一种新的波场分离方法

A new approach to the wavefield separation

长庆石油勘探局物探处研究所, 吴忠751104

Geophysical Exploration Division, Changqin Oilfield, Wuzhong 751104

把相互干涉的波场分开, 是VSP数据处理的关键。本文根据地震波的传播方向及偏振特性, 首先在频率域提取地层参数, 然后在时间域加以波场分离, 收到了较好的效果。

Separating the interference wavefield is a key to the VSP data processing. In the paper,according to the propagation direction and the polarization feature of seismic data, we extract the formation param eters in frequency domain at first, and then conduct the wavefield separtion in time domain. Thus, a good result is obtained.