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用于反演的地震数据主要包含的是中频段信息,缺少低频和高频成分,做好波阻抗反演的关键是合理地恢复地震的低频和高频信息。文章在介绍JASON反演基本流程的基础上,提出了反演过程应该注意的几个重要环节,着重讨论了波阻抗低频分量构造在JASON反演中的应用。提出应根据工区实际情况添加合适的低频分量才能获得准确的波阻抗反演结果。
The seismic data used for inversion mainly contains mid-band information, lacking low-frequency and high-frequency components, and the key to doing wave impedance inversion is to reasonably recover the low-frequency and high-frequency information of earthquakes. Based on the introduction of the basic flow of JASON inversion, several important points that should be paid attention to in the inversion process are put forward, and the application of low impedance components of wave impedance in JASON inversion is emphatically discussed. It is suggested that the appropriate low-frequency component should be added according to the actual situation in the work area to obtain the accurate inversion result of wave impedance.