一种简易的频率补偿方法

A simple frequency compensation method

对地震记录道进行微分，相当于用一个频率特性为iω的滤波器进行滤波。这种滤波器的振幅特性与其圆频率ω成正比，可用以补偿地震波在介质中傅播时高频成分衰减快的缺欠。在实际地震资料处理过程中，采用这种振幅恢复方法可使处理前、后各层的能量基本上保持一致。用上述方法对大港油田FHD油藏的部分三线地震剖面进行处理后，下第三系以下各反射层的分辨率均有显著的提高，收到了满意的效果。

Differential of seismic trace functions as filtering of a filter whose characteristic frequency is i. Its amplitude property is directly proportional to the circular frequency to,and can be used to compensate the fast attenuation of high frequency seismic waves in medium. So the amplitude recovery method makes the processed seismic energies in each layer remain nearly the same as before.Part 3D seismic data from FHD reservoir in Dagang oil field were processed by using this method ；as a result, the reflection horizons under the Tertiary system were greatly improved in resolution,bringing satisfactory result.