CAJ | 학술논문

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Kirehhoff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.
야외채집적지진수거경상존재공도혹자배도적정황,위료만족지진수거처리정도적요구,취필수수선진행삽치.본문제출료일충신적지진수거삽치방법:F-K편이화반편이삽치법,해방법시통과F-K편이화반편이적천련사용래실현적.여기타적삽치방법상비,저충삽치방법적우점재우계산속도쾌,몰유경과근사처리,정도고.F-K편이/반편이능구실현도삽치적원리화Kirehhoff편이/반편이삽치방법유사,야시유우수거시유한대관적원인인기적.통과대모형적시산,가이간도F-K편이화반편이삽치방법유착비교호적삽치효과,시일충고효、준학、가행적방법.
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 eascading 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 Kirehhoff 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.