淡水驱替过程中的岩石电阻率实验研究

Experiment on Rock Resistivity in the Process of Fresh Water Drive

范宜仁，邓少贵，刘兵开．淡水驱替过程中的岩石电阻率实验研究．测井技术，１９９８，２２（３）：１５３～１５５在注水开发油区和地层水多变的油区，电性参数解释非常困难。从岩石物理的角度，进行了模拟油田水淹过程的实验室驱替测量，得出增饱和油及淡水水淹的减饱和油两个过程中岩心的电性参数变化规律，为地层含油性评价提供了重要基础。

With the waterflood development of the mature oilfield, the underground crude oil is partialy displaced by injected water. And the salinity of the formation water becomes variable, so the electric properties of the formation have become more and more complex. From the laboratory measurements of the simulation displacement process of injected water,we found the variation law of the core electric properties in the process of increasing and decreasing oil saturation. The variation pattern is very important in directing the evaluation of oil saturation in water flooded area.