Hierarchical modeling method and its application in the construction of fluvial architectural elements model

The recognition and forecasting of the fluvial architecture object is a key task on enhancing oil recovery in the late development stage of oilfield. According to the hierarchy of the fluvial object, the hierarchical modeling method is used to predict the architectural element in high sinuous river and braided river. In high sinuous river, the channel, point bar and HIS is modeled in order, and the same thing is executed in braided river. The new drilling wells show that the model has comparable precise and the numerical reservoir simulation shows the remaining oil is constrained by the deformed bedding, which is proved by the production data. The results show that the model constructed by the hierarchical modeling method can be used to conduct the production and enhancing oil recovery.