The paper presents the methods and steps of building 3-D migration velocity field with "Slice Method"on INTERBASE system of CGG.

本文介绍了在CGG的INTERBASE系统上用“切片法”建立三维偏移速度场的方法和步骤。

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For enhancing the migrated imaging, these techniques, like DMO, migration velocity field smoothing and pre-stack depth migration, are used.

采用DMO、偏移速度场平滑、叠前深度偏移等技术提高偏移成像精度。

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