改进的扩展多道匹配滤波器的应用

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英文篇名：Application of Modified Expanded Multi-channel Matching filter 中文刊名：内蒙古石油化工 英文刊名：Inner Mongolia Petrochemical Industry 作者：张繁 ; 袁宗军 ; 安少鹏 ; 吕震川 英文作者：ZHANG Fan1 ; 3 ; YUAN Zong-jun2 ; AN Shao-peng3 ; LV Zhen-chuan3(1.School of petroleum resources ; Xi'an Shiyou University ; Xi'an 710065 ; 2 ; BGP Acquisition Technique Surpporting Department ; Zhuozhou 072751 ; 3 ; BGP Changqing Department ; Xi'an 710021) 中文关键词：匹配相减 ; 扩展多道 ; 多次波衰减 英文关键词：Matching subtraction ; Expanded multi-channel ; Multiple attenuation 出版日期：2011-10-30 机构：西安石油大学油气资源学院;东方地球物理公司长庆经理部;东方地球物理公司采集部; 年：2011 期：20 出版单位：内蒙古石油化工

摘要

针对海洋地震数据自由表面多次波的衰减方法,重点研究了如何从原始地震数据中减除多次波的匹配相减方法。总结了常规匹配相减方法和改进的匹配相减方法,并分析了滤波因子长度、时窗大小和相邻匹配道数对匹配相减结果的影响。编写了改进的扩展多道匹配相减方法模块,通过模型和实际地震数据的测试,验证了该方法在多次波衰减中的有效性和模块的稳定性。
According to the free-surface related multiple attenuation methods of marine seismic data,we studied how to subtract predicted multiple model data from original data using matching filters.Conventional and modified matching filters were summarized.Three dominating parameters,length of filter,length of window and number of neighbor trace which involved in calculation,which affect the final subtraction result were analyzed.A module of the modified expanded multichannel matching method was completed and applied on synthetic and real seismic data.The multiple attenuation result shows that the method is effective and stable.

引文

[1]Arthur B,Weglein.Multiple attenuation:anoverview of recent advances and the road a-head(1999).The Leading Edge,1999,18(1):40~44.
    [2]牛滨华,沈操,黄新武.波动方程多次波压制技术的进展.地球物理学进展,2002,17(3):480~485.
    [3]Verschuur D J,Berkhout A J,Wapenaar CP.Adaptive surface-related multiple elimi-nation[J].Geophysics,1992,57(9):1166-1177.
    [4]Sven Treitel.Principles of digital multichan-nel filtering.Geophysics,1970,35(5):785~811.
    [5]Monk D J.Wave-equation multiple sup-pression using constrained cross-equaliza-tion.Geophysical Prospecting,1993,41:725~736.
    [6]Yanghua Wang.Multiple subtraction usingan expanded multichannel matching filter.Geophysics,2003,68(1):346~354.
    [7]刘华锋,李庆春,王立明.利用改进的扩展多道匹配相减法压制多次波.石油地球物理勘探,2009,44(3):270~275.