辽河常规稠油油藏的聚合物驱问题研究

稠油油聚聚合物驱是一个很敏感的问题。本文以目前仍采用水驱的常规稠油油藏为研究对象，在天然岩心，人造岩心和平面模型中进行室内实验，主要研究了常规同油藏水驱后进行聚合珠驱的驱油效率和驱替特征；同时，用核磁共振成像技术研究了其驱油机理。

Study on Polymer Flooding of Liaohe Heavy Oil Reservoir

The polymer flooding of heavy oil reservoir is of importance in oil exploitation. Based on the native cores, the artificial cores and the homogeneous physical models, this paper studies the displacement efficiency and the displacement feature of water drive and polymer flooding of heavy oil reservoir under reservoir conditions. By applying imaging technique of nuclear magnetic resonance, the mechanism of water drive and polymerflooding of the heavy oil are investigated. The results show that the polymer flooding of heavy oil reservoir is feasible, and polymer flooding can improve not only the sweep factor, but also the displacement efficiency; but a considerable fraction of residual oil remains in reservoir after polymer flooding.