Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085175 |
Gravity-Induced Bubble Ripening in Porous Media and Its Impact on Capillary Trapping Stability | |
Xu, Ke1; Mehmani, Yashar2; Shang, Luoran3; Xiong, Qingrong4 | |
2019-12-04 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:23页码:13804-13813 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; England |
英文摘要 | Capillary or residual trapping is considered one of the safest geologic CO2 storage mechanisms due to its hydrodynamic stability. We present a first study of the impact of gravity on Ostwald ripening in porous media and show it may render capillary trapping thermodynamically unstable. Gravity induces a vertical chemical potential gradient that leads to the upwards diffusion of CO2. Thus, bubbles at shallower depths grow at the expense of bubbles in deeper strata, leading to the formation of an overriding gas cap. We first develop a pore-scale model for two bubbles trapped within adjacent pores and then upscale it to obtain a one-dimensional continuum model. We use the latter to predict the macroscopic evolution of a trapped bubble population. Factors controlling the ripening process are isolated to assist in selecting CO2 storage sites. Gravity-induced ripening may also play a role in geologic fluid emplacement and migration over millions of years. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000501192500001 |
WOS关键词 | CARBON-DIOXIDE ; CO2 ; PRESSURE ; DIFFUSION ; STORAGE ; WATER ; DISPERSION ; TRANSPORT ; MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225158 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.MIT, Dept Civil & Environm Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA; 2.Stanford Univ, Dept Energy Resource Engn, Stanford, CA 94305 USA; 3.Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 4.Univ Manchester, Sch Mech Aerosp & Civil Engn, Manchester, Lancs, England |
推荐引用方式 GB/T 7714 | Xu, Ke,Mehmani, Yashar,Shang, Luoran,et al. Gravity-Induced Bubble Ripening in Porous Media and Its Impact on Capillary Trapping Stability[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(23):13804-13813. |
APA | Xu, Ke,Mehmani, Yashar,Shang, Luoran,&Xiong, Qingrong.(2019).Gravity-Induced Bubble Ripening in Porous Media and Its Impact on Capillary Trapping Stability.GEOPHYSICAL RESEARCH LETTERS,46(23),13804-13813. |
MLA | Xu, Ke,et al."Gravity-Induced Bubble Ripening in Porous Media and Its Impact on Capillary Trapping Stability".GEOPHYSICAL RESEARCH LETTERS 46.23(2019):13804-13813. |
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