石油物探2011，Vol.50Issue(6)：565-574,10.DOI:10.3969/j.issn.1000-1441.2011.06.005
滑动扫描可控震源地震数据谐波干扰的消除方法
田新琦 1周彤 1王志明 1周辉2
作者信息
- 1. 中国石油化工集团公司国际石油工程有限公司,北京100020
- 2. 中国石油大学(北京),北京102249
- 折叠
摘要
Abstract
To improve the efficiency of acquisition, one vibrator group starts sweeping without waiting for the previous group's sweep to terminate,this is called "slip sweep". But this arrangement will generate harmonic noise in the previous shot record from the next shot and result in seismic data quality reduction. We analyzed the sweep signal in time-frequency domain and designed a harmonic separated operator by utilizing the correlated characteristics of harmonic distortion and fundamental signal. By applying this harmonic separated operator to the uncorrelated raw seismic data,high-order harmonic noise will be obtained. The comparison analysis of time-frequency maps between conventional record and harmonic noise removing record shows that the effect of this high-order harmonic noise attenuation method is effective.关键词
可控震源/滑动扫描/谐波畸变/谐波消除Key words
vibrator/ slip sweep/ harmonic noise distortion/ harmonic noise attenuation分类
天文与地球科学引用本文复制引用
田新琦,周彤,王志明,周辉..滑动扫描可控震源地震数据谐波干扰的消除方法[J].石油物探,2011,50(6):565-574,10.
