AVO简化方程的物理意义及其在油气识别中的应用  

THE PHYSICAL MEANING OF AVO REDUCED EQUATIONS AND ITS APPLICATION IN THE OIL EXPLORATION

作　　者：程冰洁[1] 张玉芬[2] 

机构地区：[1]中国地质大学研究生院,湖北武汉430074 [2]中国地质大学地球物理系,湖北武汉430074

出　　处：《物探化探计算技术》2003年第1期26-30,共5页Computing Techniques For Geophysical and Geochemical Exploration

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 Pwave 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.

关 键 词：振幅随炮检距变化 ZOEPPRITZ方程 反射系数 地震记录 油气识别 反射系数 

分 类 号：P618.130.8[天文地球—矿床学] P631.4[天文地球—地质学]