地震干涉偏移在随钻地震资料处理中的应用  

Application of seismic interferometric migration in Seismic While Drilling (SWD) data processing

作　　者：杨文军[1] 孙福利[2] 黄伟传[2] 

机构地区：[1]中国地质大学,北京100083 [2]中国科学院地质与地球物理研究所,北京100029

出　　处：《地球物理学进展》2011年第2期602-605,共4页Progress in Geophysics

摘　　要：地震干涉偏移是新发展起来的地震成像方法,它是在地震干涉理论基础上进行的成像处理.地震干涉偏移不需要速度模型,算法快捷,能够解决某些特殊条件下的地震成像问题,具有消除震源子波影响和提高分辨率的优点.本文结合实际工区F158随钻地震资料,通过反褶积干涉处理,得到高分辨率高信噪比的记录,然后进行了干涉偏移成像.通过与实际地震剖面对比分析,证明了干涉偏移是一种非常有效的成像方法.Seismic interferometric migration is recently developing seismic imaging method that is based on the theory of seismic interferometric. It does not need velocity model and this method is faster than those conventional migrations. Not only this method can resolve the imaging problems under some special conditions but it can eliminate the affect of seismic source wavelet and improve the resolution In this paper, the real Seismic While Drilling data in the F158 zone is processed with deconvolution interferometric method, then we obtained the records with high S/N and resolution. At last, the previous results are interferometric migration processed. Compared to the true seismic section, it is proved that seismic interferometric migration is an effective imaging method.

关 键 词：随钻地震 地震干涉 偏移 虚拟炮集 

分 类 号：P631[天文地球—地质矿产勘探]