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Hydrate dissociation induced by depressurization in conjunction with warm brine stimulation in cubic hydrate simulator with silica sand
Feng, Jing-Chun1,2,3,4; Wang, Yi1,2,3; Li, Xiao-Sen1,2,3
2016-07-15
发表期刊APPLIED ENERGY
卷号174页码:181-191
摘要To study the effect of salt concentration of brine injection on hydrate dissociation, hydrate dissociation experiments induced by depressurization in conjunction with warm brine stimulation have been carried out in a Cubic Hydrate Simulator (CHS). The dual horizontal wells were set as the well configuration. The results indicate that the salinity in the reservoir decreases continuously during the depressurizing stage under the mixture of fresh water from hydrate dissociation. However, the salinity increases overtime during the constant-pressure stage (the injection stage) by the mass transfer with the injected brine. The gas production rate and heat-transfer rate for pure water injection are lower than those for brine injection. In addition, raising the injected salinity can enhance the rates of heat transfer and gas production when the salinity is lower than 10.0%. However, the promotion effect of brine injection on hydrate dissociation is limited when the injected salinity is beyond 10.0%. This is because the specific heat of the brine declines with the increase of the salinity, which causes the decrease of heat injection rate. The water production rate equals to the water injection rate in the process of brine injection. The energy analysis and the evaluation of energy ratio indicate that the optimal injected salinity in this work is 10.0%. (C) 2016 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Hydrate Depressurization Thermal Stimulation Warm Brine Brine Concentration
WOS标题词Science & Technology ; Technology
DOI10.1016/j.apenergy.2016.04.090
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]SOUTH CHINA SEA ; DUAL HORIZONTAL WELLS ; METHANE-HYDRATE ; GAS-PRODUCTION ; THERMAL-STIMULATION ; HEAT-TRANSFER ; POROUS-MEDIA ; PRODUCTION BEHAVIORS ; RESERVOIR ; INJECTION
收录类别SCI
语种英语
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000377728700015
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/11749
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.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100083, Peoples R China
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Feng, Jing-Chun,Wang, Yi,Li, Xiao-Sen. Hydrate dissociation induced by depressurization in conjunction with warm brine stimulation in cubic hydrate simulator with silica sand[J]. APPLIED ENERGY,2016,174:181-191.
APA Feng, Jing-Chun,Wang, Yi,&Li, Xiao-Sen.(2016).Hydrate dissociation induced by depressurization in conjunction with warm brine stimulation in cubic hydrate simulator with silica sand.APPLIED ENERGY,174,181-191.
MLA Feng, Jing-Chun,et al."Hydrate dissociation induced by depressurization in conjunction with warm brine stimulation in cubic hydrate simulator with silica sand".APPLIED ENERGY 174(2016):181-191.
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