An exergy-based energy efficiency analysis on gas production from gas hydrates reservoir by brine stimulation combined depressurization method

doi:10.1016/j.energy.2021.120960

GIEC OpenIR

	An exergy-based energy efficiency analysis on gas production from gas hydrates reservoir by brine stimulation combined depressurization method
	Wang, Xiao-Hui 1,2,3; Chen, Yun 1; Li, Xing-Xun 1; Xu, Qiang 1; Kan, Jing-Yu 1; Sun, Chang-Yu 1; Chen, Guang-Jin 1
	2021-09-15
发表期刊	ENERGY
ISSN	0360-5442
卷号	231 页码:8
通讯作者	Wang, Xiao-Hui(xh.wang@cup.edu.cn) ; Chen, Guang-Jin(gjchen@cup.edu.cn)
摘要	Before performing commercial scale production of natural gas hydrates (NGHs), it is inevitable to estimate the productivity, production period, optimal operation parameters, and further evaluate the technical and economic feasibilities of NGHs field production. The dissociation of gas hydrates is an endothermic process. This needs to compensate additional energy, such as chemical energy, geothermal energy and electricity, etc., in order to keep high dissociation rate. Exergy is a basic parameter that used for various energy systems as a potential tool for design, analysis and optimization. This work provided an exergy analysis method to evaluate the economic efficiency of NGHs exploitation process by brine stimulation combined depressurization method. The input data including cumulative volume of gas production, mass of water production and gas-to-water ratio was obtained by the numerical simulation of TOUGH & thorn; HYDRATE. Through the exergy analysis, the total productivity and production period could be determined. These have rarely been reported. The influences of operation parameters, such as well spacing, injection temperature and injection rate of brine on net exergy production were investigated for guiding the set of optimal operating conditions. Since the cost may be one of the biggest challenges for NGHs production, this work suggests making full use of all kinds low-level energy sources to improve energy efficiency, such as brine with high concentration produced by desalination, tidal energy, wind energy, etc. (c) 2021 Elsevier Ltd. All rights reserved.
关键词	Natural gas hydrates Production Energy efficiency Exergy analysis Brine stimulation combined depressurization
DOI	10.1016/j.energy.2021.120960
关键词[WOS]	PRODUCTION RESEARCH WELL ; STRATIGRAPHIC TEST WELL ; THERMAL-STIMULATION ; METHANE HYDRATE ; NORTHWEST-TERRITORIES ; DISSOCIATION ; SEDIMENTS ; RECOVERY ; MALLIK ; SIMULATION
收录类别	SCI
语种	英语
资助项目	Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences[Y807kj1001] ; National Natural Science Foundation of China[21908243] ; National Natural Science Foundation of China[U20B6005] ; National Natural Science Foundation of China[21636009] ; National Natural Science Foundation of China[21808238] ; National Natural Science Foundation of China[U19B2005] ; Science Foundation of China University of Petroleum, Beijing[2462018YJRC010]
WOS研究方向	Thermodynamics ; Energy & Fuels
项目资助者	Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Science Foundation of China University of Petroleum, Beijing
WOS类目	Thermodynamics ; Energy & Fuels
WOS记录号	WOS:000670307700001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/33422
专题	中国科学院广州能源研究所
通讯作者	Wang, Xiao-Hui; Chen, Guang-Jin
作者单位	1.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China 2.CNOOC, State Key Lab Nat Gas Hydrates, Beijing 100010, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Wang, Xiao-Hui,Chen, Yun,Li, Xing-Xun,et al. An exergy-based energy efficiency analysis on gas production from gas hydrates reservoir by brine stimulation combined depressurization method[J]. ENERGY,2021,231:8.
APA	Wang, Xiao-Hui.,Chen, Yun.,Li, Xing-Xun.,Xu, Qiang.,Kan, Jing-Yu.,...&Chen, Guang-Jin.(2021).An exergy-based energy efficiency analysis on gas production from gas hydrates reservoir by brine stimulation combined depressurization method.ENERGY,231,8.
MLA	Wang, Xiao-Hui,et al."An exergy-based energy efficiency analysis on gas production from gas hydrates reservoir by brine stimulation combined depressurization method".ENERGY 231(2021):8.