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论文类型：期刊论文

发表时间：2010-05-01

发表刊物：JOURNAL OF NATURAL GAS CHEMISTRY

收录刊物：SCIE、EI、ISTIC、CSCD

卷号：19

期号：3

页面范围：255-260

ISSN号：1003-9953

关键字：pore network model; hydrate saturation; permeability; porous media

摘要：The permeability in the methane hydrate reservoir is one of the key parameters in estimating the gas production performance and the flow behavior of gas and water during dissociation. In this paper, a three-dimensional cubic pore-network model based on invasion percolation is developed to study the effect of hydrate particle formation and growth habit on the permeability. The variation of permeability in porous media with different hydrate saturation is studied by solving the network problem. The simulation results are well consistent with the experimental data. The proposed model predicts that the permeability will reduce exponentially with the increase of hydrate saturation, which is crucial in developing a deeper understanding of the mechanism of hydrate formation and dissociation in porous media.