摘要
地震反射振幅随炮检距变化研究(AVO)的基本原理是反射系数随入射角的变化而变化。这里从精确的Zoeppritz方程出发,根据Shuey及Hilterman提出的P-P波反射系数计算公式,设计多层地质模型进行AVO正演模拟并合成地震记录,利用地震记录对比讨论了Shuey及Hilterman的简化方程各项的物理意义及其在不同入射角范围内对地震记录的贡献。
The Amplitude Versus Offset(AVO) analysis is that the reflection coefficient of waves varies with the incident angle. With the use of exact Zoeppritz′s equation, two simplified equations(including Shuey(1985) and Hilterman) which are widely used in present seismic exploration are derived. A multiayer parametric model is designed, then AVO forward modeling for Pwave of the model is made. According to the seismic recording, I discuss the differences of Shuey equation and Hilterman equation, explaining how the three items of the equations make contribution to the seismic reflection recording for the different incident angles.
出处
《物探化探计算技术》
CAS
CSCD
2003年第1期26-30,共5页
Computing Techniques For Geophysical and Geochemical Exploration
