提高泌阳凹陷深层系地震资料多次波压制效果的举措  

THE METHOD OF IMPROVING THE EFFECT OF SEISMIC MULTIPLE ATTENUATION FOR DEEP LAYER IN BIYANG DEPRESSION

作　　者：姚征[1] 顾汉明[1] 段洪友[2] 刘敏[3] 

机构地区：[1]中国地质大学地球物理与空间信息学院,武汉430074 [2]中石化河南油田石油勘探开发研究院,南阳473132 [3]华中师范大学出版社,武汉430070

出　　处：《工程地球物理学报》2006年第5期370-374,共5页Chinese Journal of Engineering Geophysics

摘　　要：多次波的存在影响地震成像的真实性和可靠性,干扰地震资料的解释．泌阳凹陷地区多次波问题突出,本文基于Focus地震资料处理系统中关于多次波压制的模块,对泌阳凹陷地震资料进行预测反褶积法、FK滤波法、拉冬变换法、剔除拟合法进行去多次波试验,试验结果表明,在压制多次波的同时保持一次波反射能量和提高信噪比极为重要,在保真的前提下,组合使用多种方法在泌阳凹陷深层系地震资料中具有长短周期特征的多次波压制中不失为可选途径。The existence of seismic multiple affects the reality and reliability of seismic imaging and interferes seismic interpretation. The multiples in Biyang depression are strong. Based on the modules of suppressing multiple in Focus seismic data processing system, this paper performs suppressing multiple processing test applying the prediction deconvolution, FK filtering, parabolic transform and deletion fitting method. The results of the test show that it is important to keep energy of primary reflection and raise S/N ratio in suppressing multiple. The joint use has a good effect in seismic multiple attenuation with short and long period features for deeplayer in Biyang depression.

关 键 词：多次波 预测反褶积 FK滤波 拉冬变换 剔除拟合 

分 类 号：P631.3[天文地球—地质矿产勘探]