Asymptotic model for deep bed filtration

摘要: Abstract Asymptotic solution for non-linear stage of colloidal suspension flow in porous media is developed. The expansion performed behind the concentration front; zero order approximation coincides with short-time linearised system. Using first allows significantly enhancing validity time period analytical model if compared solution, allowing using long-term experimental breakthrough history adjustment. Laboratory injection tests three size colloids are performed. asymptotic used to tune parameters from histories two particles; good quality matching observed. third particles prediction by adjusted model; above serves validation method tuning and media.