Due to the continuous utilization of polymer flooding in oilfield exploitation,the stable oil production after polymer flooding becomes more and more difficult.The manuscript takes one-time up-return and plugging the original formation,second-time up-return in X combination flooding block in north Saertu oilfield as an example.The test data is employed and analyzed to monitor the oil-water well system and evaluate the effects in occlusion (the layer between water flooding and polymer flooding),patching holes and blending.On the basis of monitoring pre-polymer slug,further adjustment of main slug project is conducted.These results are significant or the reasonable adjustments of development schemes.%随着萨北油田聚驱开采的不断深入,聚驱后稳产难度越来越大,以萨北油田X复合驱聚驱部分采取利用一次上返井网、封堵原层系二次上返为例,应用测试资料对有油水井进行系统监测,评价封堵(水驱与聚驱连通层)、补孔及调配方案效果.在监测前置段塞的基础上,进一步调整主段塞方案,为合理调整开发方案提供依据.
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