Anlysis on the Influence of Non-homogeneous Pay Flooding Level to Oilfield Development

Numerical simulation and conceptual model are used to research the influence of different flooding oil layers to the development effect.The influence of different flooding oil layers to the water cut and recovery percent are calculated and the largest level flooding of non-homogeneous pay is provided.The results show that the best flooding oil layers combination is no-low flooding combination for the oilfield development,the worst one is middle-high combination at a fixed time.The difference of recovery percent of layer which has different flooding degree is large,When the water cut has reached 98%,the development time of which combined with high flooding level is comparatively short and the recovery ratio of that is comparatively low.