Analysis of CO2 Migration during Nanofluid-Based Supercritical CO2 Geological Storage in Saline Aquifers

doi:10.4209/aaqr.2013.09.0292

	Analysis of CO2 Migration during Nanofluid-Based Supercritical CO2 Geological Storage in Saline Aquifers
	Yang, Duoxing 1; Wang, Shu 2; Zhang, Yi 3
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2014-08-01
卷号	14 期号:5 页码:1411-1417
关键词	Nanofluids CO2 geological storage Saline aquifer Heterogeneity Nanoparticles
ISSN号	1680-8584
DOI	10.4209/aaqr.2013.09.0292
文献子类	Article
英文摘要	Carbon dioxide (CO2) geological storage in deep saline aquifers is a key measure to mitigate global warming. However, it still faces a variety of technical challenges such as enhancing CO2 effective storage capacities. In this paper, a preliminary model is developed to simulate CO2 migration during nanofluid-based supercritical CO2 geological storage in saline aquifers. The main mechanisms, including Brownian motion, thermophoresis, thermal energy transfer, and interfacial tension, are included in the proposed conceptual model. Based on the high-resolution space-time conservation element and solution element (CE/SE) method, the model is used to simulate CO2 migration and distribution in the in-situ heterogeneous saline aquifer. It can be inferred that the involvement of nanoparticles decreases shear stresses opposing flow and enhances CO2 mobility in the flow boundary layer. In addition, nanoparticles increase shear stresses outside the boundary layer and retard CO2 velocity. These competitive mechanisms result in homogeneous migration of CO2 in the saline formation. One preliminary suggestion is that nanofluids enhance homogeneous CO2 transport in the reservoir and mitigate the negative effects of stratigraphic heterogeneity on migration and accumulation of the CO2 plume. CO2 effective storage capacity may be greatly elevated by means of nanofluid-based CO2 geological sequestration. The concept of nanofluid-based CO2 geological storage may be potentially conducive to large-scale commercial CO2 geological storage and useful for exploration of geothermal resources in deep-seated hot rocks. The effects of CO2 solubility and geochemical reactions on nanofluid flows may be considered in a future study.
WOS关键词	NUMERICAL-SIMULATION ; HEAT-TRANSFER ; SEQUESTRATION ; FLOWS ; CHINA
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	TAIWAN ASSOC AEROSOL RES-TAAR
WOS记录号	WOS:000336731200009
资助机构	National Nature Scientific Foundation of China(41340027) ; National Nature Scientific Foundation of China(41340027) ; National Basic Research Program of China(2011CB707300) ; National Basic Research Program of China(2011CB707300) ; National Nature Scientific Foundation of China(41340027) ; National Nature Scientific Foundation of China(41340027) ; National Basic Research Program of China(2011CB707300) ; National Basic Research Program of China(2011CB707300) ; National Nature Scientific Foundation of China(41340027) ; National Nature Scientific Foundation of China(41340027) ; National Basic Research Program of China(2011CB707300) ; National Basic Research Program of China(2011CB707300) ; National Nature Scientific Foundation of China(41340027) ; National Nature Scientific Foundation of China(41340027) ; National Basic Research Program of China(2011CB707300) ; National Basic Research Program of China(2011CB707300)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/85145]
专题	中国科学院地质与地球物理研究所
通讯作者	Yang, Duoxing
作者单位	1.Chinese Earthquake Adm, Inst Crustal Dynam, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Res Inst Innovat Technol Earth, Kyoto 6190292, Japan
推荐引用方式 GB/T 7714	Yang, Duoxing,Wang, Shu,Zhang, Yi. Analysis of CO2 Migration during Nanofluid-Based Supercritical CO2 Geological Storage in Saline Aquifers[J]. AEROSOL AND AIR QUALITY RESEARCH,2014,14(5):1411-1417.
APA	Yang, Duoxing,Wang, Shu,&Zhang, Yi.(2014).Analysis of CO2 Migration during Nanofluid-Based Supercritical CO2 Geological Storage in Saline Aquifers.AEROSOL AND AIR QUALITY RESEARCH,14(5),1411-1417.
MLA	Yang, Duoxing,et al."Analysis of CO2 Migration during Nanofluid-Based Supercritical CO2 Geological Storage in Saline Aquifers".AEROSOL AND AIR QUALITY RESEARCH 14.5(2014):1411-1417.