Effect of modeling factors on the dissolution-diffusion-convection;process during CO2 geological storage in deep saline formations

doi:10.1007/s11707-013-0359-x

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	Effect of modeling factors on the dissolution-diffusion-convection;process during CO2 geological storage in deep saline formations
	Zhang, Wei
刊名	FRONTIERS OF EARTH SCIENCE
	2013
卷号	7 期号:2 页码:238-256
关键词	climate change carbon dioxide geologic sequestration density-driven convection reactive transport modeling grid resolution
ISSN号	2095-0195
DOI	10.1007/s11707-013-0359-x
英文摘要	It is well known that during CO2 geological storage, density-driven convective activity can significantly accelerate the dissolution of injected CO2 into water. This action could limit the escape of supercritical CO2 from the storage formation through vertical pathways such as fractures, faults and abandoned wells, consequently increasing permanence and security of storage. First, we investigated the effect of numerical perturbation caused by time and grid resolution and the convergence criteria on the dissolution-diffusion-convection (DDC) process. Then, using the model with appropriate spatial and temporal resolution, some uncertainty parameters investigated in our previous paper such as initial gas saturation and model boundaries, and other factors such as relative liquid permeability and porosity modification were used to examine their effects on the DDC process. Finally, we compared the effect of 2D and 3D models on the simulation of the DDC process. The above modeling results should contribute to clear understanding and accurate simulation of the DDC process, especially the onset of convective activity, and the CO2 dissolution rate during the convection-dominated stage.
学科主题	环境地质学
WOS关键词	REACTIVE GEOCHEMICAL TRANSPORT ; DRIVEN NATURAL-CONVECTION ; LONG-TERM ; STORAGE ; CARBON-DIOXIDE ; POROUS-MEDIA ; BOUNDARY-CONDITIONS ; GREENHOUSE ; GASES ; MASS-TRANSFER ; NORTH-SEA ; SIMULATION
WOS研究方向	Geology
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000318504900012
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39969]
专题	中国地质调查局地学文献中心
作者单位	China Geol Survey, Natl Geol Lib China, Geosci Documentat Ctr, Beijing 100083, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, Wei. Effect of modeling factors on the dissolution-diffusion-convection;process during CO2 geological storage in deep saline formations[J]. FRONTIERS OF EARTH SCIENCE,2013,7(2):238-256.
APA	Zhang, Wei.(2013).Effect of modeling factors on the dissolution-diffusion-convection;process during CO2 geological storage in deep saline formations.FRONTIERS OF EARTH SCIENCE,7(2),238-256.
MLA	Zhang, Wei."Effect of modeling factors on the dissolution-diffusion-convection;process during CO2 geological storage in deep saline formations".FRONTIERS OF EARTH SCIENCE 7.2(2013):238-256.