The Design Of The Ternary Composite Flooding Project For The Second Oil Formation In Sazhong Block

Alkali/surfactant/polymer ternary compound flooding is a three method for oil recovery,which can increase the sweep volume and increase the oil displacement efficiency.Based on asp flooding oil displacement mechanism research,this paper examines the rheological properties of asp flooding oil displacement system and the synergistic effect between them,and theoretically discusses the several important factors which influence the displacement efficiency of asp flooding.On this basis,the sa in the reservoir conditions,for example,through the indoor experiment examines the five kinds of composite system and daqing crude oil interfacial tension between the properties of three kinds of different oil displacement system,and further through the core displacement experiment explore oil displacement efficiency in asp flooding and the relationship between the interfacial tension of reservoir permeability,system,and put forward of asp flooding for sa development zone in the second type reservoir engineering design.