基于预测反褶积的海底鸣震压制方法

详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文

英文篇名：A METHOD TO REDUCE SEA BOTTOM REVERBERATIONS BASED ON PREDICTIVE DECONVOLUTION 中文刊名：海洋地质前沿 英文刊名：Marine Geology Frontiers 作者：朱伟强 ; 王彦春 ; 莫延刚 ; 牟凤鸣 英文作者：ZHU Weiqiang1 ; 2 ; WANG Yanchun1 ; MO Yanguan2 ; MOU Fengming2 (1 China University of Geosciences ; Beijing 100083 ; China ; 2 Geophysical Exploration and Development Corporation of Shengli Oil Field ; Sinopec ; Dongying 257100 ; Shandong ; China) 中文关键词：地震勘探 ; 预测反褶积 ; 海底鸣震 英文关键词：seismic exploration ; predictive deconvolution ; sea bottom reverberations 出版日期：2011-11-28 机构：中国地质大学;中国石化胜利石油管理局物探公司; 年：2011 期：11 出版单位：海洋地质前沿

摘要

多次波问题是海洋地震勘探中最突出的问题之一,多次波的存在影响地震成像的真实性和可靠性,干扰地震资料的解释。尤其在海底起伏不平时的鸣震干扰,至今还没有很有效的办法。研究提出的两步法预测反褶积压制海底鸣震方法,就是利用基于精细海底调查的结果获得预测步长或由直达波、折射波反演求取预测步长,在共炮点域和共检波点域分别应用预测反褶积来压制海底鸣震。该技术在理论和实际记录上均有很好的效果。
Multiple reflection is one of the most prominent problems in marine seismic survey.The existence of the multiple reflection affects the reliability and authenticity of seismic imaging as well as the interpretation of seismic data.So far there have been no effective methods to reduce the reverberations especially where the sea-bottom is rough.Two-step predictive deconvolution raised in this article is a method used for reducing the sea bottom reverberations,this method acquires a predicted distance from the results of fine investigation of sea bottom,or from the inversion of direct or refracted waves.Then we reduce the sea bottom reverberations by predictive deconvolution in both common-shot domain and common-receiver domain.It is very effective both in theory and practical record.

引文

[1]宋玉龙.滩浅海地区地震勘探存在问题及其解决方法[J].石油物探,2005,44(4):343-347.
    [2]赵保宗,孙永清,李学聪.基于波动方程的多次波压制方法应用研究[J].地球物理学进展,2010,25(1):272-281.
    [3]陈金海,周国良,徐金祥.虚反射和海底鸣震干扰的消除[J].海洋石油,2000,20(3):34-42.
    [4]Verschuur A J,Berkhout A J.Estimation of multiple scat-tering by iterative inversion,Part II:Practical aspects andexamples[J].Geophysics,1997,62(12):1 596-1 611.