DOI: 10.1306/07020909062
Scopus记录号: 2-s2.0-76749164948
论文题名: Reservoir characterization and facies prediction within the Late Cretaceous Doe Creek Member, Valhalla field, west-central Alberta, Canada
作者: Atchley S.C. ; Ball N.H. ; Hunt L.E.
刊名: AAPG Bulletin
ISSN: 0149-1957
EISSN: 1558-9687
出版年: 2010
发表日期: 2010
卷: 94, 期: 1 起始页码: 1
结束页码: 25
语种: 英语
Scopus关键词: Alberta , Canada
; Calcite-cement
; Coarser grains
; Coastal embayments
; Density porosity
; Facies distribution
; Fluid production
; Forebulge
; Late cretaceous
; Mudrocks
; Neutron porosity
; Oil resource
; Pore volume
; Reservoir characterization
; Reservoir quality
; Resistivity values
; Shale volume
; Shallower water
; Shoreface
; Upper Cretaceous
; Well logs
; Calcite
; Carbonate minerals
; Cements
; Petroleum deposits
; Sandstone
; Sediment transport
; Well logging
; Petroleum reservoir evaluation
; coastal erosion
; Cretaceous
; density
; depositional environment
; lithostratigraphy
; mudstone
; porosity
; reservoir characterization
; sandstone
; sediment transport
; shallow water
; Atlantic Ocean
; North Sea
; Valhall Field
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Oil resources at Valhalla field of west-central Alberta, Canada, are stratigraphically trapped within the Upper Cretaceous Doe Creek Member of the Kaskapau Formation. The reservoir is subdivided into four thin (1-10 m [3-33 ft]), cyclic alternations of offshore mudrock and shoreface sandstone that are designated the I - 1, I, I + 1, and 1 + 2 units. The thickest and most widespread I sandstone is the primary reservoir. Optimum reservoir quality corresponds to coarser grain shoreface sandstone; however, reservoir quality may be diminished by postdepositional calcite cement commonly observed near the top of shoreface sandstones. Open-hole well logs are used to predict depositional facies and calcite cement occurrence in wells that lack core control. Decreasing shale volume (Vsh) and increasing deep resistivity values correspond to progressively shallower water deposits. Zones of calcite-cemented shoreface sandstone greater than 0.5 m (1.6 ft) thick are interpreted when the neutron porosity exceeds the density porosity by more than 7%. Facies distributions predicted for the I sandstone closely match trends of the sandstone gross pore volume and daily total fluid production, and suggest that open-hole well logs may be used to anticipate reservoir quality and continuity. Regional and local observations support previous interpretations that attribute the Doe Creek to forebulge erosion and southwestward sediment transport toward a foredeep where shoreface sandstones accumulated within a coastal embayment to the Western Interior seaway. Regionally, the Doe Creek interval thins northeast of Valhalla and is truncated beneath the K1 unconformity, and shoreface sandstone bodies are encased within offshore mudrocks and detached from their contemporaneous shoreline. Locally at Valhalla, the Doe Creek reservoir progrades toward the southwest and is extensively and commonly uniformly burrowed by a relatively diverse assemblage of trace makers. Copyright © 2010. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-76749164948&doi=10.1306%2f07020909062&partnerID=40&md5=adab36d206f2cfc3d73e2a4a0929c3c2
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13526
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:
Atchley S.C.,Ball N.H.,Hunt L.E.. Reservoir characterization and facies prediction within the Late Cretaceous Doe Creek Member, Valhalla field, west-central Alberta, Canada[J]. AAPG Bulletin,2010-01-01,94(1)