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涌浪静校正技术在海洋单道地震资料处理中的应用
引用本文:李丽青,徐华宁,舒虎.涌浪静校正技术在海洋单道地震资料处理中的应用[J].物探与化探,2007,31(4):339-343.
作者姓名:李丽青  徐华宁  舒虎
作者单位:广州海洋地质调查局,广州市1180#资料处理研究所,广东,广州,510760
摘    要:分析了海洋地质调查单道地震资料中存在的同相轴跳动、记录延时、记录提前等问题,指出浪涌是造成同相轴跳动的重要原因,提出利用涌浪静校正技术解决问题的思路,即利用互相关统计法,计算涌浪对每道造成的时移量,作为静校正量,以消除地震剖面上同相轴抖动现象。根据涌浪静校正的原理将地层分为3类:平滑型、起伏型和崎岖型,针对不同类型地质条件进行了关键参数的试验。结果表明,对于平滑型、起伏型地层互相关统计法有良好的效果;对于崎岖型,效果较差,需要慎重使用和选取处理参数。笔者给出关键参数的选取原则和应用静校正技术中应注意的事项。

关 键 词:静校正  地表一致性  互相关函数  时间位移
文章编号:1000-8918(2007)04-0339-05
修稿时间:2007-02-08

THE APPLICATION OF THE WAVE STATIC CORRECTION METHOD TO MARINE SINGLE-CHANNEL SEISMIC DATA PROCESSING
LI Li-qing,XU Hua-ning,SHU Hu.THE APPLICATION OF THE WAVE STATIC CORRECTION METHOD TO MARINE SINGLE-CHANNEL SEISMIC DATA PROCESSING[J].Geophysical and Geochemical Exploration,2007,31(4):339-343.
Authors:LI Li-qing  XU Hua-ning  SHU Hu
Institution:Guangzhou No. 1180 Institute of Data Processing, Guangzhou Marine Geological Survey, Guangzhou 510760, China
Abstract:The single-channel seismic data from marine regional geological survey have some problems such as time shift between traces, recording delay due to changed seafloor depth, and pre-recording due to software. The authors tried to remove the time shift by using the wave static correction method, which is based on the cross-correlation function. Several parameters are very important to the effect of the static correction. This paper classified the strata into three types based on their structures. Tests of key parameters were made on different structures, showing good results of static correction. The choice of proper parameters for different structures are discussed in this paper, and some useful suggestions are put forward for the purpose of making good use of residual static correction.
Keywords:static correction  surface consistence  cross-correlation function  time shift
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