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为了更好的了解埕岛油田埕北1井区目前的水淹状况和动用情况,利用自投产至今唯一的密闭取心井资料从层内和层间两个方面分析了目前该区的水淹特征。分析认为该区馆上段主力层目前以弱水淹-中水淹为主,剩余油富集。层内水淹特征主要受沉积韵律的影响,夹层具有明显的控油作用;层间水淹主要是受储层的非均质性影响,层间矛盾更突出。
In order to better understand the current flooding status and utilization of the Chengbei 1 well in Chengdao Oilfield, using the data of the closed coring well that has been put into production so far, it analyzes the present flooding feature. The analysis suggests that the main strata of the upper section of the district are currently flooded with weak flooding - mainly flooded, with the remaining oil enriched. The in-layer flooding characteristics are mainly affected by sedimentary rhythm, and the intercalation has significant oil control effect. The inter-layer flooding is mainly affected by reservoir heterogeneity, and the inter-layer conflicts are more prominent.