DOI: 10.1306/08101111025
Scopus记录号: 2-s2.0-84860709074
论文题名: Depositional and diagenetic controls on reservoir attributes within a fluvial outcrop analog: Upper Triassic Sonsela member of the Chinle Formation, Petrified Forest National Park, Arizona
作者: Trendeil A.M. ; Atchley S.C. ; Nordt L.C.
刊名: AAPG Bulletin
ISSN: 0149-1778
EISSN: 1558-9508
出版年: 2012
发表日期: 2012
卷: 96, 期: 4 起始页码: 679
结束页码: 707
语种: 英语
Scopus关键词: Alluvial deposits
; Architectural element
; Arizona
; Authigenic clays
; Bed load
; Climatic fluctuations
; Diagenetics
; Fluvial systems
; In-channels
; Intergranular
; National parks
; Reservoir quality
; Stacking patterns
; Upper Triassic
; Deposits
; Forestry
; Petroleum geology
; Petroleum reservoir engineering
; Porosity
; Sandstone
; Parks
; alluvial deposit
; bedload
; biostratigraphy
; depositional environment
; diagenesis
; fluvial deposit
; paleosol
; pedogenesis
; permeability
; precipitation (climatology)
; reservoir
; sandstone
; sedimentology
; succession
; tectonic evolution
; Triassic
; two-dimensional modeling
; Arizona
; Crude Oil
; Deposits
; Geology
; Porosity
; Reservoirs
; Sand Stone
; Arizona
; Petrified Forest National Park
; United States
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: The Upper Triassic Sonsela member of the Chinle Formation in the Petrified Forest National Park was evaluated using sedimentologic, stratigraphie, paleopedologic, and petrographie criteria along a continuous 0.5-km (0.3-mi) outcrop. The study interval consists of interbedded sandstones and mudstones and is composed of a two-tiered hierarchy of cyclic alluvial deposits with bounding paleosols. The succession is composed of 15 fluvial aggradational cycles (FACs) that comprise two FAC sets (FAC-Sets). The FAC-Sets are composed of architectural elements suggestive of a mixed-load fluvial system that is alternately dominated by bed-load deposits and suspended-load deposits. A thinning and fining stacking pattern within FACSets is accompanied by an upward increase in pedogenic modification, suggesting that cycles systematically stack in response to a longer period decrease in the rate of accommodation gain. Sandstones are classified as litharenites, feldspathic litharenites, and lithic subarkoses, and occur within recycled orogen, dissected arc, and transitional arc provenance fields. Sandstone compositional maturity increases upward through the FAC-Sets. Point counts of intergranular volume (as a proxy for primary porosity) within channel faciès and subsequent transform to syndepositional permeability provide a two-dimensional depiction of the lateral variability in reservoir quality. Paleosols are weakly to moderately developed and have little stratigraphie variation. These characteristics suggest that climatic fluctuations are not responsible for evolving fluvial depositional style or associated reservoir quality. Trends in sandstone compositional maturity suggest that fluvial stacking patterns and depositional style are related to pulses of tectonism. Sandstones are volcanogenic rich and have undergone an almost complete diagenetic loss of porosity caused by the precipitation of authigenic clays. Paragenetic reconstruction suggests that porosity loss occurred contemporaneous with the silicification of fossil logs in channel deposits. Log compaction at the time of silicification averaged 9.1%, suggesting that log silicification and porosity loss occurred soon after deposition. Copyright ©2012. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84860709074&doi=10.1306%2f08101111025&partnerID=40&md5=b4a453aacd79bce4ba5517e76158e054
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13348
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:
Trendeil A.M.,Atchley S.C.,Nordt L.C.. Depositional and diagenetic controls on reservoir attributes within a fluvial outcrop analog: Upper Triassic Sonsela member of the Chinle Formation, Petrified Forest National Park, Arizona[J]. AAPG Bulletin,2012-01-01,96(4)