Research on Relative Permeability of Nanofibers with Capillary Pressure Effect by Means of Fractal-Monte Carlo Technique

摘要

The relative permeability of porous nanofibers is simulated by means of Fractal-Monte Carlo technique. The present probability model is found to be a function of saturation, porosity, area fractal dimension for pores, the fractal dimension of tortuous capillaries, capillary pressure and microstructural parameters of porous nanofibers. It is found that the relative permeability of wetting phase increases with increasing the saturation of the wetting phase. On the contrary, it can be observed that the relative permeability of non-wetting phase increases with decreasing the saturation of the wetting phase. The model predictions are compared with the available experimental data, and good agreement between the model predictions and experimental data is found. The validity of the proposed probability model is thus verified. Therefore, the present probability model has revealed the physical mechanisms of relative permeability in porous nanofibers.