大庆萨尔图低信噪比地区地震数据去噪
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摘要
大庆萨尔图区地表情况复杂,导致在地震资料上出现各种噪音干扰。通过对实际地震资料噪音特点的分析,针对地震资料中存在的面波、线性干扰、此生干扰、工业干扰,进行了系统研究,提出了具有针对性的去噪方法。对面波采用自适应面波压制;而对线性干扰,我们利用GR ISYS处理系统中的RELNO I和L INOEL模块的各自优缺点交互的对其压制;并对次生干扰进行了正演模拟分析。通过叠前叠后资料的去噪处理,提高了资料的信噪比。
Daqing Saertu area surface situation is complex,causing kinds of noise disturbance in seismic data.Through the actual analysis of seismic data character,being aimed at the disturbance of surface wave、Linear disturbance、secondary interference、industrial noise existing in the data,we has conducted the systematical research,proposed has the pointed denoising method.For surface wave,we applied adaptive surface wave surpressing,and for linear disturbance we took the advantage the RELNOI and LINOEL of GRISYS alternatively.And last we did forward modelling about secondary interference.After prestack and poststack denoising processing,enhanced the signal-to-noise ratio.
Daqing Saertu area surface situation is complex,causing kinds of noise disturbance in seismic data.Through the actual analysis of seismic data character,being aimed at the disturbance of surface wave、Linear disturbance、secondary interference、industrial noise existing in the data,we has conducted the systematical research,proposed has the pointed denoising method.For surface wave,we applied adaptive surface wave surpressing,and for linear disturbance we took the advantage the RELNOI and LINOEL of GRISYS alternatively.And last we did forward modelling about secondary interference.After prestack and poststack denoising processing,enhanced the signal-to-noise ratio.
引文
[1]胡天跃.地震资料叠前去噪技术的现状与未来[J].地球物理进展.
[2]晋为真,刘智煌,张小波.GRISYS处理系统中线性干扰去除方法研究.石油地球物理勘探,43(1).
[3]苑益军等.浅谈地震资料处理中的提高信噪比处理技术.石油地球物理勘探,40(2).
[4]张军华,吕宁,田连玉,陆文志,钟磊.震资料去噪方法技术综合评述.地物理学进展,2006,21(2).
[5]夏洪瑞,周开明.地震资料处理中相干干扰消除方法分析,石油物探,2003,42(4).
[6]蔡希玲.声波和强能量干扰的分频自适应检测压制方法.石油地球物理勘探,1999,34(4).
[7]Weihong Zhu et al,Linear median noiseattenuation using local radial trace medianfiltering.T'he Leading edge 2004,23(8).
[8]Canales I.L.Random noise reduction.Presented at the 54th SEG Mtg,1984,525~572.
[2]晋为真,刘智煌,张小波.GRISYS处理系统中线性干扰去除方法研究.石油地球物理勘探,43(1).
[3]苑益军等.浅谈地震资料处理中的提高信噪比处理技术.石油地球物理勘探,40(2).
[4]张军华,吕宁,田连玉,陆文志,钟磊.震资料去噪方法技术综合评述.地物理学进展,2006,21(2).
[5]夏洪瑞,周开明.地震资料处理中相干干扰消除方法分析,石油物探,2003,42(4).
[6]蔡希玲.声波和强能量干扰的分频自适应检测压制方法.石油地球物理勘探,1999,34(4).
[7]Weihong Zhu et al,Linear median noiseattenuation using local radial trace medianfiltering.T'he Leading edge 2004,23(8).
[8]Canales I.L.Random noise reduction.Presented at the 54th SEG Mtg,1984,525~572.
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