摘要
野外采集的地震数据经常存在空道或者坏道的情况,为了满足地震数据处理精度的要求,就必须首先进行插值.本文提出了一种新的地震数据插值方法:F-K偏移和反偏移插值法,该方法是通过F-K偏移和反偏移的串联使用来实现的.与其他的插值方法相比,这种插值方法的优点在于计算速度快,没有经过近似处理,精度高.F-K偏移/反偏移能够实现道插值的原理和Kirchhoff偏移/反偏移插值方法类似,也是由于数据是有限带宽的原因引起的.通过对模型的试算,可以看到F-K偏移和反偏移插值方法有着比较好的插值效果,是一种高效、准确、可行的方法.
It should be performed to interpolate missing seismic traces in order to meet the requirement of processing precision because seismic data acquired in the field often have missing traces or bad traces. This paper presents a new interpolation method for seismic data called F K migration and demigration interpolation that is achieved by cascading F-K migration and demigration. Comparing with other interpolation methods,the virtue of this method lies in higher computation speed,no approximate processing and high precision. The principle of F-K migration and demigration interpolation resembles Kirchhoff migration and demigration interpolation,that is also because of band limited data. It can be seen that F-K migration and demigration interpolation has good interpolation result and is highly efficient, precise,and feasible as shown by calculations on model data.
出处
《地球物理学进展》
CSCD
北大核心
2009年第6期2020-2029,共10页
Progress in Geophysics
基金
中国科学院知识创新工程重要方向项目(KZCX2-YW-101)资助
关键词
F—K偏移
F-K反偏移
映射
倏逝波
F-K migration, F K demigration, mappin g, evanescent wave
