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喇嘛甸油田北北块上返萨Ⅲ4-10油层聚合物驱是继一类油层(葡I1-2油层)五个注聚合物区块后喇嘛甸油田开辟的又一新的注聚推广区块,同时也是喇嘛甸油田二类油层的第一个上返工业区块。在聚合物驱开发过程中为进一步提高聚合物驱采收率,利用精细地质技术分析确定在北北块一区开展SⅢ4-10油层上返,并开展高分子几个高浓度聚合物驱。SⅢ4-10油层平面及纵向上非均质比较严重,通过油水井综合调整,努力改善区块的整体开采效果,及时分析总结对其它二类油层上返具有一定的指导意义。
The Polymer Flooding of the Upper Reaches of Sanshun-4-10 Reservoir in the North Block of Lamadian Oilfield is another new agglomeration and promotion block opened up by Lamadian Oilfield after the injection of five polymer blocks of a first oil reservoir (Portuguese I1-2 oil reservoir) , But also the first Shanglai industrial block of Lamadian Class 2 oil layer. In the process of polymer flooding, in order to further improve the recovery rate of polymer flooding, fine geological technique analysis was used to determine the recovery of SⅢ4-10 oil layer in the first block of North-North Block and to carry out polymer flooding at high polymer concentrations. The SⅢ4-10 oil layer is relatively non-homogeneous in both horizontal and vertical directions. Through the comprehensive adjustment of oil and water wells, efforts are made to improve the overall mining effect of the block. The timely analysis and summary is of guiding significance for the return of other oil reservoirs.