文章摘要信息--变速介质条件下三维叠前深度偏移成像及应用效果 关键词 ： 三维 叠前偏移 速度 模型 介质 [gap=1757]Keywords : 3D, Prestack migration, Velocity, Model, Media
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... migration area 运移范围 migration before stack 叠前偏移 migration circle 运移范围 ...
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常速叠前偏移 constant-velocity prestack migration
与速度无关的叠前偏移 velocity independent prestack migration
叠前时间偏移 PSTM ; pre-stack time migration ; TIKIM
叠前深度偏移 PSDM ; prestack depth migration
叠前部分偏移 partial pre-stack migration ; prestack partial migration
叠前真偏移 true migration before stack
三维叠前深度偏移 D prestack depth migration
转换波叠前深度偏移 converted wave prestack depth migration
共接收点倾斜叠加波动方程偏移，本质上是一种叠前偏移方法。
Wave equation migration after common receiving point slant stacks (WEMCRPSS) is essentially a prestack migration method.
近些年出现了旨在提高叠前偏移计算效率的多种非共炮记录的偏移方法。
In recent years, people have developed several migration techniques which don't use common-shot records in order to improve computational efficiency for pre-stack migration.
试验结果表明，随着应力波数量的增加，叠前偏移剖面能够反映的缺陷区域更广，成像更加清晰。
Results show that with the increase of the number of stress wave, the clear imaging region became broader and the image of the defect became clearer.
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