Inverse Problem Models of Oil-Water Two-Phase Flow Based on Buckley-Leverett Theory

摘要

Based on Buckley-Leverett theory, one inverse problemmodel of the oil-water relative permeability wasmodeled and proved when the oil-water relative permeability equations obey the exponential form expression, and under the condition of the formation permeability that natural logarithmdistribution always obey normal distribution, the other inverse problemmodel on the formation permeability was proved. These inverse problem models have been assumed in up-scaling cases to achieve the equations by minimization of objective function different between calculation water cut and real water cut, which can provide a reference for researching oil-water two-phase flow theory and reservoir numerical simulation technology.