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Gas permeability and shape factor of natural sediments in the South China Sea

文献类型：期刊论文

作者Shen, Peng-Fei1,2,3,4; Li, Xiao-Sen1,2,3,4; Li, Gang3,4
刊名JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
出版日期2020-11-01
卷号83页码:11
ISSN号1875-5100
关键词Gas permeability Natural sediments Shape factor Porosity Confining pressure South China Sea
DOI10.1016/j.jngse.2020.103626
通讯作者Li, Xiao-Sen(lixs@ms.giec.ac.cn) ; Li, Gang(ligang@ms.giec.ac.cn)
英文摘要The permeability measurement of marine natural sediments is helpful to evaluate the characteristics of seawater immersion in the sediment layer and the difficulty of upward escape of gas below the sediments. In this work, the stress on the natural sediments in the Shenhu Area of the South China Sea with different buried depths was simulated by confining pressure. The effective gas permeability of natural sediments with different initial porosities during confining pressure loading and unloading was investigated. Experimental results indicated that the gas permeability was very sensitive to particle size distribution, confining pressure and initial porosity of the sediments. The gas permeability of sediments decreased with the increase of confining pressure and the decrease of porosity. The isoline of porosity related to gas permeability was obtained, and this isoline could predict the gas permeability of natural sediments in the South China Sea under different porosities and buried depths. The particle size term in the Kozeny-Carman equation was modified by particle size correction factor N, and the uneven particle size distributions of four natural sediments could be eliminated when N was about 2.44. The specific surface areas of four natural sediments increased with the increase of buried depth. Finally, a new model for the calculation of shape factor was proposed, and this model showed practical performance in predicting the shape factors of natural sediments.
WOS关键词BEARING POROUS-MEDIA ; METHANE HYDRATE ; RELATIVE PERMEABILITY ; MODEL ; SIZE ; FLOW
资助项目Key Program of National Natural Science Foundation of China[51736009] ; National Natural Science Foundation of China[51676196] ; National Natural Science Foundation of China[51976228] ; Guangdong Special Support Program[2019BT02L278] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSWJSC033] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDB-SSW-JSC028] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YZ201619] ; National Key R&D Program of China[2017YFC0307306] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2020D044]
WOS研究方向Energy & Fuels ; Engineering
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000581887900088
资助机构Key Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Special Support Program ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; National Key R&D Program of China ; Special Project for Marine Economy Development of Guangdong Province
源URL[http://ir.giec.ac.cn/handle/344007/34883]  
专题中国科学院广州能源研究所
通讯作者Li, Xiao-Sen; Li, Gang
作者单位1.Chongqing Univ, Sch Resources & Safety Engn, Chongqing 400044, Peoples R China
2.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China
3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 Shen, Peng-Fei,Li, Xiao-Sen,Li, Gang. Gas permeability and shape factor of natural sediments in the South China Sea[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2020,83:11.
APA Shen, Peng-Fei,Li, Xiao-Sen,&Li, Gang.(2020).Gas permeability and shape factor of natural sediments in the South China Sea.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,83,11.
MLA Shen, Peng-Fei,et al."Gas permeability and shape factor of natural sediments in the South China Sea".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 83(2020):11.

入库方式： OAI收割

来源：广州能源研究所

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