毛细管压力、饱和度和相界面积间的关系  

Relationship among capillary pressure,saturation and phases interfacial area

作　　者：陶军[1] 姚军[2] 李爱芬[2] 赵秀才[2] 

机构地区：[1]中油国际海外研究中心,北京100083 [2]中国石油大学石油工程学院,山东东营257061

出　　处：《中国石油大学学报（自然科学版）》2008年第2期90-92,107,共4页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：中国石化科技攻关项目(P05056)

摘　　要：多相流体在多孔介质中流动时,传质扩散、非水相溶解等现象都与相间界面有关,利用孔隙级网络模型定量表征每一个孔隙孔喉中流体分布,结合几何知识,计算得到了多相流体在孔隙级网络模型中流动时的毛细管压力、饱和度和相间界面积,并作出了它们之间的关系曲线。计算结果表明,毛细管压力、饱和度和界面积之间存在着比较明显的相互制约关系。这一关系为研究与界面有关的非水相溶解、界面间的传质等现象奠定了基础。When fluids flow in porous media, many phenomena such as mass transfer and non-aqueous dissolution have some relationship with phases interfacial area. The fluid distribution in each pore and throat was expressed quantitatively by porescale network model. The capillary pressure, saturation and phases interfacial area of fluid flowing in pore-scale network model were calculated, and the relation was obtained by using the knowledge of elementary geometry. The results show that there is well-defined functional relationship among capillary pressure, saturation and phases interfacial area. This relationship laid foundation for researching on non-aqueous phase liquid dissolution, interfacial mass transfer phenomenon.

关 键 词：孔隙级网络模型 多相流 毛细管压力 相界面积 饱和度 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]