摘要
大地滤波作用不仅引起高频成分的迅速衰减，而且造成子波相位特征的畸变。要进行高分辨率地震资料的处理；必须对上述衰减和频散进行补偿。本文采用李氏经验公式计算的衰减因子Q值，提出一种具有空变和时变特性的Q值补偿方法。补偿处理是在单道上进行的，可以是动较正后的叠前道，也可以是叠后道，使用非常方便。
Earth filtering effect rapidly attenuates high frequency contents and distortswavelet phase characteristics. Desirable processing of high resolution seismic datamust need compensation for the attenuation and frequency dispersion. By using theattenuation factor Q that is derived from Li's empiric formula, I put forward the Qcompensation method which is characterized by time and space variations. Thecompensation processing is performed on a single trace, which may be a prestacktrace after NMO correction or a post-stack trace. The method is convenient.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
1996年第3期442-447,共6页
Oil Geophysical Prospecting
关键词
衰减
频散
补偿
地震数据处理
地震勘探
attenuation, frequency dispersion, compensation, high resolutionexploration, seismic data processing
