【摘要】 含水率曲线是研究水驱油田产水规律的基本曲线。在总结现有产水规律研究方法的基础上,从考虑室内岩心与实际油藏宏观、微观地质特性差异的角度出发,结合相对渗透率曲线以及实验岩心、实际油藏体积波及系数的确定方法,提出并建立了一种确定水驱油田理论含水率曲线的新方法——波及系数修正法。实例计算表明,采用该方法确定的理论含水率曲线较之现有方法,与实际曲线吻合得更好,能更准确、客观地反映实际油藏的产水动态。更多还原

【Abstract】 Water cut curve is the basic curve used to research the water-yielding rules of the water drive oilfield.This paper reviews the existing research methods for the water-yielding rules,presents the difference between the lab core and the real reservoir in macroscopic and microscopic geologic characteristics,integrated with the relative permeability curve and the methods for determination of the volumetric conformance efficiency of lab core and the real reservoir,and proposes a new method-conformance efficiency modification method that can be used to determine the theoretic water cut curve of the water drive oilfield.The case study indicates that the calculated theoretic water cut curve is more accordant with the actual performance than the existing methods.更多还原