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三维叠前时间偏移技术在高邮东部小断块构造成像中的应用

牟 荣
(中国石化江苏油田分公司物探技术研究院，江苏 南京 210046)
摘　要
 通过分析苏北盆地高邮东部小断块资料特点，对影响小断块成像的主要因素进行了仔细分析，重点对叠前时间偏移的地震数据准备和关键参数的合理选取，开展了研究试验，通过速度建模和优化，使HZ、CHB、WZH等三维叠前时间偏移处理剖面较常规三维叠后时间偏移处理有明显改善。
关键词 叠前时间偏移 高邮 小断块 速度建模
 



Application of 3D Prestack Time Migration to Structural

Imaging of Little Fault Block in the East of Gaoyou

Mu Rong
(Geophysical Prospecting Technology Research Institute of Jiangsu Oilfield
Subsidiary Company，SINOPEC Nanjing 210046)
[Abstract] Based on the seismic data from the east of Gaoyou in Subei Basin，this paper analyses the major factors that affect the structural imaging of little fault block，especially studies the methods of seismic data preparing and the key parameter selecting.3D prestack time migration processing is adopted in HZ，CHB，and WZH survey areas.Through building and optimizing the velocity model，the profiles obtained by using 3D prestack time migration processing are better than those using the conventional 3D poststack time migration.
[Keywords] prestack time migration；Gaoyou fault block；velocity model building



作者简介：牟荣，高级工程师，1983年毕业于华东石油学院石油地质专业，现就职于中国石化江苏油田分公司物探技术研究院，任院长职务。