频率—慢度域中的地震多次波的压制

英文篇名：ATTENUATING THE SEISMIC MULTIPLES IN FREQUENCY-SLOWNESS DOMAIN
中文刊名：工程地球物理学报
英文刊名：Chinese Journal of Engineering Geophysics
作者：刘书会
英文作者：LIU Shu-hui (Geological Scientific Research Institute of Shengli Oilfield Company Limited ; Shangdong Dongying 257071 ; China)
中文关键词：多次波 ; 频率慢度域 ; 压制
英文关键词：attenuating the multiples ; frequency-slowness domain ; marine seismic
出版日期：2004-06-25
机构：胜利油田有限公司地质科学研究院山东东营257071
年：2004
期：03
出版单位：工程地球物理学报

摘要

多次波是地震反射波记录上一种常见的干扰波 ,常规多次波压制方法不适应于时差较小的近偏移距的多次波压制 ,本文是将Lokshtanov等人提出的原理 ,推广到多个强反射层面和二维介质的情况 ,在频率—慢度域导出了二维介质多次波压制因子 ,通过对合成记录及实际采集资料进行了试算 ,结果表明文中所提出的方法可以较为有效地压制纯水层多次波与短程层间多次波。
Multiple reflection is one of interfering waves in seismic data. Conventional methods are not suitable for under small move-out and small offset. The principle proposed by Lokshtanov can be extended to multi-strength reflected interfaces and two dimension media in this paper. The factor of attenuating the multiples can be derived in frequency-slowness domain in two dimension media. The results of applying this factor to synthetic record and field seismic data show that the method can effectively attenuate pure-water-layer multiples and peg-leg multiples in marine seismic reflection data.

引文

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