井间示踪法在储层剩余油分布研究中的应用

采用半解释法对井间示踪监测资料进行处理，求解储层的剩余油饱和度。该方法取解法和数值法的优点优化组合形成，包括：（1）依据数值法确定油层压力分布和流线分布；（2）通过模拟产出浓度和实测产出浓度的自动对照，确定最符合实际地层的剩余油饱和度分布方案；（3）利用物质平衡方法确定其他参数；（4）利用解析法提供一个平均值，作为物质平衡方法的基础或参考。对港东油田浅3－9井组的动态资料及剩余油饱和度分析的结果表明，应用该方法评价区块的剩余油分布是有效的，该方法在注水开发区具有广阔的推广应用前景。

Use of Interwell Tracing in Studying the Distribution of Residual Oil in a Reservoir

A seismic interpretive method is applied to process interwell tracing data to determine residual oil saturation in a reservoir The method is optimized by combining the advantages of both numerical and analytical method,such as to determine the distribution of reservoir pressure and flow line with numerical method;to decide the distribution of residual oil saturation which is most consistent with a specific layer by comparing automatically the simulated and measured output concentrations; to find other parameters with method of material balance; and to offer an average value as a basis or reference with analytical method An analysis of dynamic data from well group Qian 3 9 in Gangdong oilfield and the distribution of residual oil saturation demonstrates that the method is favorable to evaluate the block's residual oil distribution in waterflooding area