高密度双谱分析技术在LSH深水地震资料中的应用研究

Density Bispectrum Technique Applied to Deepwater Seismic Data Research in LSH

深水区的地震资料是采用长排列拖缆采集的,工区面积大,速度变化敏感,各向异性明显,传统人工速度分析技术不能满足工区的勘探开发需求,经研究,采用CGGVeritas的高密度双谱分析技术可以较好解决动校正问题,高效率高品质,提高了LSH深水地震资料的速度精度和密度,在全区得到推广应用,取得了很好的效果。

The seismic data in LSH deepwater area is collected by long arranged streamer, however, as the work area is large, the speed variation is sensitive and anisotropy is obvi- ous in the area, the traditional artificial velocity analysis can not meet the needs of explora- tion and development in this work area. Through the research of CGGVeritas＇s high density spectral analysis technique, it proves that this technique can better solve the problem of NMO correction and improve the speed accuracy and density of the deepwater seismic data with high efficiency and high quality. Therefore, the technique is applied widely to the whole area, and has achieved very good results.