2D长排列地震资料电缆羽角影响消除处理方法

Study on Elimination of Feathering Effects in 2D long Cable Seismic Data

2D长排列地震勘探在海洋物探工作中占有重要地位，但由于海上采集中电缆羽角不完全可控，电缆羽角对资料的影响随着羽角的增大而加大。一般的，后续处理对羽角的影响不作考虑，本文对电缆羽角的影响作了直观分析，并用3D的处理思路进行羽角校正，取得了良好的效果，同时指出了该处理方式的条件和影响因素。

To enhance seismic reflections in deep-sea area, it is necessary to increase the length of offset, channels and stack folds in seismic survey, but when offset is too long , the cable will depart from it＇ s designed position by the ocean current and cause cable feathering angle problem, and then effect the quality of seismic data processing if we use conventional 2D methods. After careful analysis and research on those techniques for marine 2D long-offset seismic exploration , the paper put forward some methods in 2D long-offset seismic data processing, such as apply some 3D methods, and concludes the applicability of these methods.