Convective stability analysis of the long-term storage of carbon dioxide   in deep saline aquifers

doi:10.1016/j.advwatres.2005.05.008

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	Convective stability analysis of the long-term storage of carbon dioxide in deep saline aquifers
	Xu, XF ; Chen, SY ; Zhang, DX
刊名	水资源进展
	2006
关键词	geologic carbon sequestration porous media anisotropic permeability linear stability analysis global stability analysis ANISOTROPIC POROUS LAYER NATURAL-CONVECTION TEMPERATURE ENERGY ONSET MEDIA
DOI	10.1016/j.advwatres.2005.05.008
英文摘要	Deep saline aquifers are one of the most suitable geologic formations for carbon sequestration. The linear and global stability analysis of the time-dependent density-driven convection in deep saline aquifers is presented for long-term storage of carbon dioxide (CO2). The convective mixing that can greatly accelerate the CO2 dissolution into saline aquifers arises because the density of brine increases upon the dissolution of CO2 and such a density difference may induce instability. The effects of anisotropic permeability on the stability criteria, such as the critical time for the appearance of convective phenomena and the critical wavelength of the most unstable perturbation, are investigated with linear and global stability analysis. The linear stability analysis provides a sufficient condition for instability while the global stability analysis yields a sufficient condition for stability. The results obtained from these two approaches are not exactly the same but show a consistent trend, both indicating that the anisotropic system becomes more unstable when either the vertical or horizontal permeability increases. (c) 2005 Elsevier Ltd. All rights reserved.; Water Resources; SCI(E); EI; 94; ARTICLE; 3; 397-407; 29
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/252259]
专题	工学院
推荐引用方式 GB/T 7714	Xu, XF,Chen, SY,Zhang, DX. Convective stability analysis of the long-term storage of carbon dioxide in deep saline aquifers[J]. 水资源进展,2006.
APA	Xu, XF,Chen, SY,&Zhang, DX.(2006).Convective stability analysis of the long-term storage of carbon dioxide in deep saline aquifers.水资源进展.
MLA	Xu, XF,et al."Convective stability analysis of the long-term storage of carbon dioxide in deep saline aquifers".水资源进展 (2006).