Study on the Numerical Simulation Method of the Layered Deep Profile Control in Thick Reservoir

Abstract

In recent years, deep profile control has become the main measure to tap the potential of the remaining oil of thick oil layer in the later period of high water cut. The numerical simulation technology is widely used to optimize the plan and predict the effect of the deep profile control. According to the characteristics of layered deep profile control of thick oil layer and the sedimentary law of thick oil layer, this paper puts forward a “three parts method” thick oil layer modeling method: Firstly, the average permeability Kaverage of thick layer is calculated. The average permeability of the layers less than Kaverage is Klow, and the average permeability of the layers greater than Kaverage is Khigh. According to the permeability 0−Klow, Klow−Khigh, and >Khigh, the thick layer is divided into three layers. This division method can not only fully reflect the basic attribute characteristics of thick reservoir, but also is more suitable for deep profile control mechanism simulation and parameter setting of thick reservoir. The result of field application shows that the prediction result of the deep profile control effect of the numerical simulation based on this modeling method is basically consistent with the field effect. The application of this method to the layered deep profile control numerical simulation of thick oil layer is preliminarily studied and discussed, which has certain guiding significance for the field application.KeywordsThick oil layerDeep profile controlNumerical simulationThick layer division