DOI: 10.1306/04211009142
Scopus记录号: 2-s2.0-77955934194
论文题名: Origin and timing of late diagenetic illite in the permian-carboniferous unayzah sandstone reservoirs of Saudi Arabia
作者: Franks S.G. ; Zwingmann H.
刊名: AAPG Bulletin
ISSN: 0149-1914
EISSN: 1558-9644
出版年: 2010
发表日期: 2010
卷: 94, 期: 8 起始页码: 1133
结束页码: 1159
语种: 英语
Scopus关键词: Burial history
; Controlled reactions
; Diagenetic illites
; Diagenetics
; K-feldspar
; Permian
; Quartz grains
; Sandstone reservoirs
; Saudi Arabia
; Surface area
; Thermal events
; Thin section
; Time-temperature
; Cements
; Hydrocarbons
; Kaolinite
; Sandstone
; Silicate minerals
; Time measurement
; Quartz
; Carboniferous
; cementation
; feldspar
; hydrocarbon
; illite
; kaolinite
; nucleation
; numerical model
; Permian
; porosity
; potassium
; precipitation (chemistry)
; quartz
; reaction kinetics
; reservoir
; sandstone
; temperature effect
; Saudi Arabia
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Diagenetic illite is one of two major porosity occluding cements in the Unayzah sandstone reservoirs (Permian-Carboniferous) of Saudi Arabia. The other is diagenetic quartz. This article focuses on the origin of illite and its timing. Illite has been formed by a reaction of detrital K-feldspar and early diagenetic kaolinite as temperatures increased due to burial. When either of the two reactants is exhausted, illite ceases to precipitate. There is no evidence that hydrocarbon emplacement, deep brine migration, or unique thermal events are factors in illite precipitation. Modeling of illite precipitation as a kinetically controlled reaction using burial histories of the samples studied generally yields a reasonable match between measured and modeled ages and amounts of illite. This lends further support to the gradual formation of illite over a time-temperature interval. Although quartz overgrowths and diagenetic illite may occur in the same thin section, they appear to be mutually exclusive locally. Quartz overgrowths do not occur on detrital quartz grains that are coated with diagenetic illite, and illite is rarely observed on quartz overgrowths. Therefore, it appears that not only does diagenetic illite inhibit nucleation of quartz overgrowths but quartz overgrowths may also inhibit precipitation of diagenetic illite. The two cements appear to compete for surface area on uncoated detrital quartz grains. Copyright © 2010. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-77955934194&doi=10.1306%2f04211009142&partnerID=40&md5=0c1180e496548ce1374dab0fc4f2e6a1
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13483
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:
Franks S.G.,Zwingmann H.. Origin and timing of late diagenetic illite in the permian-carboniferous unayzah sandstone reservoirs of Saudi Arabia[J]. AAPG Bulletin,2010-01-01,94(8)