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论文类型：期刊论文

发表时间：2010-09-08

发表刊物：Applied Mechanics and Materials

收录刊物：EI、CPCI-S、SCIE、Scopus

卷号：29-32

页面范围：1762-1767

ISSN号：9780878492459

关键字：methane hydrate; porous media; permeability reduction; absolute permeability; relative permeability; hydrate dissociation; simulation

摘要：To make the recovery of methane from hydrates commercially viable, many uncertainties in hydrate dissociation process in porous media must be solved. In this study, the permeability variation with the pore-scale hydrate distributions was experimentally determined, and through the comparison of the experimental results with permeability correlations, the hydrate forming in the center of pore space was confirmed. To evaluate the effect of permeability reduction, absolute permeability and relative permeability on MH dissociation and gas production behavior, the Masuda permeability model was incorporated with a depressurization mathematical model, and some simulation runs was carried out. Based on the results of the numerical simulation, the effect of permeability variation on gas production from hydrate was analyzed.