Dynamic Features And Regulation Technique Research Of Contact Zone Between Water Flooding And Polymer Flooding In Classⅱ Reservoirs

Based on the study of geological features about Classâ…¡reservoirs, this paper clarifies that people take oil displacement experiments indoor , utilize the numerical simulation, with the comprehensive analysis of production dynamic and static data, and summarize the dynamic exploitation features of polymer flooding band, water flooding band and the contact zone in Classâ…¡reservoirs. On the basis of these studies, people begin to optimally adjust injection-production index, study the comprehensive regulation technique to improve the development effects of polymer flooding band, water flooding band and the contact zone in Classâ…¡reservoirs. Therefore, when the effects of polymer flooding in Classâ…¡reservoirs are improved, the speed of composite decline about water-flooding band in Classâ…¡reservoirs can be slowed down, which provides experiences for the further development of polymer flooding in Classâ…¡reservoirs in Daqing oilfield.