The Effect of Non-Equilibrium Sorption and Solution on the Displacement of Oil by Chemical Flooding

Abstract

Non-equilibrium processes have a substantial influence on the motion of a continuous medium [201,275]. In the displacement of oil by a chemical solution, sorption of the chemical by rock and solution of the chemical in oil are non-equilibrium processes. The kinetics of these processes is of special importance in laboratory displacement of oil, for which the characteristic sorption and solution times are comparable with the displacement time. In non-equilibrium conditions, it is possible to obtain effects which reflect the influence of the rate of injection on the displacement efficiency of oil by a chemical solution in production conditions.