X区块高分高浓调减体系下薄差层补孔后油层动用特征研究

Research on reservoir producing status after thin & poor zone hole-filling in X block with high molecular weight and high concentration scaling-down system

本文通过对分子量调整前后注入参数及注、产剖面变化的研究分析,确定了聚驱后期高—中分子量变更后注入剖面的变化特征,并由此编制了配套调整方案,并于生产中取得较好效果。

Through the research analysis of injection parameters, injection/producing profile change before and after molecularweight adjustment, this paper researches the change characteristics of injection profile after high-middle molecular weight change inlate stage of polymer flooding. Then, according to this analysis, this paper compiles adapted adjustment scheme and acquires better results.