论文详情

独立同步激发数据两步法邻炮干扰压制技术研究

石油物探

2012年 51卷第No. 5期

阅读：86

Title

Two-step suppressing method for neighboring-shot interference by using vibroseis independent simultaneous shooting data

单位

中国石油天然气集团公司东方地球物理勘探公司采集技术支持部，河北涿州072751

Organization

Huang Mingzhong,Acquisition Technology Support Department,BGP,CNPC, Zhuozhou 072751, China

摘要

地震资料品质在很大程度上取决于覆盖次数的高低，而覆盖次数的提高必然会带来勘探成本的增加。为了解

决这一难题，以可控震源独立同步激发(ISS)为代表的新一代高效采集技术得到了推广应用，极大地提高了生产效率

。但ISS技术会产生很强的邻炮干扰，需要在资料处理中予以压制。较详细地分析了ISS资料邻炮干扰的特点和分布

规律，发现邻炮干扰在不同道集中有不同的表现形式，因此需要进行多域分步压制。通过资料分析和处理试验，

提出了两步法压制邻炮干扰的处理流程，即分别采用强振幅分频压制技术和中值滤波技术来实现ISS数据中邻炮干

扰的压制，并在实际资料处理中得到了很好的应用效果。

Abstract

Quality of seismic data depends on the fold to some degree.Higher fold means higher cost.In order to solve this

problem,vibroseis independently simultaneous shooting (ISS),as a representative of high-productivity acquisition

techniques,has been widely used.However,ISS may cause strong neighboring-shot interference,which should be suppressed in

data processing.We analyzed the characteristics of ISS neighboring-shot interference and its distribution in detail,and

discovered that neighboring interference changes via the gathers.So multi-domain multi-step de-noising should be carried

out.By data analysis and processing testing,a two-step suppressing method was proposed,that is by separately adopting

strong-amplitude frequency-division suppressing and median-filtering technique to suppress the neighboring-shot

interference.A good result has been achieved in actual application.

关键词：

高效地震采集; 独立同步激发; 邻炮干扰; 分频压制; 中值滤波;

Keywords:

high-efficiency acquisition; independent simultaneous shooting; neighboring-shot interference; frequency-division

suppressing; median filtering

;

基金项目

DOI

10.3969/j.issn.1000-1441.2012.05.007