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Experimental study on sediment deformation during methane hydrate decomposition in sandy and silty clay sediments with a novel experimental apparatus
Han, Han1,2,3,6; Wang, Yi2,3,4; Li, Xiao-Sen2,3,4; Yu, Jian-Xing1,6; Feng, Jing-Chun2,3,4,5; Zhang, Yu2,3,4
2016-10-15
发表期刊FUEL
卷号182页码:446-453
摘要Extraction of methane from hydrate-bearing sediment (HBS) has aroused increasing interest around the world. However, the decomposition of gas hydrate may cause significant sediment deformation, which is one of the main obstructions for the hydrate exploitation. To investigate the decomposition behaviors of methane hydrate in different sediments and study the sediment deformation during hydrate decomposition, two contrast experiments were carried out in a novel three-dimensional (3-D) high-pressure reactor with a quick-opening component. In this study, synthetic sandy sediment and natural silty clay sediment sampled from the Shenhu Area, South China Sea were used as the HBS. For hydrate in sandy sediment, the pressure-temperature (P-T) relationship is consistent with that of bulk hydrate. However, in silty clay sediment, the hydrate decomposition conditions shift into a higher pressure region than that in sandy sediment, which is mainly due to the small pore particle size and the presence of salinity. In addition, hydrate decomposition conditions in silty clay sediment also vary at different positions in the reactor because of the effects of salinity, organics, minerals and the uneven distribution of the pores and pore particles. Hence, it is considered that there is a variable equilibrium for the methane hydrate deposits in silty clay sediment. Further, Radial Shrinkage Effect of Hydrate Decomposition (RASHEHD) was observed in both experiments. It is possibly a combined consequence of gas seepage and the cementation effect of hydrate. (C) 2016 Elsevier Ltd. All rights reserved.
文章类型Article
关键词Methane Hydrate Depressurization Sandy Sediment Silty Clay Sediment Sediment Deformation
WOS标题词Science & Technology ; Technology
DOI10.1016/j.fue1.2016.05.112
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]SOUTH CHINA SEA ; GAS-PRODUCTION ; BEARING SEDIMENTS ; POROUS-MEDIA ; PRODUCTION BEHAVIORS ; THERMAL-STIMULATION ; SLOPE INSTABILITY ; CARBON-DIOXIDE ; DISSOCIATION ; DEPRESSURIZATION
收录类别SCI
语种英语
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000379102600048
引用统计
被引频次:3[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/344007/11781
专题中国科学院广州能源研究所
作者单位1.Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
4.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100083, Peoples R China
6.Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China
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Han, Han,Wang, Yi,Li, Xiao-Sen,et al. Experimental study on sediment deformation during methane hydrate decomposition in sandy and silty clay sediments with a novel experimental apparatus[J]. FUEL,2016,182:446-453.
APA Han, Han,Wang, Yi,Li, Xiao-Sen,Yu, Jian-Xing,Feng, Jing-Chun,&Zhang, Yu.(2016).Experimental study on sediment deformation during methane hydrate decomposition in sandy and silty clay sediments with a novel experimental apparatus.FUEL,182,446-453.
MLA Han, Han,et al."Experimental study on sediment deformation during methane hydrate decomposition in sandy and silty clay sediments with a novel experimental apparatus".FUEL 182(2016):446-453.
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