In view of the problems such as strong reservoir heterogeneity,small injection water sweep range,low displacement efficiency and weak effect of multiple rounds of profile control and flooding in Hujianshan oilfield,taking H4 reservoir as the research object,based on the results of previous field tests,the combination of near-well profile control and plug-ging with nano-microsphere deep profile control and flooding system is preferred to give full play to the advantages of collaborative management.The results indicate that the combina-tion of plugging and flooding technology has good adaptability for controlling water and in-creasing oil production in heterogeneous reservoirs.The corresponding oil well breakthrough efficiency,water cut reduction amplitude,and average single well oil production are all bet-ter than the single technology,providing reference for optimizing the combination of profile control and flooding systems in similar reservoirs.
关键词
堵驱结合/工艺优化/扩大波及体积/控水增油
Key words
plugging and displacement combination/process optimization/expanded sweep volume/control water and increase oil
维普
万方数据