DOI: 10.1306/12131010046
Scopus记录号: 2-s2.0-79959970926
论文题名: Hydrocarbon plumbing systems of salt minibasins offshore Angola revealed by three-dimensional seismic analysis
作者: Andresen K.J. ; Huuse M. ; Schødt N.H. ; Clausen L.F. ; Seidler L.
刊名: AAPG Bulletin
ISSN: 0149-1852
EISSN: 1558-9582
出版年: 2011
发表日期: 2011
卷: 95, 期: 6 起始页码: 1039
结束页码: 1065
语种: 英语
Scopus关键词: Carrier beds
; Congo basins
; Cylindrical pipes
; Diagenetic fluids
; Diagenetic process
; Flow regimes
; Fluid migration
; High reflectivity
; Holocenes
; Hydrocarbon systems
; Low-amplitude
; Middle Miocene
; Miocene
; Pliocene
; Plumbing Systems
; Pore waters
; Salt structures
; Sea floor
; Seismic analysis
; Seismic datas
; Aquifers
; Data flow analysis
; Fluids
; Hydrogeology
; Methane
; Organic compounds
; Pipe
; Plumbing
; Seismology
; Systems analysis
; Tectonics
; Three dimensional
; Water piping systems
; Flow of fluids
; data set
; diagenesis
; fluid expulsion
; Holocene
; methane
; Miocene
; offshore application
; overburden
; pipe
; Pleistocene
; Pliocene
; pockmark
; porewater
; reflectivity
; seafloor
; seismic data
; seismic method
; seismic reflection
; tectonostratigraphy
; Angola
; Congo Basin
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Analysis of three-dimensional seismic data from the lower Congo Basin, offshore Angola, reveals numerous fluid-flow features in the Miocene to Holocene succession and the potential for large, shielded traps underneath basinward overhanging salt structures. The fluid-flow evidence includes present-day sea floor pockmarks clustered above salt structures, PliocenePleistocene stacked paleopockmarks and Miocene pockmark fields. Other fluid-flow features include high-amplitude cylindrical pipe structures 60 to 300 m (197-984 ft) wide and 25 to 300 m (82-984 ft) high within lower and middle Miocene strata, thick (<150 m [492 ft]) high-reflectivity zones within the Pliocene succession associated with bottom-simulating reflections, and subvertical low-amplitude chimneys originating from the deeper section (> 1 km [0.6 mi] beneath the sea floor). The Miocene pockmark fields occur at a specific horizon, suggesting a regional fluid expulsion event at ca. 12 Ma, and the Miocene fluid-flow regime is interpreted to be dominated by thermogenic fluids supplied via carrier beds and leaking vertically above structural highs. The Pliocene-Pleistocene fluidflow regime was dominated by short-distance vertical fluid migration and expulsion related to early stage diagenetic processes involving biogenic methane and pore water. The present-day fluid-flow regime is inferred to be dominated by thermogenic fluids primarily controlled by kilometer-scale salt-flankcontrolled migration. The study emphasizes the use of seismically imaged fluidflow features in hydrocarbon systems analysis by documenting the evolution of an overburden plumbing system through time, involving several fluid types and flow regimes, depending on the spatiotemporal availability of thermogenic and diagenetic fluids and the tectonostratigraphic occurrence of aquifers, traps, and seals. Copyright ©2011. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79959970926&doi=10.1306%2f12131010046&partnerID=40&md5=d45ae51b39a621cf8c4e06654fb08ad6
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13421
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:
Andresen K.J.,Huuse M.,Schødt N.H.,et al. Hydrocarbon plumbing systems of salt minibasins offshore Angola revealed by three-dimensional seismic analysis[J]. AAPG Bulletin,2011-01-01,95(6)