Velocity-independent time-domain seismic imaging using local event slopes |

The hyperbolic model 1 is not accurate at large offsets in the
case of non-hyperbolic moveouts, caused by vertical or lateral heterogeneity,
reflector curvature, or anisotropy (Fomel and Grechka, 2001). One popular model for
describing non-hyperbolic moveouts was developed by Malovichko (1978) and has the
form of a shifted hyperbola
(de Bazelaire, 1988; Castle, 1994; Siliqi and Bousquié, 2000)

leads to the velocity-independent non-hyperbolic moveout equation

(12) |

(13) | |||

(14) |

One could estimate the function in practice by numerically differentiating the local slope field .

Velocity-independent time-domain seismic imaging using local event slopes |

2013-07-26