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基于稳定渗流理论和已有的水驱曲线推导了注入倍数曲线与采出程度的关系式,表明基于现场统计规律提出的注入倍数曲线具有严格的理论基础,能够有效指导油田开发实际.根据推导的注入倍数曲线各项的理论意义,指出注入倍数曲线能够用来判断水驱开发效果,可以作为水驱诊断方法.引入注入倍数导数曲线,结合实例说明该导数曲线能够用来及时、准确、高效的评价水驱油田开发效果.
Based on the theory of steady seepage and the existing water flooding curve, the relationship between the injection multiple curve and the degree of recovery is deduced. It is shown that the injection multiple curve based on the field statistical rules has a rigorous theoretical foundation and can effectively guide the development of the oilfield. According to the derivation It is pointed out that the injection multiple curve can be used to judge the development effect of water flooding and can be used as a diagnostic method for water flooding.Improvement of the injection multiple derivative curve and the example shows that the derivative curve can be used for timely, accurate and efficient Evaluation of water flooding field development effect.