复合离子聚合物整体调剖效果

喇嘛甸油田北西块葡Ⅱ—2油层纵向非均质严重，适合于调剖的井数多，注聚前集中在5个注入站采取了复合离子聚合物整体调剖，调剖井比例为84％，取得了明显的增油降水效果，并且充分利用调剖后注入均衡的有利时机，采取采出井压裂对应调整层位等综合调整措施，最大限度地发挥整体调剖的作用。通过对北西块整体调剖效果的分析，说明调剖可以明显提高中低渗透层的动用程度和驱油效率，驱油效果好于未调剖区。整体调剖不仅调整了注入井纵向注入不均衡的矛盾，而且在不同沉积单元不同注入方向上同时进行了平面调整，驱油效果好于单井调剖区。注聚前整体调剖是改善聚合物驱开发效果的有效方法。

The Extensive Profile Control of Compound Ion Polymer

The vertical heterogeneity of PI1 - 2 reservoir is serious in the Beixi area of Lamadian oilfield, the extensive profile control of compound ion polymer is performed before the polymer injection, the proportion of profile control wells is 84% and the radius of profile control wells is 70 meter. The extensive profile control gets good effect of increasing oil production and reducing water cut and fully utilizes the favorable opportunity to adopt various adjustment measures to improve the effect of producing wells. This paper summarizes the results of the extensive profile control. Its account for the extensive profile control can enlarge the swept volume and enhance the displacement efficiency of mediate to low permeability layers, and adjust the in-layer and plane interference. The extensive profile control of compound ion polymer is one of the effective methods of improving the development effect of polymer flooding.