阵列感应测井在盐水泥浆井中的应用

目标区块受客观因素影响,油、水层电阻率差异小,常规电阻率法识别储层流体比较困难。泥浆侵入条件下,油、水层不同径向深度处电阻率变化所受的影响因素不同,以阿尔奇公式为基础,利用阵列感应测井资料,确定纯水层中水的径向电阻率,计算其它地层中不同径向深度的含水饱和度系数,直观反映地层流体含量的变化,正确识别储层流体。

Application of array induction imager log data to salt mud wells

Resistivity difference between oil layer and water layer is unconspicuous in target area. It is hard to identify the types of fluids in formation utilizing the conventional resistivity log. Under mud invasion, resistivities of oil layer and water layer in different radial depth are influenced by various factors. Based on Archie formula, we can know the changes of fluid content in formation through calculating radial resistivities of water layer and water saturation coefficient of different radial depth in other layers utilizing array induction imager log data, so we can identify the types of fluids in formation.