单道地震勘探应用中的干扰因素分析及压制
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摘要
在琼州海峡某工程区的单道地震勘探调查中,结合单道地震的工作原理分析了施测过程中随机干扰和规则干扰的来源和影响方式,提出从仪器及施工参数选择、仪器布设方式等方面对随机干扰进行规避;根据单道地震数据处理的基本流程,采用Geo-Allworks软件对规则干扰进行了过滤、剔除及压制处理,为后续的解译提供了基础。文章通过总结单道地震的干扰源及相应的压制方法,给工程勘探应用中的实际问题提出了建议。
The present paper has a discussion on origin and influence of random interference and regular interference in single-channel seismic exploration by the example of single-channel seismic exploration survey in the Qiongzhou Strait. A proposal of the evasion of the random interference by means of instruments and construction parameter selection and instrument layout way and of filter out and repression of regular interference by use of Geo-Allworks is offered.
The present paper has a discussion on origin and influence of random interference and regular interference in single-channel seismic exploration by the example of single-channel seismic exploration survey in the Qiongzhou Strait. A proposal of the evasion of the random interference by means of instruments and construction parameter selection and instrument layout way and of filter out and repression of regular interference by use of Geo-Allworks is offered.
引文
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[2]Le Blanc C,Louden K,Mosher D.Gas hydrates off Eastern Canada:Velocity models from wide-angle seismic profiles on the Scotian Slope[J].Marine and Petroleum Geology,2007,24(5):321-335.
[3]van der Werff W.Backarc deformation along the eastern Japan Sea margin,offshore northern Honshu[J].Journal of Asian earth sciences,2000,18(1):71-95.
[4]刘建勋.提高海上单道反射地震记录信噪比和分辨率的方法技术[J].物探化探计算技术,2007,29(增刊):116~122.
[5]李丽青,陈泓君,等.海洋区域地质调查中的高分辨率单道地震资料关键处理技术[J].物探与化探,2011,35(1):86~92.
[6]褚宏宪,杨源,张晓波,等.高分辨率单道地震调查数据采集技术方法[J].海洋地质前沿,2012,28(12):70~74.
[7]何汉漪.海上高分辨率地震技术及其应用[M].地质出版社,2001.
[8]李军峰,肖都,孔广胜,等.单道海上反射地震在海上物探工程中的应用[J].物探与化探,2004,28(4):365~368
[9]刘光鼎.海洋地球物理勘探[M].地质出版社,1978.
[10]杨振武.海洋石油地震勘探[M].石油工业出版社,2012.
[11]岳保静.单道地震资料处理方法及应用[D].中国科学院研究生院(海洋研究所),2010.
[12]张雅勤,张美华,宁俊瑞.海上船噪声干扰的压制技术[J].物探与化探,2001,25(4):290~293.
[13]陶华,郝高建.海洋工程物探勘察中的干扰现象[J].工程地球物理学报,2014,11(6):878~883.
[14]李亚峻.地震勘探子波估计、面波消减新技术研究[D].吉林大学,2007.
[15]Jones I F,Levy S.SIGNAL‐TO‐NOISE RATIO ENHANCEMENT IN MULTICHANNEL SEISMIC DATA VIA THE KARHUNEN‐LOéVE TRANSFORM*[J].Geophysical prospecting,1987,35(1):12~32.
[16]李军峰,李文杰,孟庆敏,等.高分辨率单道海上地震在香港海域沉积结构勘查中的应用[J].物探与化探,2007,31(1):90~94.
[17]Hammer P T C,Clowes R M,Ramachandran K.Seismic reflection imaging of thin,kimberlite dykes and sills:exploration and deposit characterization of the Snap Lake dyke,Canada[J].Lithos,2004,76(1):359~367.
[18]Greenhalgh S,Manukyan E.Seismic reflection for hardrock mineral exploration:lessons from numerical modeling[J].Journal of Environmental and Engineering Geophysics,2013,18(4):281~296.
[19]王揆洋.海洋浅地层高分辨率多道地震探测技术及应用[M].海洋出版社,2011.