相对渗透率定量预测新方法

A new method for measuring the relative permeability quantitatively.

在压汞测试的基础上 ,利用分形几何学原理和方法 ,建立了毛管压力曲线分形模型和相对渗透率的分形预测模型。在毛管压力曲线分形模型和分数维的基础上 ,能准确确定任意含水饱和度 ,提高了饱和度的预测精度。在此基础上 ,利用建立的相对渗透率分形预测模型 ,可求得任意含水饱和度下的润湿相相对渗透率和非润湿相的相对渗透率。

Based on the capil lary pressure curve and the fractal geometry, the fractal capillary pressure and the relative permeability model are set up. Based on the fractal capillary pres sure model and the fractal dimension, the water saturation is calculated accurat ely, and the reliability of the water saturation is increased. The fractal relat ive permeability model is set up. The relative permeability can be calculated fo r wetting and non wetting phase at arbitrary saturation. The reliability of th e method of relative permeability estimation is verified by actual core sample.