石油物探2018，Vol.57Issue(2)：237-247,11.DOI:10.3969/j.issn.1000-1441.2018.02.009
可控震源相关数据谐波干扰联合压制方法
Joint suppression of two types of vibroseis harmonic noise on correlated data
摘要
Abstract
Harmonic noise is a special interference wave generated in vibroseis acquisition.Harmonic noise contained in force signal differs from surface response harmonic noise;therefore,the corresponding harmonic suppression method is proposed for the two kinds of noise in correlated data.This paper proposes a filter based on the force signal to accurately suppress the harmonic noise contained in force signal.The least squares method is then adopted to correct the predicted harmonic noise.To suppress the surface response harmonic noise,frequency division filtering is used in CMP gathers,according to the energy and frequency distribution characteristics of this kind of harmonic.The proposed method is performed on correlated data,and could realize joint suppression of two types of vibroseis harmonic noise.Data from field tests indicate that the proposed method can effectively suppress the two kinds of harmonic noise.关键词
可控震源/力信号内含谐波/表层响应谐波/地面力信号/分频滤波Key words
vibroseis/harmonic noise contained in force signal/surface response harmonic noise/force signal/frequency division filtering分类
天文与地球科学引用本文复制引用
曲英铭,李金丽,李振春,李国磊,黄金强..可控震源相关数据谐波干扰联合压制方法[J].石油物探,2018,57(2):237-247,11.基金项目
中国石化地球物理重点实验室开放基金(wtyjy-wx2016-04-1)资助.This research is financially supported by the Open Funds of SINOPEC Key Laboratory of Geophysics (Grant No.wtyjy-wx2016-04-1). （wtyjy-wx2016-04-1）
