Low-frequency upscaling in high-contrast media with application to TTI media

摘要: Summary In this paper, an extension of low-frequency upscaling methods to handle more complicated media is developed. Increased variability and anisotropy with a tilted symmetry axis (TTI) are now handled. We show that strong contrasts in elastic properties have dramatic effect on seismic regardless anisotropy. particular, the lowfrequency method (Stovas et al., 2013) developed for isotropic transversely does not work due discontinuities effective slowness surface. case, application new required. The vertical energy flux computed stack layers can be considered as AVO signature overburden. also defined TI medium. tested real dataset from Faroes-Shetland Basin.