AVO简化方程的物理意义及其在油气识别中的应用

英文篇名：THE PHYSICAL MEANING OF AVO REDUCED EQUATIONS AND ITS APPLICATION IN THE OIL EXPLORATION
中文刊名：物探化探计算技术
英文刊名：Computing Techniques for Geophysical and Geochemical Exploration
作者：程冰洁 ; 张玉芬
英文作者：CHENG Bingjie1 ; ZHANG Yufen2(1. Graduate School ; China University of Geosciences ; Wuhan Hubei430074 ; China2. Department of Geophysics ; China University of Geosciences ; Wuhan Hubei430074 ; China)
中文关键词：振幅随炮检距变化(AVO) ; Zoeppritz方程 ; 反射系数 ; 地震记录
英文关键词：Amplitude versus offset(AVO) ; Zoeppritz′s equation ; reflection coefficient ; seismic recording
出版日期：2003-02-28
机构：中国地质大学研究生院,中国地质大学地球物理系湖北　武汉　430074 ,湖北　武汉　430074
年：2003
期：01
出版单位：物探化探计算技术

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.

引文

[1]　郑晓东.Zoeppritz方程的近似及其应用[J].石油地球物理勘探,1991,26(2):129.
    [2]　YanghuaWang.ApproximationstotheZoeppritzequationsandtheiruseinAVOanalysis[J].Geophysics,1999,64(6):1920.
    [3]　刘怀山.AVO技术在采集参数设计中的应用[J].石油地球物理勘探,1993,28(增刊2):98.
    [4]　姚姚,詹正彬,钱绍湖.地震勘探新技术与新方法[M].北京:地质出版社,1991.
    [5]　ShueyRT.ASimplificationoftheZoeppritzequations[J].Geophysics,1985,50(5):609.
    [6]　AkiKI,RichardsPG.QuantitativeSeismology-theoryandmethod[M].W.H.FreemanandCompany,1980.
    [7]　HiltermanF.SeismicLithology[M].SEG-continuingEducation,1983.
    [8]　汪恩华.适用于AVO分析的层状介质反射系数公式及模型计算[J].石油地球物理勘探,1991,26(4):424.
    [9]　赵改善.二维起伏状模型的纵模波AVO模拟[J].石油地球物理勘探,1991,26(4):419.