Experimental and Modeling Study of Kinetics for Hydrate Decomposition Induced by Depressurization in a Porous Medium

doi:10.3389/fenrg.2021.779635

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	Experimental and Modeling Study of Kinetics for Hydrate Decomposition Induced by Depressurization in a Porous Medium
	Ruan, Xuke 1,2; Xu, Chun-Gang 1,2; Yan, Ke-Feng1,2 ; Li, Xiao-Sen1,2
	2021-12-20
发表期刊	FRONTIERS IN ENERGY RESEARCH
ISSN	2296-598X
卷号	9 页码:16
通讯作者	Li, Xiao-Sen(lixs@ms.giec.ac.cn)
摘要	The hydrate decomposition kinetics is a key factor for the gas production from hydrate-saturated porous media. Meanwhile, it is also related to other factors. Among them, the permeability and hydrate dissociation surface area on hydrate dissociation kinetics have been studied experimentally and numerically in this work. First, the permeability to water was experimentally determined at different hydrate saturations (0%, 10%, 17%, 21%, 34%, 40.5%, and 48.75%) in hydrate-bearing porous media. By the comparison of permeability results from the experimental measurements and theoretical calculations with the empirical permeability models, it was found that, for the lower hydrate saturations (less than 40%), the experimental results of water permeability are closer to the predicted values of the grain-coating permeability model, whereas, for the hydrate saturation above 40%, the tendencies of hydrate accumulation in porous media are quite consistent with the pore-filling hydrate habits. A developed two-dimensional core-scale numerical code, which incorporates the models for permeability and hydrate dissociation surface area along with the hydrate accumulation habits in porous media, was used to investigate the kinetics of hydrate dissociation by depressurization, and a "shrinking-core" hydrate dissociation driven by the radial heat transfer was found in the numerical simulations of hydrate dissociation induced by depressurization in core-scale porous media. The numerical results indicate that the gas production from hydrates in porous media has a strong dependence on the permeability and hydrate dissociation surface area. Meanwhile, the simulation shows that the controlling factor for the dissociation kinetics of hydrate switches from permeability to hydrate dissociation surface area depending on the hydrate saturation and hydrate accumulation habits in porous media.
关键词	gas hydrate decomposition kinetics surface area permeability hydrate saturation hydrate accumulation habit numerical simulation depressurization
DOI	10.3389/fenrg.2021.779635
关键词[WOS]	GAS-PRODUCTION BEHAVIOR ; METHANE HYDRATE ; CARBON-DIOXIDE ; NUMERICAL-SIMULATION ; SURFACE-AREA ; COMBINING DEPRESSURIZATION ; INDUCED DISSOCIATION ; BEARING SEDIMENTS ; PHASE-EQUILIBRIA ; MACKENZIE DELTA
收录类别	SCI
语种	英语
资助项目	Guangdong Major project of Basic and Applied Basic Research[2020B0301030003] ; Key Program of National Natural Science Foundation of China[51736009] ; Guangdong Special Support Program-Local Innovation and Entrepreneurship Team Project[2019BT02L278] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YZ201619] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSW-JSC033] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDB-SSW-JSC028] ; Program of CAS Key Laboratory of Gas Hydrate[E1290201] ; Science and Technology Program of Guangzhou[202102080159]
WOS研究方向	Energy & Fuels
项目资助者	Guangdong Major project of Basic and Applied Basic Research ; Key Program of National Natural Science Foundation of China ; Guangdong Special Support Program-Local Innovation and Entrepreneurship Team Project ; Special Project for Marine Economy Development of Guangdong Province ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences ; Program of CAS Key Laboratory of Gas Hydrate ; Science and Technology Program of Guangzhou
WOS类目	Energy & Fuels
WOS记录号	WOS:000738878900001
出版者	FRONTIERS MEDIA SA
引用统计	被引频次：1[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/344007/35621
专题	中国科学院广州能源研究所
通讯作者	Li, Xiao-Sen
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou, 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	Ruan, Xuke,Xu, Chun-Gang,Yan, Ke-Feng,et al. Experimental and Modeling Study of Kinetics for Hydrate Decomposition Induced by Depressurization in a Porous Medium[J]. FRONTIERS IN ENERGY RESEARCH,2021,9:16.
APA	Ruan, Xuke,Xu, Chun-Gang,Yan, Ke-Feng,&Li, Xiao-Sen.(2021).Experimental and Modeling Study of Kinetics for Hydrate Decomposition Induced by Depressurization in a Porous Medium.FRONTIERS IN ENERGY RESEARCH,9,16.
MLA	Ruan, Xuke,et al."Experimental and Modeling Study of Kinetics for Hydrate Decomposition Induced by Depressurization in a Porous Medium".FRONTIERS IN ENERGY RESEARCH 9(2021):16.