地震属性分析在托浦台储层预测中的应用

对托浦台三维叠后地震资料进行振幅均衡修饰性处理后可以获得高信噪比的地震资料,采用时窗扫描法确定合适的控制时窗,提取能准确反映含油气储层变化特征的属性资料。由于托浦台含油气储层薄,通过对提取的属性资料进行分析筛选,发现振幅和频率等属性能较好地反映该区含油气储层的变化特征,特别是薄油气层的属性特征。S112-2井区块T60反射层振幅属性资料的分析结果证实,采用该方法可以较好地预测出主要含油气储层的分布范围。

Application of Seismic Attribute Analysis in Tuoputai Reservoir Prediction

Seismic data of high signal-noise ratio can be obtained after the amplitude equalizing for 3 dimensional post-stack data in Tuoputai reservoir. A window scanning method is used to determine a proper window control, by which attribute data which can accurately present the property changes of oil and gas reservoirs are extracted. Because there are thin reservoirs in Tuoputai Area, the extracted attribute data are analyzed, it is found out that the characteristics of reservoir changes in the area can be reflected by the attribute of amplitude and frequency, especially for the attribute of thin reservoirs. It is proven by the attribute data from T~0_0 reflected horizon in Well Block S112-2 that the method can be used for better prediction of main reservoir distribution ranges.