摘要
本文在简明阐述地震干涉理论及相关算法的基础上,结合随钻地震数据处理的特点,开展了地震干涉处理和偏移成像方法的研究。通过对胜利油田Fan158井随钻地震数据进行频率波数域滤波、干涉和垂直叠加处理,从强噪声背景下提取了钻头激发的有效信号,并对该数据进行了Kirchhoff和自相关偏移成像处理。再结合工区地面地震资料,对剖面的波组特征进行了分析,结果表明,应用反褶积干涉处理和自相关偏移成像均取得较好效果。
After brief review of the interferometry theory and relative algorithm,this paper focuses on the discussion of seismic interferometry processing and migration imaging with seismic whiling drilling(SWD) data.Seismic information excited by the drilling bit is extracted from strong noise data by F-K filter,interferometry and vertical stacking process.And then it is well imaged by Kirchhoff migration and autocorrelation migration.Combined with surface seismic stack sections around Well Fan158 in Shengli Oilfield,characteristics of wave groups of SWD imaye are analyzed.Results show that deconvolution interferometry and auotcorrelation migration work pretty well in SWD data process.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2012年第1期32-36,188+193,共5页
Oil Geophysical Prospecting
基金
国家"863"计划项目"随钻地震技术研究"(2006AA06A108)资助
关键词
地震干涉
随钻地震
Kirchhoff偏移
自相关偏移
反褶积干涉
seismic interferometry,seismic whiling drilling,Kirchhoff migration,autocorrelation migration,deconvolution interferometry
