F-K域抗假频道内插  

Using anti-alias trace interpolation in F-K domain

作　　者：宜明理[1] 严又生[1] 魏新[1] 吕德林 汪德雯 

机构地区：[1]石油地球物理勘探局研究院地质中心,涿州072751 [2]中原石油勘探开发局,濮阳457001

出　　处：《石油物探》2001年第2期36-41,共6页Geophysical Prospecting For Petroleum

摘　　要：地震数据空间假频会对地震数据的处理和成象造成不利的影响。为了消除其影响 ,需要进行道内插 ,特别是VSP和井间地震反射波具有陡斜率的特点 ,因此 ,道内插去假频显得尤为重要。我们采用了F -K域抗假频道内插。F -K域道内插具有速度快、效率高的特点。本文给出了假频线性同相轴F -K域道内插方法的理论推导 ,并用理论数据和实际数据进行了验证 。The quality of processing and imaging for seismic data is impaired by the space aliasing present in the seismic data. To eliminate their impacts, it is necessary to carry out anti alias trace interpolation, especially for the reflected waves from VSP and cross hole seismic, because they are of steep slope, we use the anti alias trace interpolation in F-K domain. Trace interpolation in F-K domain is fast and efficient. The F-K domain interpolation algorithm for aliasing linear seismic events is presented in the paper. Verification with theoretical and real data indicates that the method is applicable.

关 键 词：地震勘探 道内插 F-K变换 空间假频 地震数据处理 

分 类 号：P631.443[天文地球—地质矿产勘探]