气候变化领域集成服务门户(CCPortal): Homogenization of Dissolution and Enhanced Precipitation Induced by Bubbles in Multiphase Flow Systems

CCPortal

DOI	10.1029/2020GL087163
	Homogenization of Dissolution and Enhanced Precipitation Induced by Bubbles in Multiphase Flow Systems
	Jiménez-Martínez J.; Hyman J.D.; Chen Y.; Carey J.W.; Porter M.L.; Kang Q.; Guthrie G.; Jr.; Viswanathan H.S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:7
英文摘要	Multiphase flow is ubiquitous in subsurface energy applications and natural processes, such as oil recovery, CO2 sequestration, and water flow in soils. Despite its importance, we still lack a thorough understanding of the coupling of multiphase flow and reaction of transported fluids with the confining media, including rock dissolution and mineral precipitation. Through the use of geomaterial microfluidic flow experiments and high-performance computer simulations, we identify key pore-scale mechanisms that control this coupling. We compare the reactivity of fractured limestone with CO2-saturated brine (single phase) and a mixture of supercritical (sc) CO2 and CO2-saturated brine (multiphase). We find that the presence of scCO2 bubbles significantly changes both the flow dynamics and the resulting reaction patterns from a single-phase system, spatially homogenizing the rock dissolution. In addition, bubbles redirect oversaturated fluid into low-velocity regions, thereby enhancing carbonate precipitation occurs. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Carbon dioxide; Dissolution; Flow of water; Lime; Minerals; Carbonate precipitation; Energy applications; High performance computers; Low velocity region; Microfluidic flow; Mineral precipitation; Multi-phase flow systems; Single phase system; Multiphase flow; brine; carbon sequestration; detection method; dissolution; hydrocarbon seep; limestone; multiphase flow; precipitation (chemistry)
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/170516
作者单位	Department of Water Resources and Drinking Water, Eawag, Dübendorf, Switzerland; Department of Civil, Environmental and Geomatic Engineering, ETH Zürich, Zürich, Switzerland; Earth & Environmental Sciences, Los Alamos National Laboratory, Los Alamos, NM, United States
推荐引用方式 GB/T 7714	Jiménez-Martínez J.,Hyman J.D.,Chen Y.,et al. Homogenization of Dissolution and Enhanced Precipitation Induced by Bubbles in Multiphase Flow Systems[J],2020,47(7).
APA	Jiménez-Martínez J..,Hyman J.D..,Chen Y..,Carey J.W..,Porter M.L..,...&Viswanathan H.S..(2020).Homogenization of Dissolution and Enhanced Precipitation Induced by Bubbles in Multiphase Flow Systems.Geophysical Research Letters,47(7).
MLA	Jiménez-Martínez J.,et al."Homogenization of Dissolution and Enhanced Precipitation Induced by Bubbles in Multiphase Flow Systems".Geophysical Research Letters 47.7(2020).