大庆萨尔图低信噪比地区地震数据去噪

【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。更多还原

【Abstract】 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.更多还原