Microscopic simulation of relative permeability curves in polymer flooding
Online published: 2011-06-20
The relative permeability curve in polymer flooding is the important data for forecasting development indicators. A three-dimensional and quasi-static network model is established based on the percolation theory. Based on Carreau model, viscoelastic polymer microscopic seepage mechanismis simulated.Water flooding and polymer flooding seepage mechanism are simulated by using pore network model, and the relative permeability curves are obtained. The calculated result coincides with the experimental results. The result shows that pore network model can display the influence of capillary pressure. The relative permeability of polymer is lower than that of water phase in conventional oil/water flooding at the same water saturation, and residual oil saturation after polymer flooding is lower than water flooding. The model result indicates that pore network model can be used to simulate the relative permeability curve in polymer flooding.
ZHANG Tao , ZHANG Shiying . Microscopic simulation of relative permeability curves in polymer flooding[J]. Lithologic Reservoirs, 2011 , 23(3) : 119 -123 . DOI: 10.3969/j.issn.1673-8926.2011.03.023
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