水淹层目前含水饱和度评价方法

Current Water Saturation Evaluation Method of Water Flooded Zone

本文结合T油田实际地质特点,对比分析了几个常用饱和度模型,优选了印度尼西亚模型作为该地区目前含水饱和度的计算公式。在岩石物理实验基础上,研究了混合液电阻率的确定方法,提出分岩性确定岩电参数。经实例验证,该方法可以比较准确地进行目前含水饱和度的定量解释,应用效果较好,解释成果合理可信。

In this paper, according to the actual geological characteristics of T oilfield, several commonly used saturation models are compared and analyzed. Indonesia model is optimized as the calculation formula of water saturation in this area. On the basis of rock physicsexperiments, we researched the method to determine the resistivity of mixed fluid and proposed to determine rock electrical parameters according to the different lithology. Experiments verify that with this method quantitative interpretation of water saturation can be made accurately. The application effect is satisfactory. The interpretation result is reasonable and reliable.