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Analytic modeling and large-scale experimental study of mass and heat transfer during hydrate dissociation in sediment with different dissociation methods
Wang, Yi1,2; Feng, Jing-Chun1,2,3; Li, Xiao-Sen1,2; Zhang, Yu1,2; Li, Gang1,2
2015-10-01
发表期刊ENERGY
卷号90
摘要An analytic model of the mass and heat transfers during hydrate dissociation in porous media by depressurization, thermal stimulation, and depressurization in conjunction with thermal stimulation without any empirical correlation is established in this work. Meanwhile, the PHS (Pilot-Scale Hydrate Simulator), a three-dimensional 117.8 L pressure vessel, is used for the investigation into the characteristics of the heat transfers and gas production behaviors during hydrate dissociation with the above dissociation methods. The model is solved analytically, and the predicted results are in good agreement with the experimental data. The results indicate that the sensible heat in porous media is firstly consumed for the hydrate dissociation, and then the heat transferred from the boundaries is employed for dissociating the hydrate in the reservoir by depressurization. The maximum deviations of the predicted gas production and the predicted temperatures with the model are 7.4% and 0.36%, respectively. With the thermal stimulation method, the maximum deviation of the predicted moles of the dissociated hydrate is 7.6%. There are two moving boundaries of the hydrate dissociation in the hydrate reservoir by depressurization in conjunction with heat stimulation. A synergistic effect of depressurization and heat stimulation on hydrate dissociation enhances the hydrate dissociation rates. (C) 2015 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Hydrate Dissociation Heat And Mass Transfer Analytical Solution Depressurization Thermal Stimulation
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.energy.2015.07.029
研究领域[WOS]Thermodynamics ; Energy & Fuels
关键词[WOS]EQUATION-OF-STATE ; METHANE HYDRATE ; POROUS-MEDIA ; GAS-PRODUCTION ; PRODUCTION BEHAVIOR ; CARBON-DIOXIDE ; THERMAL HUFF ; 5-SPOT WELL ; PUFF METHOD ; DEPRESSURIZATION
收录类别SCI
语种英语
WOS类目Thermodynamics ; Energy & Fuels
WOS记录号WOS:000364245300067
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10897
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100083, Peoples R China
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GB/T 7714
Wang, Yi,Feng, Jing-Chun,Li, Xiao-Sen,et al. Analytic modeling and large-scale experimental study of mass and heat transfer during hydrate dissociation in sediment with different dissociation methods[J]. ENERGY,2015,90.
APA Wang, Yi,Feng, Jing-Chun,Li, Xiao-Sen,Zhang, Yu,&Li, Gang.(2015).Analytic modeling and large-scale experimental study of mass and heat transfer during hydrate dissociation in sediment with different dissociation methods.ENERGY,90.
MLA Wang, Yi,et al."Analytic modeling and large-scale experimental study of mass and heat transfer during hydrate dissociation in sediment with different dissociation methods".ENERGY 90(2015).
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