纵波VTI介质理论与应用研究

Research on P-wave theory in VTI media and its application.

羊屋三维处理、解释一体化方法研究组 .纵波 VTI介质理论与应用研究 .石油地球物理勘探 ,2 0 0 2 ,37(3) :2 6 7～ 2 75 近年来国际上关于各向异性的研究文章发表较多 ,也报道了一些成功的应用实例。本文通过国内一块三维资料的处理与解释 ,发现 VTI各向异性问题对实际地震成像存在较大的影响。本文基于 Alkhalifah(1997)提出的 VTI各向异性介质的成像理论 ,研究了如何求取 P波反射资料的各向异性速度和叠加成像问题。出于完整性的考虑 ,文中对各向异性研究的发展过程 ,以及本次处理涉及的基本理论做了简要的介绍。

There are many papers about anisotropy published abroad in recent years and also successful applied cases to be published.Through processing and interpretation of 3 D data at home,the paper discovered that VTI anisotropy has a big impact on real seismic imaging.Based on imaging theory of VTI anisotropic media proposed by Alkhalifah(1997),the paper studied how to calculate the anisotropic velocity of P wave data and stack for imaging.Considering the completeness,the paper briefly introduced the developing process of anisotropic research and the basic theory related to used methods of this processing.