【摘要】 分别用人造岩心和人造均质平面模型，在实际油层条件下研究了辽河油田齐40稠油油藏实施水级及聚合物驱的室内驱油效率及级替特征。在驱油实验中用核磁共振成象技术研究了稠油油藏水驱和聚合物驱的驱油机理。结果表明，在一定条件下，稠油油藏在蒸汽吞吐后实施聚合物驱是可行的；聚合物驱主要通过扩大波及范围和增加驱替压差来提高驱油效率；聚合物驱后仍有大量的残余油滞留在孔隙介质中。更多还原

【Abstract】 Based on the artificial core and the homogeneous physical model, this paper studies the displacement efficiency and the displacement feature of water drive and polymer flooding of heavy oil reservoir forBlock Qi 40 under reservoir condition. By applying imaging technique of nuclear magnetic resonance, the mechanism of water drive and Polymer flooding of the heavy oil are studied. It is shown that polymer flooding of heavyoil after steam soaking is feasible under some condition, and Polymer flooding can enhance oil recovery by extending sweep efficiency and improving displacement pressure drop,and a lot of residual oil after polymer flDoding remain in porous media.更多还原