The added value of the joint pre-stack inversion of PP (incident P-wave and reflected P-wave) and PS (incident P-wave and reflected S-wave) seismic data for the time-lapse application is shown. We focus on the application of this technique to the time-lapse (four-dimensional) multicomponent Jubarte field permanent reservoir monitoring seismic data. The joint inversion results are less sensitive to noise in the input data and show a better match with the rock physics models calibrated for the field. Further, joint inversion improves S-impedance estimates and provides a more robust quantitative interpretation, allowing enhanced differentiation between pore pressure and fluid saturation changes, which will be extremely useful for reservoir management.

中文翻译：

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联合 PP-PS 反演对储层特征的附加价值：使用 Jubarte PRM 地震数据的案例研究（巴西近海）

显示了 PP（入射 P 波和反射 P 波）和 PS（入射 P 波和反射 S 波）地震数据的联合叠前反演对于延时应用的附加值。我们专注于将该技术应用于延时（四维）多分量 Jubarte 油田永久储层监测地震数据。联合反演结果对输入数据中的噪声不太敏感，并显示出与为现场校准的岩石物理模型更好的匹配。此外，联合反演改进了 S 阻抗估计并提供了更可靠的定量解释，允许增强孔隙压力和流体饱和度变化之间的差异，这对于储层管理非常有用。