Water transfer characteristics in the vertical direction during methane hydrate formation and dissociation processes inside non-saturated media

查看全文 作　　者：Peng Zhang Qingbai Wu Guanli Jiang Jing Zhan Yingmei [1]Wang

机构地区：[1]State Key Laboratory, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China

出　　处：《Journal of Natural Gas Chemistry》索引2010年第19卷第2期,共7页

基　　金：supported by the CAS Knowledge Innovation Key Project (Grant No.KZCX2-YW-330);the National Science Fund Fostering Talents in Basic Research to Glaciology and Geocryology (Grant No.J0630966) 摘　　要：In order to study water transfer characteristics inside non-saturated media during methane hydrate formation and dissociation processes,water changes on the top,middle and bottom locations of experimental media during the reaction processes were continuously followed with a novel apparatus with three pF-meter sensors.Coarse sand,fine sand and loess were chosen as experimental media.It was experimentally observed that methane hydrate was easier formed inside coarse sand and fine sand than inside loess.Methane hydrate formation configuration and water transfer characteristics during methane hydrate formation processes were very different among the different non-saturated media,which were important for understanding methane hydrate formation and dissociation mechanism inside sediments in nature. 关键词：甲烷水合物分解过程垂直方向媒体特征非饱和输水实验观察

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Water transfer characteristics in the vertical direction during methane hydrate formation and dissociation processes inside non-saturated media

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