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本文在精细地质研究成果的指导下,研究了喇嘛甸油田聚驱后剩余油分布状况。针对聚驱后剩余油主要分布在注采不完善部位及各剥蚀面之下渗透率相对较低层位,厚度小且高度分散,挖潜难度大的实际情况,在后续水驱阶段提出了井网综合利用、注采系统调整、周期注水等经济实用的综合挖潜措施,产油量增加效果明显,改善了后续水驱的开发效果,进一步提高聚驱全过程的采收率。
Under the guidance of the fine geological research results, the paper studies the distribution of remaining oil after the polymer flooding in Lamadian Oilfield. In view of the fact that the residual oil after the flooding is mainly distributed in the imperfect parts of the injection and production and the layers of relatively lower permeability under the erosion surfaces, the thickness is small and highly dispersed, it is difficult to tap the potential. In the subsequent water flooding stage, the well pattern Comprehensive utilization, injection and extraction system adjustment, periodic water injection and other economical and practical integrated tapping measures, oil production increased significantly, improving the subsequent development of water flooding effect, and further improve the recovery of the whole process of oil recovery.