This study extends our previous studies on the effects of the IFT on the seepage characteristics in hydrate-bearing porous media using pore network model with X-ray computed tomography. The results indicate that the relative permeability to both methane gas and water decreases as IFT increases. And the influence of the IFT on the two-phase relative permeability increases along with the particle size of the porous media. Moreover, the variation in absolute permeability is always positively related to average pore/throat radii in all type of hydrate-bearing porous media. In addition, the capillary pressure decreases along with IFT.

中文翻译：

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含水合物多孔介质中渗透率随界面张力的变化

这项研究使用X射线计算机断层摄影的孔网络模型，扩展了我们先前对IFT对含水多孔介质中渗流特性影响的研究。结果表明，随着IFT的增加，对甲烷和水的相对渗透率会降低。IFT对两相相对渗透率的影响随着多孔介质的粒径而增加。而且，在所有类型的含水合物的多孔介质中，绝对渗透率的变化总是与平均孔/喉半径成正相关。另外，毛细管压力随着IFT而降低。