一种预测储层含油饱和度的新方法

剩余油分布预测是油田开发中、后期的主要任务之一。通过对测井资料进行解释，可以预测井区附近剩余油的分布情况，但无法预测远离井区域的剩余油的分布情况。采用时间平均方程和时移地震技术，得出了预测剩余油分布的方法。结果表明，由时间平均方程可以求得静态剩余油饱和度；将时间平均方程与时移地震相结合，可以获得动态剩余油饱和度（饱和度的变化率）。该方法符合精细地质研究的思想，为用时移地震技术预测油、水分布的动态信息提供了科学依据。

A New Method to Predict Oil Saturation in Reservoir

Predicting residual oil distribution is the main task in the middle and late period of oilfield development.By mean of well logging data interpretation, the residual oil distribution nearby the well can be predicted,but the state far away from the well is hard to prediction. With the help of time-average equation and 4D(time migration) seismic technique,residual oil distribution predicting method is developed.The results show that static residual oil saturation can be obtained by time-average equation and on the contrary dynamic residual oil saturation (the change rate of saturation) can be gained through integrated time-average equation with time migration seismic technique.The method is coincident with the thought of fine geological research and provides the scientific basis for predicting oil and water distribution dynamic by time migration seismic technique.