A New Pore-Network Model of Capillary Drainage andImbibition

A pore network model is developed to acquire the relative permeability curve and to simulate capillary drainage and imbibition processes. In contrast with the usual models in this model a computationally economic method is used to predict the capillary pressure and relative permeability curves faster. The results are compared with the experimental data and the results achieved by a model developed by Bluntet.al (2013). The comparison demonstrated that the model can be a reliable tool for studying the real porous media. In addition, it is shown that by increasing pressure increments, the irreducible saturation will be smaller. Also, because of the significant simplicity of the model, this model can be used in larger scale networks and bring the pore network modeling closer to the field scale models.

Keywords:

Network Modeling , Relative Permeability , phase trapping , Irreducible Saturation