【摘要】 在P-SV转换波地震数据处理中,静校正一直是较难解决的问题,它会严重影响转换波地震资料的成像效果。前人对此研究了很多解决方法,但至今尚无公认的有效方法。对前人研究的转换波静校正方法进行了分类,然后对基于纵横波折射初至时差法、基于共接收点(CRP)转换反射横波法、基于面波反演横波速度法和基于微测井模型法四类转换波静校正方法进行了阐述,并对各类方法的优缺点和应用条件进行了归纳总结,对目前转换波静校正所面临的挑战进行了讨论,提出对多种单一的转换波静校正方法进行组合后分步消除静校正量的思路,这种思路能在转换波静校正中取得较好的应用效果。更多还原

【Abstract】 It was always difficult to solve the problem of static correction of converted P-SV wave in its data processing,which greatly affected its imaging.Many solutions were already studied,but there wasn’t admittedly an effective method to solve this problem.Static correction methods of converted P-SV wave studied by our predecessors who were classified in this paper.Then refraction first-break time difference method of P and SV wave,CRP method of reflected P-SV wave,shear velocity inverted by surface wave data and model method based on micro logging were discussed separately.At the same time,the advantages,disadvantages and application conditions of various methods were systematically summarized,and the challenges faced by the converted wave static correction were discussed.At last,the idea that a variety of single method were combined in order to eliminate the static correction step by step was presented,which may be effectively applied into real data.更多还原