中文摘要：

为研究多孔介质中甲烷水合物对其渗透性的影响，开发了一套适合在该条件下测量渗透性的实验装置。研究了多孔介质孔隙度与渗透率的关系；用BZ-01、BZ-02玻璃砂模拟多孔介质进行了渗透率测量实验，测试了不同甲烷水合物饱和度下多孔介质渗透率的变化情况。结果表明，多孔介质中甲烷水合物的存在会导致其渗透率急剧下降，饱和度-渗透率曲线呈指数分布。根据实验数据拟合出了渗透率随饱和度变化的经验公式，并将实验数据与渗透率模型进行了比较，发现在实验条件下生成的甲烷水合物符合平行毛细管模型，水合物占据毛细管中心，多孔介质中的流动形成环状流。

英文摘要：

An experimental system which is suitable for measuring permeability under a certain condition, was established to study the effect of Methane Hydrate contained in porous medium on permeability. The relationship between porosity and permeability of porous medium was studied. Several experiments were carried out to test the permeability with different saturation of Methane Hydrate in the porous medium which was substituted by BZ-01 or BZ-02 glass beads. The result showed that the existence of Methane Hydrate in the porous medium would result in an sharp drop in permeability. The relationship between saturation and permeability is exponential. Based on the experimental data, a function of porous medium-saturation was derived to get the corresponding permeability. By comparing the modeling result with the experimental result, It is found that the Methane Hydrate that grew under the experimental condition fit the parallel-capillary model, that means Hydrate took up the centre of the capillary while the flow in the porous medium developed into annular flow.