Scopus记录号: 2-s2.0-84860779615
论文题名: Evaluation of hydrocarbon potential of the Paleozoic (Cambrian-Devonian) source rocks of the Gaspé Peninsula, Québec, Canada: Geochemical characterization, expulsion efficiency, and erosion scenario
作者: Grundman G. ; Behar F. ; Malo M. ; Baudin F. ; Lorant F.
刊名: AAPG Bulletin
ISSN: 0149-1800
EISSN: 1558-9530
出版年: 2012
发表日期: 2012
卷: 96, 期: 4 起始页码: 729
结束页码: 751
语种: 英语
Scopus关键词: Erosion
; Geochemistry
; Geochronology
; Hydrocarbons
; Hydrogen
; Kerogen
; Petroleum reservoir engineering
; Solvent extraction
; Basin modeling
; Burial depths
; Gas shales
; Geochemical characterization
; Geochemical data
; Geothermal gradients
; Hydrocarbon potential
; Hydrogen indices
; Input datas
; Oil and gas
; Organic carbon contents
; Paleozoic
; Peak profiles
; Rock-Eval
; Silurian-Devonian
; Source rocks
; Thermal maturation
; Vitrinite reflectance
; Rocks
; geochemical method
; geothermal energy
; hydrocarbon generation
; kerogen
; organic carbon
; Paleozoic
; source rock
; vitrinite reflectance
; Canada
; Gaspe Peninsula
; Quebec [Canada]
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Several petroleum source rocks and reservoirs are recognized in the Gaspé Peninsula, Québec, Canada, and numerous geochemical data were published on source rocks for wells drilled in both the Cambrian-Ordovician and Silurian-Devonian series. The aim of this work is to evaluate their respective contribution of oil and gas prospects and to prepare geochemical input data for a further basin modeling study. Rocks samples were collected from both series, 46 from the CambrianOrdovician formations and 275 from the Silurian-Devonian formations. They were collected mainly from well cuttings, and a few of them come from outcrops. Most of the Silurian-Devonian rocks are lean rocks with organic carbon content (Corg) lower than 0.5%. They exhibit systematic abnormal S1 (free hydrocarbons) and S2 (potential hydrocarbons) peaks from Rock-Eval 6 profiles, with compounds detected before and after the Sz peak. However, typical S2 peak profiles were obtained in isolated kerogens after solvent extraction. Kerogens were sorted with increasing depth. Between 1200 and 2600 m (3937-8530 ft), the observed hydrogen index (HI) value decrease is correlated with an H/C ratio decrease and a vitrinite reflectance (R0) increase. The amount of extract is about 200 mg/g C whatever the burial depth. These results suggest that Silurian-Devonian rocks underwent thermal maturation between 0.8 and 1.4% R 0. Their capacity to expel oil seems to be very limited; however, they have potential as gas shale. Finally, a minimum regional erosion thickness about 4300 m (~ 14,108 ft) was derived by comparing the computed HI evolution with the observed trend for a geothermal gradient at 23°C/km. For the Cambrian-Ordovician rocks, Corg values are richer in both immature and mature samples. The Si and S2 peaks from Rock-Eval 6 profiles are standard with HI values more than 300 to 400 mg/g C. The R0 being more than 1.6%, these source rocks are more oil than gas prone. Copyright ©2012. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860779615&partnerID=40&md5=6c719d2dd72c86903e43d6f2eaf280fd
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13370
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:
Grundman G.,Behar F.,Malo M.,et al. Evaluation of hydrocarbon potential of the Paleozoic (Cambrian-Devonian) source rocks of the Gaspé Peninsula, Québec, Canada: Geochemical characterization, expulsion efficiency, and erosion scenario[J]. AAPG Bulletin,2012-01-01,96(4)