复杂地区地震资料处理技术及效果分析  

Seismic Processing Technique in Complex Area and Application Effects Analysis

作　　者：曾庆才[1] 庄传飞[1] 李琛[1] 郑祝堂[1] 罗玲[1] 张道慈[1] 

机构地区：[1]河南石油勘探开发研究院,河南南阳473132

出　　处：《河南石油》2001年第5期4-7,共4页Henan Petroleum

摘　　要：巴彦浩特盆地地表大部分被沙漠和戈壁覆盖。地震原始资料的干扰波发育且能量较强，原始信噪比低，静校正量大。针对巴彦浩特盆地的复杂地表地震条件，首先在表层结构分析的基础上进行静校正方法的研究，然后依据合理的构造样式，采用叠前去嗓、优化迭代叠加、改进的ｆ－ｘ域预测去噪提高资料的信噪比和分辨率。利用文中的处理技术和手段，对巴彦浩特盆地新采集的地震资料和老资料重新处理后获得了较好的处理效果，为地质解释人员提供了较高信噪比的地震剖面。The surface of Bayanhaote basin is covered largely by desert and gobi. Interference waves are common in initial seismic data and have strong energy, original signal-noise ratio is low and the amount of static correction is large. In viewing of the complex surface seismic conditions in Bayanhaote basin, research on static correction methods was performed on the basis of surface structure analysis. Pit- stack noise elimination, iteration and stacking optimization and improved f-x domain predictive noise elimination were carried out to improve signal-noise ratio and resolution according to the rational structure styles. These processing methods and techniques were used to process both the newly acquired and the old seismic data in Bayanhaote basin. Seismic sections with high signal-noise ratio were achieved.

关 键 词：油气勘探 巴彦浩特盆地 复杂地表 构造样式 静校正 信噪比 地震剖面 

分 类 号：P618.13[天文地球—矿床学] P631.443[天文地球—地质学]