.25% and 10%, respectively, show signs of biodegradation. Long-distance migration is indicated for 12.5% of condensate and 50% of oil samples. In addition, clear evidence is shown for the mixing of recently migrated high-GOR petroleum phases with older, low-GOR paleo oils. In general, variation in source-specific parameters is surprisingly less pronounced. Decreasing thermal maturity of entrapped petroleum from the eastern part of the Tromsø Basin toward the Måsøy-Nysleppen Fault Complex is observed, whereas high maturities are shown for the Nordkapp Basin and the Finnmark Platform in the eastern part of the study area. Low-to-medium maturities are recorded for oils from the basin margins of the Hammerfest Basin. Alterations in the composition of the petroleums by physiochemical processes and distribution patterns of the petroleums are closely associated with uplift and erosion. © Copyright 2016. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84968763873&doi=10.1306%2f08101514152&partnerID=40&md5=a349c9e6ae15f8cc4ff60da3f960d132
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/12996
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:
Lerch B.,Karlsen D.A.,Abay T.B.,et al. Regional petroleum alteration trends in Barents Sea oils and condensates as a clue to migration regimes and processes[J]. AAPG Bulletin,2016-01-01,100(2)