剩余动校正量的拾取与消除
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摘要
王洪瑞，陈德刚，周开明，剩余动校正量的拾取与消除．石油地球物理勘探，1997，32（6）：872～877为了克服剩余动校正量对降低地震记录分辨率的影响，本文在叠加记录上利用向前向后预测建立模型道，按最大相似系数准则求取剩余动校正量，然后采用Butterworth滤波器进行滤波插值来完成高精度动态拉伸校正，从而消除剩余动校正的影响，保持了地震记录的原有分辨率，并使叠加过程中产生的噪声得到衰减。理论模型试算与实际应用表明，该方法的处理效果良好。
To remove the bad influence of residual normal moveout upon seismic data res-olution, we put forward a method which takes the following steps: Derive the model trace from stacked seismic traces by doing forward and backward predictions. Estimate residual normal moveout according to the maximum similarity coef-ficients criterion. Eliminate dynamic correction stretch by making filtering interpolation with the use of Butterworth filter, so that we remove the bad influence of residual nor-mal moveout, recover the original resolution of seismic data,and attenuate the nois-es which have resulted from stacking processing. Teoretical and real results show that the method brings satisfactory effect.
To remove the bad influence of residual normal moveout upon seismic data res-olution, we put forward a method which takes the following steps: Derive the model trace from stacked seismic traces by doing forward and backward predictions. Estimate residual normal moveout according to the maximum similarity coef-ficients criterion. Eliminate dynamic correction stretch by making filtering interpolation with the use of Butterworth filter, so that we remove the bad influence of residual nor-mal moveout, recover the original resolution of seismic data,and attenuate the nois-es which have resulted from stacking processing. Teoretical and real results show that the method brings satisfactory effect.
引文
1俞寿朋.高分辨率地震勘探,石油工业出版社,1993
2程乾生.信号数字处理的数学原理,石油工业出版社,1979
3陈殿卿.相干和高精度叠加.物探科技通报(增刊4),1990
4曹孟起.径向预测滤波/空间道内插.物探科技通报(增刊 4),1990
5王洪瑞等.两步法反褶积中子波的提取与反子波的计算.地震资料处理论文集,石油工业出版社,1995,156 ～159
2程乾生.信号数字处理的数学原理,石油工业出版社,1979
3陈殿卿.相干和高精度叠加.物探科技通报(增刊4),1990
4曹孟起.径向预测滤波/空间道内插.物探科技通报(增刊 4),1990
5王洪瑞等.两步法反褶积中子波的提取与反子波的计算.地震资料处理论文集,石油工业出版社,1995,156 ～159
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