Saturation-dependencies of three-phase relative permeabilities in mixed-wet and fractionally wet systems

被引：48

作者：

van Dijke, MIJ ^{[1
]}

Sorbie, KS ^{[1
]}

McDougall, SR ^{[1
]}

机构：

[1] Heriot Watt Univ, Dept Petr Engn, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

ADVANCES IN WATER RESOURCES | 2001年 / 24卷 / 3-4期

关键词：

three-phase flow; relative permeability; saturation-dependency; weakly wetted pores; contact angles; interfacial tensions; mixed-wet; fractionally wet;

D O I：

10.1016/S0309-1708(00)00062-2

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

The saturation-dependency behaviour of three-phase relative permeabilities is of central importance for modelling three-phase displacement processes in porous media. In this paper, and in related work, a method has been developed to determine the saturation-dependencies of three-phase relative permeabilities. This method is suitable for all types of mixed-wet and fractionally wet porous systems that contain clusters of oil-wet and water-wet pores with constant but different oil-water contact angles, reflecting weakly wetted conditions. Based on the classification of all allowed pore occupancies in a completely accessible porous medium, saturation-dependencies of the corresponding relative permeabilities are derived. Furthermore, three-phase relative permeabilities that appear to depend only on their own saturations are either linked to the corresponding two-phase relative permeabilities or it is shown that such a link cannot be established. A comparison has been made with existing relative permeability models with respect to their saturation-dependencies. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：365 / 384

页数：20

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