Abstract: Based on numerical simulation study of water displacement reservoir, determination of the initial conditions for continuous water drive in high water-cut stage was discussed.According to the latest data from 13 wells drilled in pilot area and reservoir engineering methods, the simulation model was corrected to be more suitable for reservoir avalable, and model for continuous water drive was then developed in order to match the performance history of reservoir in high water-cut stage.Based on these, the injection allocation, proration production and development pattern of reservoir were worked out and estimated, thus the optimum project for continuous water drive of reservoir was selected. This simulation study has a directive significance for oilfield development in high water-cut stage.

Key words: Karamay oilfield, Model, Numeric simulation, Matching, Development, Prediction