关键词: 油层, 剩余油, 非均质, 动态分析, 预测方法

Abstract: Considering the actual conditions of multi-layer,heterogeneity in a layer or between layers and nonsymmetrical well pattern,on the base of Buckley-Leverett water flooding theory for a homogeneous formation with symmetrical well pattern,a method to predict single-layer residual oil distribution and dynamic index has been proposed.Section test data of injection and production wells has been used properly.According to the theory of potential superimposition,the model to predict pressure distribution in a heterogeneous formation has been established.Compared with the numerical modeling,the software of the method in this paper runs more quickly and requires less built-in storage and capacity.Moreover,it may match lamination test and well point dynamic data automatically.Examples have shown that the method to predict the distribution of single layer remaining oil in this paper is feasible.

Key words: formation, remaining oil, heterogeneity, dynamic analysis, prediction method