非目标因素对AVO属性叠加的影响

英文篇名：INFLUENCE OF AIMLESS FACTORS ON AVO ATTRIBUTION SU-PERIMPOSITION
中文刊名：西南石油学院学报
英文刊名：Journal of Southwest Petroleum Institute
作者：雷晓 ; 杨凯
英文作者：Lei Xiao Yang Kai (Dept. of oil Exploration)
中文关键词：地震数据处理 ; AVO属性叠加 ; 非目标因素 ; 随机噪声 ; 剩余时差
英文关键词：Seismic data processing ; AVO attribution superimposition ; Aimless factors ; Random noise ; Residual time difference
出版日期：1993-07-02
机构：西南石油学院石油勘探系 ,西南石油学院石油勘探系
年：1993
期：02
出版单位：西南石油学院学报

摘要

除了泊松比外,有不少非目标因素会引起振幅随炮检距变化,在AVO属性叠加图上能直观看到它们的影响。AVO的抗干扰性能远低于水平叠加,那些振幅或时差随炮检距单调变化的因素会引起严重的假AVO异常,因此利用AVO方法时,需要作特别精细的叠前处理。
Besides Poisson's ratio there are quite a few aimless factors which can cause AVO. One can see their effect directly from diagraphs of AVO attribution superimposition. Anti-inter- rupted ability of AVO is far smaller than horizontal stack. Factors which are of monotonous variation of amplitude and time shift with off-set can form serious spurious anomalies. It is even bigger than those caused dy poisson's ratio so AVO needs peculiar meticulous processing before stack.

引文

1． M.格劳尔等.地震岩性学.石油工业出版社,1987
    2． Backus, M M. Amplitude Versus Offset:A Review. 57th Annual SEG Meeting.
    3． Spratt, S. Effect of Normal Moveout Errors on Amplitude Versus offset-Derived Shear Reflecty . 57th Annual SEG Meeting
    4． Luh,P. C. Wavelet Dispersion and Bright Spot Detection . 58th Annual SEG Meeting
    5． Gassway, G. S. etc. Pitfalls in Seismic Amplitude Vs . offset Analysis: Case History. 18th OTC Meeting