P-wave Nonhyperbolic Moveout Velocity Analysis in Transversely Isotropic Medium

摘要

With the development of seismic exploration, the exploration targets have already turned from structural reservoirs to subtle reservoirs step by step. NMO velocity and Amplitude Versus Offset (AVO) analysis of subtle reservoirs represent anisotropy generally, so it becomes more and more important to study the propagation law of seismic-wave in anisotropic medium. Velocity analysis is one of key steps in seismic data processing , its precision has direct impact on the effects of the following steps, such as NMO correction, statistic correction, imaging and migration. So how to improve the accuracy of velocity analysis in anisotropic media becomes the key problem for geophysicists pursuing on either method study or data processing.