Distinguishing Preferential Seepage Channel By Using Dynamic Data

Nowadays,the most of domestic oilfields have entered into a high water-cut stage after decades of production.The preferential seepage channel has widely existed,by which development investment and cost would be raised and economy and social benefits would be reduced.The identification of seepage channel was the key for reducing the unfavorable effect of oilfield development and it was the premise and basis for the application of plugging control technology.Therefore,it was essential for quick and accurate identification of the preferential seepage channel.A new idea and method were proposed to distinguish the preferential seepage channel in sandstone reservoirs by studying the correlation between the preferential seepage channel and dynamic data of the oilfield and the model of telecommunication simulation signals was used for quick and accurate distinguishing the dynamic data of the preferential seepage channel.This method is applied in a block of Zhongyuan Oilfield,the predicting result is consistent with that of simulation.This method is more convenient,simple,effective compared with the traditional methods,it is valuable for field application.