检验相对渗透率曲线的两种方法

Two Techniques for Determining Relative Permeability Curves

On the basis of Buckley-Leverett's principle on displacement of oil with water, two basic formulae are derived for checking whether relative permeability curves from displacement experiment reflect the experiment process. Two techniques of determination thus obtained are described in detail. Using the techniques, the relative permeability curves calculated for four samples are compared with measured curves separately. As a result, the relative permeabilities calculated for two samples agree with those from the experiment. while for other two samples do not. Therefore the techniques proposed in this paper are simple, reasonable, and accurate.