Abstract: Flooding process enlarges the porosity and air-permeability of reservoir,but it doesn't change the relations between them and their log response.The result of rock resistivity experiment on simulated flooding process indicates that the parametersbandnof Archie equation are not constants,and the changing of parameterFis not only because of the difference of the function of pore structure,but also the change ofRwin water flooded zone.Unified Archie equation established on this base may be adapted to all stages in the flooding process.The linear model of water cut vs.water saturation makes it possible to analyze the relations of reservoir and fluid characteristics with water-cut.Unified water-cut equation established on this base may be adapted to describe the flooding process.Such unified equations have a theoretical and more practical value.

Key words: Shengtuo Oilfield, water flooded zone, logging, interpretation, equation, simulation test

摘要： 在胜坨油田二区沙二段1～2砂层组中,水淹造成了油层孔隙度和空气渗透率的增大,但对两者与测井响应之间的关系规律没有影响.模拟水淹过程所做的岩电实验表明,水淹状态下,阿尔奇方程的b、n等参数不是常量,F也不单纯是孔隙结构的函数,而是随着水淹层中水电阻率变化而变化.充分考虑这种变化,可以建立适合不同水淹阶段的统一阿尔奇方程及含水率与含水饱和度直线模型,这为充分考虑储层物性、流体性质对含水率变化的影响提供了可能.以此为基础,成功地建立了不同含水期水淹油层的统一性解释方程.

关键词: 胜坨油田, 水淹油层, 测井, 解释, 方程, 模拟实验