Accurately Stable Q-Compensated Reverse-Time Migration Scheme for Heterogeneous Viscoelastic Media

The development of multi-component seismic acquisition technology creates new possibilities for the high-precision imaging complex media. Compared to scalar acoustic wave equation, elastic equation takes information P-waves, S-waves, and converted waves into account simultaneously, enabling accurate description actual propagation. However, inherent attenuation is one important factors that restricts migration imaging. Its influence mainly reflected in following three ways: first, amplitude energy makes deep structure display unclear; second, phase distortion introduces errors positioning underground structures; third, loss high frequency components reduces resolution. Therefore, it crucial fully consider absorption characteristics real Earth during modeling This paper aims develop an compensation reverse-time scheme heterogeneous viscoelastic We first utilize a novel with decoupled fractional Laplacians depict Earth’s behavior. Then, adaptive stable operator developed realize Several synthetic field data analyses verify effectiveness proposed method.