Tightness Analysis of Underground Natural Gas and Oil Storage Caverns With Limit Pillar Widths in Bedded Rock Salt

doi:10.1109/ACCESS.2020.2966006

	Tightness Analysis of Underground Natural Gas and Oil Storage Caverns With Limit Pillar Widths in Bedded Rock Salt
	Zhang, Nan 2; Shi, Xilin 1; Zhang, Yun 2; Shan, Pengfei 2
刊名	IEEE ACCESS
	2020
卷号	8 页码:12130-12145
关键词	Bedded rock salt underground gas storage strategic petroleum reserve tightness seepage
ISSN号	2169-3536
DOI	10.1109/ACCESS.2020.2966006
英文摘要	To fully utilize the abandoned salt cavern resources and to increase the total amount of the fossil energy reserve of China, reconstructing some of these salt caverns for underground gas storage (UGS) or strategic petroleum reserve (SPR) would be an effective method. The salt resources in China mainly are bedded salt, which brings great challenges for the cavern construction and safety evaluation. In this paper, the investigations are presented to evaluate the tightness of the UGS and SPR salt cavern facilities, located in the bedded rock of Jintan, China. Microcosmic analysis, and permeability and porosity tests of the surrounding rock are carried out to determine their properties, which provide the basic data for the tightness assessment. A 3-D numerical model is developed based on the test results and the geological features of the target formation. The numerical simulation results show that the seepage velocity, seepage range and loss rate of leakage of the SPR salt caverns are much smaller than those of UGS salt caverns. The cavern & x2019;s pillar width with a pillar to diameter ratio (P/D) of 1.5 can satisfy the tightness requirement of SPR salt caverns, but it cannot meet the requirement of UGS caverns. This indicates that some existing abandoned salt caverns in Jintan which are unsuitable for UGS due to their small pillar width have the potential to be rebuilt for SPR. This would help to increase the storage capacity of crude oil in China. The results can also provide a reference for the implementation of similar projects in other bedded salt districts.
资助项目	National Science Foundation of China[51774266] ; National Science Foundation of China[41502296] ; National Science Foundation of China[51404241] ; National Natural Science Foundation of China Innovative Research Team[51621006] ; Youth Innovation Promotion Association CAS[2016296] ; Natural Science Foundation for Innovation Group of Hubei Province, China[2016CFA014]
WOS研究方向	Computer Science ; Engineering ; Telecommunications
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000525409100024
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/23968]
专题	中科院武汉岩土力学所
通讯作者	Zhang, Nan; Shi, Xilin
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Xian Univ Sci & Technol, Coll Energy Engn, Key Lab Western Mines & Hazard Prevent, Minist Educ China, Xian 710054, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Nan,Shi, Xilin,Zhang, Yun,et al. Tightness Analysis of Underground Natural Gas and Oil Storage Caverns With Limit Pillar Widths in Bedded Rock Salt[J]. IEEE ACCESS,2020,8:12130-12145.
APA	Zhang, Nan,Shi, Xilin,Zhang, Yun,&Shan, Pengfei.(2020).Tightness Analysis of Underground Natural Gas and Oil Storage Caverns With Limit Pillar Widths in Bedded Rock Salt.IEEE ACCESS,8,12130-12145.
MLA	Zhang, Nan,et al."Tightness Analysis of Underground Natural Gas and Oil Storage Caverns With Limit Pillar Widths in Bedded Rock Salt".IEEE ACCESS 8(2020):12130-12145.