复杂山地低信噪比地震资料处理方法  

Data processing methods for low signal-to-noise ratio seismic data from complex mountainous areas

作　　者：刘西宁[1] 刘司红[1] 杜贤[1] 张亚斌[1] 鲁延春[1] 

机构地区：[1]河南油田石油勘探开发研究院物探研究所,河南南阳473132

出　　处：《勘探地球物理进展》2004年第1期41-44,共4页Progress in Exploration Geophysics

摘　　要：宜阳复杂山地地震资料的特点是静校正量大,信噪比低。针对该区的特点,在资料处理中建立了全区统一浮动基准面,应用折射静校正方法解决静校正问题。运用叠前去噪技术、目标速度分析、DMO技术、优化迭代叠加技术、f-x域信号增强去噪技术,优化处理流程,精选处理参数,资料处理取得明显效果。Seismic data acquired in complex mountains in Yiyang area are characterized by low signal-to-noise ratio and large statics. To cope with these problems, we establish a floating datum in the whole area, and perform static correction with refraction static correction. Other methods used in the data processing include prestack noise elimination, velocity analysis for the targets, DMO, and optimally iterated stacking. With refinement of work flow and selected processing parameters, satisfactory results have been obtained.

关 键 词：信噪比 地震资料 处理方法 山地 静校正 信号增强去噪技术 

分 类 号：P631.44[天文地球—地质矿产勘探]