全三维随机噪声衰减技术
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摘要
常规的随机噪声衰减技术（RNA）是使用一维空间预测算子，对三维地震资料按二维方式逐条测线进行处理。因而，它没有充分利用三维地震资料中更多的信号空间相干信息，未能实现真正的全三维随机噪声衰减。为此，本文以二维矩形预测算子代替常规RNA使用的一维预测算子，充分利用三维地震资料在相邻CDP面元上的空间相干信息，实现了三维地震资料的全三线去噪处理。
The usual random-noise attenuation techniques use 1-D prediction operator to process 3-D seismic data line by line in the same way as is taken in 2-D data process-ing,so that they fail to make full use of signal-coherent informations in 3-D seismic data, without real full 3-D random-noise attenuation. Hence, I take 2-D rectangular prediction operator instead of common-used l-D prediction operator to make full use of coherent informations in adjacent CDP bins in 3-D seismic data,thus achieving full 3-D noise attenuation in 3-D seismic data.
The usual random-noise attenuation techniques use 1-D prediction operator to process 3-D seismic data line by line in the same way as is taken in 2-D data process-ing,so that they fail to make full use of signal-coherent informations in 3-D seismic data, without real full 3-D random-noise attenuation. Hence, I take 2-D rectangular prediction operator instead of common-used l-D prediction operator to make full use of coherent informations in adjacent CDP bins in 3-D seismic data,thus achieving full 3-D noise attenuation in 3-D seismic data.
引文
1国九英.用f-x域预测技术清除随机噪声.石油地球物理勘探,1992,27(5):653～661
2俞寿朋.高分辨率地震勘探,石油工业出版社,1993
3李庆忠.走向精确勘探的道路,石油工业出版社,1993
4 Michael K C.应用三维空间预测滤波压制随机噪声,第 62届 SEG年会论文集,石油工业出版社,1993
2俞寿朋.高分辨率地震勘探,石油工业出版社,1993
3李庆忠.走向精确勘探的道路,石油工业出版社,1993
4 Michael K C.应用三维空间预测滤波压制随机噪声,第 62届 SEG年会论文集,石油工业出版社,1993
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