气候变化领域集成服务门户(CCPortal): Quantifying Fluid-Wettable Effective Pore Space in the Utica and Bakken Oil Shale Formations

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DOI	10.1029/2020GL087896
	Quantifying Fluid-Wettable Effective Pore Space in the Utica and Bakken Oil Shale Formations
	Zhang Y.; Hu Q.; Barber T.J.; Bleuel M.; Anovitz L.M.; Littrell K.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:14
英文摘要	Combined (ultra-) small angle neutron scattering measurements [(U)SANS] and a contrast matching technique were employed to quantify the porosity and pore size distribution from 1 nm to 10 μm and to differentiate accessible (open) pores and inaccessible (closed) pores with respect to organophilic and hydrophilic fluids for two Utica and two Bakken shale samples. The results indicate that around 40–70% of the pores in the Utica oil shales (mixed carbonate mudstone) are accessible to oil, and 34–37% of the pore surfaces are water-wet. In contrast, the Bakken oil shales (mixed siliceous mudstone and carbonate/siliceous mudstone), which have high total organic carbon contents, have a higher proportion of isolated pore space that is not preferentially wet by oil or water, with less than 36% of the pores accessible to both fluids. In addition, for both formations, pores less than 3 nm in diameter are not oil accessible (organic matter related) but water accessible (clay tactoids related). ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Neutron scattering; Organic carbon; Pore size; Sedimentary rocks; Contrast matching; Effective pores; Isolated pores; Porosity and pore size; Shale formation; Siliceous mudstone; Small-angle neutron scattering measurements; Total organic carbon content; Oil shale; mudstone; neutron scattering; oil shale; pore space; porosity; quantitative analysis; total organic carbon
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170121
作者单位	Department of Earth and Environmental Sciences, University of Texas at Arlington, Arlington, TX, United States; Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, United States; Department of Materials Science and Engineering, University of Maryland, College Park, MD, United States; Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States; Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN, United States
推荐引用方式 GB/T 7714	Zhang Y.,Hu Q.,Barber T.J.,et al. Quantifying Fluid-Wettable Effective Pore Space in the Utica and Bakken Oil Shale Formations[J],2020,47(14).
APA	Zhang Y.,Hu Q.,Barber T.J.,Bleuel M.,Anovitz L.M.,&Littrell K..(2020).Quantifying Fluid-Wettable Effective Pore Space in the Utica and Bakken Oil Shale Formations.Geophysical Research Letters,47(14).
MLA	Zhang Y.,et al."Quantifying Fluid-Wettable Effective Pore Space in the Utica and Bakken Oil Shale Formations".Geophysical Research Letters 47.14(2020).