The geomechanics of Shenhua carbon dioxide capture and storage (CCS) demonstration project in Ordos Basin, China

	The geomechanics of Shenhua carbon dioxide capture and storage (CCS) demonstration project in Ordos Basin, China
	Li, Xiaochun 1; Li, Qi 1; Bai, Bing 1; Wei, Ning 1; Yuan, Wei 1
刊名	JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
	2016
卷号	8 期号:6 页码:948
关键词	CO2 GEOLOGICAL STORAGE MULTILAYER INJECTION NUMERICAL-SIMULATION MECHANICAL PROCESSES FLOW CAPROCK PERMEABILITY TECHNOLOGY INTEGRITY CAPACITY Mechanical stability Carbon dioxide (CO2) geological storage Injection pressure limit Caprock integrity Coal mining
ISSN号	1674-7755
英文摘要	Carbon dioxide (CO2) capture and storage (CCS) is considered widely as one of promising options for CO2 emissions reduction, especially for those countries with coal-dominant energy mix like China. Injecting and storing a huge volume of CO2 in deep formations are likely to cause a series of geomechanical issues, including ground surface uplift, damage of caprock integrity, and fault reactivation. The Shenhua CCS demonstration project in Ordos Basin, China, is the first and the largest full-chain saline aquifer storage project of CO2 in Asia. The injection started in 2010 and ended in 2015, during which totally 0.3 million tonnes (Mt) CO2 was injected. The project is unique in which CO2 was injected into 18 sandstone formations simultaneously and the overlying coal seams will be mined after the injection stopped in 2015. Hence, intense geomechanical studies and monitoring works have been conducted in recent years, including possible damage resulting from the temperature difference between injected CO2 and formations, injection induced stress and deformation change, potential failure mode and safety factor, interaction between coal mining and CO2 geological storage, determination of injection pressure limit, and surface monitoring by the interferometric synthetic aperture radar (InSAR) technology. In this paper, we first described the background and its geological conditions of the Shenhua CCS demonstration project. Then, we gave an introduction to the coupled thermo-hydro-mechano-chemical (THMC) processes in CO2 geological storage, and mapped the key geomechanical issues into the THMC processes accordingly. Next, we proposed a generalized geomechanical research flowchart for CO2 geological storage projects. After that, we addressed and discussed some typical geomechanical issues, including design of injection pressure limit, CO2 injection induced near-field damage, and interaction between CO2 geological storage and coal mining, in the Shenhua CCS demonstration project. Finally, we concluded some insights to this CCS project. (C) 2016 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B. V.
资助项目	[National Natural Science Foundation of China] ; [Shenhua Group] ; [National Department Public Benefit Research Foundation of MLR, China]
语种	英语
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/26410]
专题	中科院武汉岩土力学所
作者单位	1.中国科学院 2.Shijiazhuang Railway University, Sch Civil Engn, Shijiazhuang 050043, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiaochun,Li, Qi,Bai, Bing,et al. The geomechanics of Shenhua carbon dioxide capture and storage (CCS) demonstration project in Ordos Basin, China[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2016,8(6):948.
APA	Li, Xiaochun,Li, Qi,Bai, Bing,Wei, Ning,&Yuan, Wei.(2016).The geomechanics of Shenhua carbon dioxide capture and storage (CCS) demonstration project in Ordos Basin, China.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,8(6),948.
MLA	Li, Xiaochun,et al."The geomechanics of Shenhua carbon dioxide capture and storage (CCS) demonstration project in Ordos Basin, China".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 8.6(2016):948.