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南方山前带B区地震速度建模及偏移成像
Velocity model building and migration imaging in a foothill belt area
【摘要】 本文针对南方山前带B区某三维地震数据,采用自主研发的iCuster地震成像系统,将偏移速度分析、沿层统计速度分析和剩余速度分析相结合,通过递进式的建模技术流程提高了速度模型的精度,改善了叠前时间偏移成像质量。
【Abstract】 According to the characteristics of 3D seismic data in the Area B of a foothill belt in the Southern China,in the paper we use progressive velocity model building technique,combining migration velocity analysis with horizon-based statistics velocity analysis and residual velocity analysis from self-developed iCluster,a seismic imaging system,to improve the accuracy of the velocity model. This approach finally leads to an improvement of the prestack time migration image.
【关键词】 山前带;
速度建模;
沿层统计速度分析;
剩余速度分析;
偏移成像;
【Key words】 foothill belt; velocity model building; horizon-based statistics velocity analysis; residual velocity analysis; migration imaging;
【Key words】 foothill belt; velocity model building; horizon-based statistics velocity analysis; residual velocity analysis; migration imaging;
- 【文献出处】 石油地球物理勘探 ,Oil Geophysical Prospecting , 编辑部邮箱 ,2013年04期
- 【分类号】P631.4
- 【被引频次】5
- 【下载频次】116