一种消除船干扰的处理方法

A method for Elimination of Noise due to Vessel Disturbance in Marine Seismic Record

陈金海 马建德 徐金祥

Chen Jinhai Ma Jiande Xu Jinqiang

上海海洋石油局

Shanghai Offshore Petroleum Bureau

针对海上地震资料,有时不可避免地受到其外来船只不同程度的船于抚。本文根据信号的可预测性和船干扰的不可预测性,提出在选前共偏移距域内应用F-X域预测技术,消除船干扰,提高信噪比。在实际的地震资料处理中,取得了明显的效果。

Hie passing-by vessels can unavoidably have more or less effect on S/N ratio in marine seismic record. According to predictability of signal and non-predictability of vessel disturbance, we present the prediction technique in F-X domain to eliminate noise due to vessel disturbance and improve S/N ratio in prestack common offset data. The field data processing have proved the method effective.