递减率计算新方法及在调驱评价中的应用——以渤海Q油田为例

A new calculation method of decline rate and its application in profile control evaluation——by taking Bohai Q oilfield as an example

摘要: 油田调驱措施与其他增油措施同时实施时,调驱增油与其他措施增油难以准确判断。为此,基于乙型水驱曲线推导出适用于稳定水驱阶段的定液量条件下的理论递减率计算方法,并通过Q油田两口井实例应用分析,说明该方法具备较好适用性,同时可为调驱增油和其他措施增油进一步量化劈分提供借鉴。

Abstract: It is difficult to accurately judge the effect of oil stimulation by profile control and other measures when they are implemented at the same time. Therefore, based on the B-type water drive curve, the calculation method of theoretical decline rate under the condition of constant liquid volume suitable for stable water drive stage is derived. Through the application analysis of two wells in Q oilfield, it shows that the method has good applicability, and it can be used for reference for the splitting of oil increment by profile control and by other measures.