摘要
由于多次波一直是常规地震资料处理中常见的干扰波,地表及地下结构的变化,多次波的周期、频率、分布规律等具有多变性,并且常常和一次有效反射波相干涉,使地震剖面出现假的地质现象,进而影响对剖面的解释。提出利用反射波与多次波的正常时差的差别来压制多次波和基于求取多次波模型之后从原始资料中减去多次波的方法来衰减多次波,其中利用反射波与多次波的正常时差的差别来压制多次波的方法对压制多次波的衰减较为理想。
The multiple reflection waves, being a noise in interpretation of seismic data, varies very much in periods, frequencies and distribution patterns as the textures on the surface and under the ground change. The multiple reflection waves often interference with the single reflected wave which is useful, which may lead to pseudo-phenomena on the profiles. The author considered that removing the multiple reflection waves through their difference on arrival times is effective and fruitful.
出处
《资源环境与工程》
2007年第2期178-180,共3页
Resources Environment & Engineering
关键词
多次波
干扰波
识别
压制
衰减
multiple reflection wave
noise wave
recognition
suppression
decay