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伪多道匹配滤波技术及其在地震数据匹配中的应用

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不同油田区块、不同时期地震数据受采集参数的影响,存在振幅、频率、相位和到时等差异,匹配滤波是消除这些差异的关键技术之一.笔者给出了伪多道匹配滤波技术,相对传统方法,可以对地震数据之间的振幅、频率、相位和到时差异进行更好地调整,改进地震数据的匹配效果.然后对该方法的原理进行了系统介绍,基于单道地震数据对该方法进行了测试,并对不同震源采集地震数据进行了匹配拼接处理.最后基于互相关、时频分析等手段对拼接前后数据的一致性进行了分析,验证了方法的优势.
Pseudo-multichannel matching and its application in seismic data matching
Due to the differences in acquisition parameters of seismic data in different oil fields,there are differences in am-plitude,frequency,phase time,etc.Matched filtering is one of the key technologies to eliminate these differences.This paper presents the pseudo-multi-channel matching filter technology,which can better adjust the amplitude,frequency,phase and ar-rival time differences between seismic data in different working areas and improve the matching effect of seismic data.The principle of the method is introduced systematically,and the method is tested and analyzed based on single-channel seismic da-ta.This method matches and stitches two seismic datasets acquired by different sources.Finally,the consistency of the data before and after stitching is analyzed using cross-correlation and time-frequency analysis,and the advantages of the method are verified.

match filterpseudo-multi-channeldifferenceconsistence analysis

李书瑜、鲍伟、王士昆、王雪静、付嘉玮、马继涛

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中石化江苏油田物探研究院,南京 211103

中国石油大学(北京)地球物理学院物探系,北京 102249

匹配滤波 伪多道 差异 一致性分析

2024

物探化探计算技术
成都理工大学 中国地质科学院物化探研究所

物探化探计算技术

CSTPCD
影响因子:0.398
ISSN:1001-1749
年,卷(期):2024.46(3)
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