Abstract: Based on the keystone of flow unit, a quantitative classification method is proposed for conglomerate reservoir with high water cut of Badaowan formation in Midwest of District 2 in Karamay oilfield. After optimizing the parameters from cored holes, the reservoir flow units are classified into four types using cluster analysis and the discriminant functions for each type of flow units are set up for discriminant analysis and classifying the flow units of non-cored holes. The flow unit 3D geologic model is developed using sequential indication simulation method, in order to more properly reflect the flowing characteristics of in-situ fluids. This model could be as a guide for forecasting the distribution of remained crude oil, modification of this high water-cut oilfield development and enhancing the oil recovery in this area.

Key words: conglomerate reservoir, flow unit, cluster analysis, remaining oil, Karamay oilfield