Wavefield separation for dual-sensor data with local handling of aliased energy
Wavefield separation for dual-sensor data with local handling of aliased energy
复制标题
通过混叠能量的本地处理实现双传感器数据的波场分离
DOI：
10.1190/1.3059112
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Petroleum Geo
中科院分区：
文献类型：
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作者：
T. Klüver;Petroleum Geo
双传感器拖缆不仅能够记录压力场，还能够记录粒子速度场的垂直分量。两个记录的适当组合产生了上行波场和下行波场的分离。在本文中，我回顾了双传感器流光的 2D 特定处理步骤背后的理论，并描述了它们对 3D 案例的扩展。我强调了与典型海洋采集几何形状相关的问题，即空间混叠，这在大型拖缆间隔的 3D 情况下最为严重，并提出了解决这些问题的数据处理解决方案。这种新方法旨在以局部方式处理空间混叠能量。我使用合成和现场数据示例演示了新技术。
A dual sensor streamer is capable of recording not only the pressure field but additionally the vertical component of the particle velocity field. A proper combination of both records yields the separation of up- and down-going wavefields. In this paper, I review the theory behind the dual-sensor streamer specific processing steps for 2D and describe their extension to the 3D case. I highlight problems related to typical marine acquisition geometries, namely spatial aliasing which is most severe in the 3D case for large streamer separations, and propose a data processing solution which addresses these problems. This new method is designed to deal with spatially aliased energy in a local way. I demonstrate the new technique using synthetic and field data examples.