Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes

doi:10.1016/j.apenergy.2021.117852

GIEC OpenIR

	Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes
	Li, Xiao-Yan 1,3,4,5,6; Feng, Jing-Chun 2; Li, Xiao-Sen1,3,4,5 ; Wang, Yi 1,3,4,5; Hu, Heng-Qi 1,3,4,7
	2022
发表期刊	APPLIED ENERGY
ISSN	0306-2619
卷号	305 页码:11
通讯作者	Li, Xiao-Sen(lixs@ms.giec.ac.cn) ; Wang, Yi(wangyi@ms.giec.ac.cn)
摘要	Gas hydrate found in nature is mainly existed in deposit, such as marine deposit and permafrost. The thermophysical properties of the deposit are largely influenced by the formation features of gas hydrate, thereby affecting the hydrate production. In this manuscript, the experiments of formation and decomposition behavior of gas hydrate in the deposit with different grain sizes (40-60 mesh, 80-120 mesh, 325-400 mesh) and different thermal conductivities (0.926 W/m.K, 28.8 W/m.K, 41.9 W/m.K) were conducted in the small cubic hydrate simulator, and the coupling effect of the heat and mass transport on the hydrate formation and dissociation were researched. It was concluded that the mass transport rate in the deposit dominated the hydrate formation. The formation of gas hydrate was initial at the contact surfacing of gas-water and grew gradually in the gas-rich region, and the hydrate formation amount in the water-rich region was little. In the deposit with the grain size of 80-120 mesh and 325-400 mesh, there was no obvious induction time for the hydrate formation that occurred during gas injection. Be different from the hydrate formation, the heat transfer rate of the deposit restricted chiefly methane hydrate dissociation. With the raise of grain size and thermal conductivity of deposit, methane hydrate decomposition rate enhanced. It's also found that the formed hydrate acted as cementation in porous medium with the grain size of 80-120 mesh and 325-400 mesh. The heat transfer rate of the deposit would significantly decrease when most of the cementation between the porous medium was disappeared as a result of hydrate dissociation, and the hydrate saturation in sediments at this time was defined as the critical hydrate saturation (50-80% of the initial hydrate saturation). The critical hydrate saturation is meaningful for gas hydrate resource prospecting and the risk assessment of gas hydrate production in actual fields.
关键词	Methane hydrate Grain size Thermal conductivity Formation and decomposition Cementation Critical hydrate saturation
DOI	10.1016/j.apenergy.2021.117852
关键词[WOS]	GAS-PRODUCTION ; HEAT-TRANSFER ; PILOT-SCALE ; SILICA SAND ; DISSOCIATION ; DEPRESSURIZATION ; PERMEABILITY ; RECOVERY ; MASS
收录类别	SCI
语种	英语
资助项目	Key Program of National Natural Science Foundation of China[51736009] ; National Natural Science Foundation of China[52122602] ; National Natural Science Foundation of China[42022046] ; National Natural Science Foundation of China[51806251] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2020D044] ; Youth Innovation Promotion Association CAS[2018382] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YJKYYQ20200061] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2019B030302004] ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province[2020B0301030003]
WOS研究方向	Energy & Fuels ; Engineering
项目资助者	Key Program of National Natural Science Foundation of China ; 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 ; Youth Innovation Promotion Association CAS ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; Fundamental Research & Applied Fundamental Research Major Project of Guangdong Province
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000701873700002
出版者	ELSEVIER SCI LTD
引用统计	被引频次：32[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/344007/34796
专题	中国科学院广州能源研究所
通讯作者	Li, Xiao-Sen; Wang, Yi
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Guangdong Univ Technol, Inst Environm & Ecol Engn, Guangzhou 510006, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 7.Univ Sci & Technol China, Hefei 230000, 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	Li, Xiao-Yan,Feng, Jing-Chun,Li, Xiao-Sen,et al. Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes[J]. APPLIED ENERGY,2022,305:11.
APA	Li, Xiao-Yan,Feng, Jing-Chun,Li, Xiao-Sen,Wang, Yi,&Hu, Heng-Qi.(2022).Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes.APPLIED ENERGY,305,11.
MLA	Li, Xiao-Yan,et al."Experimental study of methane hydrate formation and decomposition in the porous medium with different thermal conductivities and grain sizes".APPLIED ENERGY 305(2022):11.