三维叠后随机噪声衰减技术

3-D poststack random noise attenuation technique

1. 长春科技大学,长春 130026;2. 中国新星石油公司石油物探研究所,南京 210O14;3. 中国新星石油公司第六物探大队,南京 210O09;4. 中国地质大学,北京 100083

Changchun University of Science and Technology, Changchun 130026

讨论了二维AR模型以及三维叠后f－x, y域预测随机噪声衰减技术；推导了沿不同空间方向预测的二维AR预测模型及其系数之间的关系；实现了基于同样原理之下的地震数据体边缘处的预测。实际资料处理结果表明, 这种处理方法在保持信号原有特征方面要优于f-x, y方法。

The paper discusses the 2-D AN model and the random noise attenuation technique in 3-Dpoststack f-xy domain. The relation between the 2-D AR model predicted along different spatial direc-tion and its ctrefficients is derived. Thus the prediction at the edge of seismic data volunle is realized. Re-al dsta processing results show that the method is advantageous over the f-xy method in preserving theoriginal character of seismic signals.