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衰减多次波的几种方法 被引量:8

METHODS TO ATTENUATE MULTIPLES
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摘要 针对海上长周期多次波严重影响地震资料处理质量,通过自相关分析等手段确定多次波的性质和选取处理参数,通过优化预测反褶积参数,使用二维滤波,τ-p变换和中值叠加等手段基本上可以消除短周期和长周期多次波,对存在严重多次波的两条测线,采用一般处理流程的叠加剖面和采用衰减多次波方法后的叠加剖面比较,可以证明处理方法的有效性。 At present ,the quality of offshore seismic data process is seriously influenced by long period multiple waves. The paper applies several analytic methods,especially autocorelation, to determine the multiple characteristic,which helps to choose suitable process parameters. Then, after the optimized predictive deconvolution parameters are set and seismic data are processed with such methods as F-K filter, τ-P transform median stacking,short period and long period multiple waves are basically suppressed. Finally, there are different results by using traditional methods and the writer's demultipled methods to two seismic data lines with many multiples. The paper proves the validity of these processing methods.
作者 张洪昌
出处 《中国海上油气(地质)》 1996年第4期261-265,共5页 China Offshore Oil and Gas(Geology)
关键词 衰减多次波 方法 自相关 中值叠加 地震勘探 autocorrelation median stacking
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参考文献1

  • 1曹景忠,汪惟成,展文宇.Tau-P变换及其初步应用[J]石油地球物理勘探,1985(04).

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