DOI: 10.1306/04091514189
Scopus记录号: 2-s2.0-84944350890
论文题名: Depositional processes and impact on reservoir quality in deepwater Paleogene reservoirs, US Gulf of Mexico
作者: Marchand A.M.E. ; Apps G. ; Li W. ; Rotzien J.R.
刊名: AAPG Bulletin
ISSN: 0149-1482
EISSN: 1558-9212
出版年: 2015
发表日期: 2015
卷: 99, 期: 9 起始页码: 1635
结束页码: 1648
语种: 英语
Scopus关键词: Architecture
; Petrography
; Silt
; Submarines
; Architectural element
; Compositional characteristics
; Compositional difference
; Depositional environment
; Depositional process
; Grain size analysis
; Orders of magnitude
; Routine core analysis
; Deposition
; deep water
; depositional environment
; grain size
; gravity flow
; lithofacies
; Paleogene
; permeability
; porosity
; reservoir
; sandstone
; water quality
; Atlantic Ocean
; Gulf of Mexico
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Reservoir deliverability is a critical risk for deepwater Paleogene reservoirs in the Gulf of Mexico. Permeability can vary two orders of magnitude (Is to 100s of md) for a given porosity within a single lithofacies. The objective of this paper is to frame reservoir quality within the architectural elements of submarine gravity flows in a deepwater Paleogene field. Approximately 380 m (1246 ft) of core was described from a lower and upper reservoir, and core descriptions were integrated with routine core analysis, petrography, and laser grain size analysis data. We distinguished specific rock property suites, textural, and compositional characteristics for channel, lobe, and lobe margin depositional environments. Channel architectural elements have the best reservoir quality because they are generally relatively coarser-grained and have a relatively low abundance of silt-sized particles (average 24%) and ductile grains (average 17%) dispersed as framework grains. Lobe architectural elements in the lower reservoir display moderate reservoir quality, and are composed of fine-to very fine-grained sandstone, with an average of 34% silt and 18% ductile grains. Upper reservoir lobes contain more silt (average 40%) and ductile grains (average 29%), and poorer reservoir quality. Reservoir quality is overall poor in the lobe margins where silt-sized particles and ductile grains are most abundant. The observed textural and compositional differences from the channel, lobe, to lobe margin environments are the result of grain segregations during transport within submarine gravity flows. As a best practice, reservoir quality should be examined in a depositional environment context. Copyright © 2015. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84944350890&doi=10.1306%2f04091514189&partnerID=40&md5=10a8291ffb9535f058a75e024645eaf9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13053
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:
Marchand A.M.E.,Apps G.,Li W.,et al. Depositional processes and impact on reservoir quality in deepwater Paleogene reservoirs, US Gulf of Mexico[J]. AAPG Bulletin,2015-01-01,99(9)