气候变化领域集成服务门户(CCPortal): Compositional variation in modern estuarine sands: Predicting major controls on sandstone reservoir quality

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DOI	10.1306/09181818025
	Compositional variation in modern estuarine sands: Predicting major controls on sandstone reservoir quality
	Griffiths J.; Worden R.H.; Wooldridge L.J.; Utley J.E.P.; Duller R.A.
发表日期	2019
ISSN	0149-1423
卷号	103 期号:4
英文摘要	Primary depositional mineralogy has amajor impact on sandstone reservoir quality. The spatial distribution of primary depositional mineralogy in sandstones is poorly understood, and consequently, empirical models typically fail to accurately predict reservoir quality. To address this challenge, we have determined the spatial distribution of detrital minerals (quartz, feldspar, carbonates, and clay minerals) in surface sediment throughout the Ravenglass Estuary, United Kingdom. We have produced, for the first time, high-resolution maps of detrital mineral quantities over an area that is similar to many oil and gas reservoirs. Spatial mineralogy patterns (based on X-ray diffraction data) and statistical analyses revealed that estuarine sediment composition is primarily controlled by provenance (i.e., the character of bedrock and sediment drift in the source area). The distributions of quartz, feldspar, carbonates, and clay minerals are controlled by a combination of the grain size of specific minerals (e.g., rigid vs. brittle grains) and estuarine hydrodynamics. The abundance of quartz, feldspar, carbonates, and clay minerals is predictable as a function of depositional environment and critical grain-size thresholds. This study may be used, by analogy, to better predict the spatial distribution of sandstone composition and thus reservoir quality in ancient and deeply buried estuarine sandstones. © 2019 American Association of Petroleum Geologists. All rights reserved.
语种	英语
scopus关键词	Carbonates; Deposition; Estuaries; Feldspar; Forecasting; Grain size and shape; Petroleum reservoir engineering; Petroleum reservoirs; Quality control; Quartz; Sandstone; Sediments; Spatial distribution; Compositional variation; Critical grain sizes; Depositional environment; High resolution maps; Oil and gas reservoir; Sandstone composition; Sandstone reservoirs; X-ray diffraction data; Clay minerals; chemical composition; deposition; depositional environment; estuarine environment; estuarine sediment; grain size; mineralogy; prediction; quality control; reservoir; sand; sandstone; spatial distribution; Cumbria; England; Ravenglass; United Kingdom
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/125028
作者单位	Department of Earth, Ocean and Ecological Sciences, University of Liverpool, Liverpool, United Kingdom
推荐引用方式 GB/T 7714	Griffiths J.,Worden R.H.,Wooldridge L.J.,et al. Compositional variation in modern estuarine sands: Predicting major controls on sandstone reservoir quality[J],2019,103(4).
APA	Griffiths J.,Worden R.H.,Wooldridge L.J.,Utley J.E.P.,&Duller R.A..(2019).Compositional variation in modern estuarine sands: Predicting major controls on sandstone reservoir quality.AAPG Bulletin,103(4).
MLA	Griffiths J.,et al."Compositional variation in modern estuarine sands: Predicting major controls on sandstone reservoir quality".AAPG Bulletin 103.4(2019).