Experimental identification of CO2-oil-brine-rock interactions: Implications for CO2 sequestration after termination of a CO2-EOR project

doi:10.1016/j.apgeochem.2016.10.018

	Experimental identification of CO2-oil-brine-rock interactions: Implications for CO2 sequestration after termination of a CO2-EOR project
	Yu, Miao 1,2; Liu, Li 2; Yang, Siyu 3; Yu, Zhichao 3; Li, Shi 3; Yang, Yongzhi 3; Shi, Xuefa 1
刊名	APPLIED GEOCHEMISTRY
	2016-12
卷号	75 页码:137-151
关键词	CO2-oil-brine-rock-interaction Permeability Wettability CCUS Songliao basin
ISSN号	0883-2927
DOI	10.1016/j.apgeochem.2016.10.018
英文摘要	Carbon dioxide enhanced oil recovery (CO2-EOR) has been widely applied to the process of carbon capture, utilization, and storage (CCUS). Here, we investigate CO2-oil-water-rock-interactions under reservoir conditions (100 degrees C and 24 MPa) in order to understand the fluid rock interactions following termination of a CO2-EOR project. Our experimental results show that CO2-rich fluid remained the active fluid controlling the dissolution precipitation processes in an oil-undersaturated sandstone reservoir; e.g., the dissolution of feldspar and calcite, and the precipitation of kaolinite as well as solid phases comprising O, Si, Al, Na, C, and Ti. Mineral dissolution rates were reduced in the case that mineral surfaces were coated by oil. Mineral wettability and composition, and oil saturation were the main controls on the exposed surface area of grains, and mineral wettability in particular led to selective dissolution. In addition, the permeability of the reservoir decreased substantially due to the precipitation of kaolinite and solid-phase particles, and due to the clogging of less soluble mineral particles released by the dissolution of K-feldspar and carbonate cement, whereas porosity increased. The results provide insight into potential formation damage resulting from CO2-EOR projects.. (C) 2016 Elsevier Ltd. All rights reserved.
资助项目	National Science Foundation of China[41172091] ; National Science Foundation of China[41372133]
WOS关键词	CARBON-DIOXIDE ; CRUDE-OIL ; NATURAL ANALOG ; DAWSONITE FORMATION ; SUPERCRITICAL CO2 ; AQUIFER DISPOSAL ; NORTHEAST CHINA ; SALINE AQUIFERS ; SONGLIAO BASIN ; STORAGE
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000390084900014
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25807]
专题	自然资源部第一海洋研究所
通讯作者	Liu, Li
作者单位	1.SOA, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Jilin Univ, Coll Earth Sci, 2199 Jianshe St, Changchun 130061, Jilin Province, Peoples R China 3.Res Inst Petr Explorat & Dev, State Key Lab EOR, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Yu, Miao,Liu, Li,Yang, Siyu,et al. Experimental identification of CO2-oil-brine-rock interactions: Implications for CO2 sequestration after termination of a CO2-EOR project[J]. APPLIED GEOCHEMISTRY,2016,75:137-151.
APA	Yu, Miao.,Liu, Li.,Yang, Siyu.,Yu, Zhichao.,Li, Shi.,...&Shi, Xuefa.(2016).Experimental identification of CO2-oil-brine-rock interactions: Implications for CO2 sequestration after termination of a CO2-EOR project.APPLIED GEOCHEMISTRY,75,137-151.
MLA	Yu, Miao,et al."Experimental identification of CO2-oil-brine-rock interactions: Implications for CO2 sequestration after termination of a CO2-EOR project".APPLIED GEOCHEMISTRY 75(2016):137-151.