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本文以注采井组为单元,统计渤中25-1南油田16个注采井组分层配注前后的实际生产数据,分析对比井组分层配注前后的月产油、含水率、含水上升速度、水驱可采等开发指标,评价分层配注井组开发效果,并以实际井组数据为例分析开发效果改善或变差原因。另外,引入有效期概念,评价分层配注措施效果的维持时间。
In this paper, the injection production well group as a unit, statistical Bozhong 25-1 South Oilfield 16 injection well group before and after the injection of the actual production data, analysis of the well group before and after the distribution of monthly injection of oil, water content, Water cut rate, waterflood recovery and other development indexes to evaluate the development effect of stratified injection well group, and analyze the reasons for the improvement or deterioration of development effectiveness based on the actual well group data. In addition, the concept of validity period is introduced to evaluate the maintenance time of the effect of stratification betting measures.