浅谈地震资料处理中的提高信噪比处理技术  

Briefly talk about processing techniques of improving S/N ratio in seismic data processing

作　　者：苑益军[1] 周芝旭[2] 牛滨华[1] 王焕弟[1] 刘爱香[3] 

机构地区：[1]中国地质大学(北京)地球物理与信息技术学院,北京市海淀区学院路29号100083 [2]中石化江汉油田物探处 [3]华北油田物探公司

出　　处：《石油地球物理勘探》2005年第2期168-171,共4页Oil Geophysical Prospecting

摘　　要：地震资料的信噪比及分辩率是地震资料处理中的最基本问题。提高地震资料信噪比的关键技术环节为:1压制噪声,突出有效信号;2力求实现同相叠加;3处理好分辨率与信噪比的关系。针对上述关键技术环节,文中从噪声分类、干扰波压制、噪声衰减、同相叠加等方面论述了提高信噪比处理中的几项关键技术,比较了每种去噪方法的优缺点及适用条件,对部分方法在使用中的参数选择做了描述。最后,通过实例说明,针对不同类型的噪声。The S/N ratio and resolution of seismic data are most basic issues of seismic data processing.The key techniques of improving S/N ratio of seismic data are follows:①suppressing noise and highlighting useful signal;②making efforts to fulfill in-phase stack;③better handling the relation between resolution and S/N ratio.In view of above-mentioned key techniques,the paper expounded some key techniques of improving S/N ratio processing in following aspects:arranging noises under categories,interference suppression,noise attenuation and in-phase stack etc,compared advantages and disadvantages and adaptive conditions of different noise-eliminated methods and describe the selection of used parameters in part of methods.Finally,it is shown by the cases that it should use different noise-eliminate methods when the noises are different.

关 键 词：地震资料处理 高信噪比 处理技术 技术环节 同相叠加 去噪方法 有效信号 噪声衰减 关键技术 参数选择 分辩率 分辨率 干扰波 优缺点 压制 

分 类 号：P631.443[天文地球—地质矿产勘探] TP368.3[天文地球—地质学]