| In order to explore the feasibility of three yuan compound drive two kinds of thick reservoir heterogeneity is more serious, to carry out a pilot test in North East block of Lamadian oilfield.In this paper, to modern reservoir engineering and physics and chemistry theory as a guide, the ternary composite drive in second class reservoir ternary combination flooding dynamic regularity of the whole process, second class reservoir ternary polymer flooding chemical agent concentration variation, second class reservoir ternary combination flooding emulsion, scaling law mechanism of oil and flooding. From the oil displacement mechanism of analysis of the viscosity of polymer flooding, ternary combination flooding effect and oil displacement agent types on displacement efficiency of oil; relying on the second class reservoir test area, the ternary combination flooding the whole process of dynamic change, injection production well, middle well chemical agent concentration, recovery and the influencing factors of reservoir performance produced emulsion, scaling mechanism and change law of node. |