Capillary pressure-saturation relation for gas-liquid two-phase fluid in spherical pore

LIU Guiling; MIN Jingchun; TANG Yicun

doi:10.11949/j.issn.0438-1157.20160720

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Capillary pressure-saturation relation for gas-liquid two-phase fluid in spherical pore

更新时间：2025-12-10

- Capillary pressure-saturation relation for gas-liquid two-phase fluid in spherical pore
- CIESC Journal Issue S1, Pages: 40-46(2016)
- 作者机构：
  
  清华大学工程力学系, 热科学与动力工程教育部重点实验室,北京,100084
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160720
  CLC： 359+.1
- Online First：31 August 2016，
  
  Published：31 August 2016
- 稿件说明：
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LIU Guiling, MIN Jingchun, TANG Yicun. Capillary pressure-saturation relation for gas-liquid two-phase fluid in spherical pore[J]. CIESC Journal, 2016, (S1): 40-46.
DOI：

LIU Guiling, MIN Jingchun, TANG Yicun. Capillary pressure-saturation relation for gas-liquid two-phase fluid in spherical pore[J]. CIESC Journal, 2016, (S1): 40-46. DOI： 10.11949/j.issn.0438-1157.20160720.

摘要

毛细压力与饱和度的关系是多孔介质多相流最基本、最重要的关系之一。综述了毛细压力与饱和度关系的研究现状，列举了多种毛细压力与饱和度关系模型，展现了Leverett-J函数的发展历程。在此基础上以单个球形空腔内气液两相流体为研究对象，依据几何分析推导得到了固液接触角分别为10°、30°、60°和90°时毛细压力随饱和度的变化关系，计算结果与文献中的实验结果具有相同的变化趋势，从而很好地说明了毛细压力与饱和度关系曲线的变化特征。

Abstract

The relationship between capillary pressure and saturation is one of the most basic and important issues of multiphase flow in porous media. The-state-of-the-art of theoretical models on capillary pressure-saturation relation as well as the progress of Leverett-J function are reviewed and discussed

and then the capillary pressure-saturation equations for liquid-gas two-phase fluid in a single spherical cavity are derived through geometry manipulation. Calculations are performed for solid-liquid contact angles of 10°

30°

60° and 90° using such equations

the obtained results are consistent with the experimental data in the literature

providing a rational explanation for the variation characteristics of the capillary pressure-saturation curve.

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