可控震源地震方法在金昌铜镍矿区的应用实验
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摘要
随着找矿工作向深部发展,可控震源地震逐渐成为金属矿勘探的主要方法。为探讨自行研制的PHVS-500型轻便小型可控震源在金属矿地震勘探中的应用效果,配合使用自行研制的地震观测系统,在甘肃金昌铜镍矿区开展了实验研究。通过PHVS-500与美国Minivib T15000型液压震源的实验剖面对比可知,轻便小型可控震源与国外震源产品在对应位置上反映出的4个反射层信息是一致的,表明了PHVS-500型轻便小型可控震源应用于金属矿勘探中是有效的。
With the development to deep exploration,controlled vibrator seismic exploration has become the main method of mineral deposit prospecting.In order to study the effect of portable mini PHVS-500 vibrator,developed by Laboratory of Geo-Exploration and Instrumentation of Ministry of Education in Jilin University,we carried out seismic method experiments in Jinchang copper-nickel mine.In this paper,we compared the seismic time profiles of PHVS-500 portable mini vibrator and U.S.Minivib T15000 hydraulic vibrator.The results show that four reflections are consistent at the corresponding position of two sources.It is concluded that portable high frequency vibrator system we developed is effective in metal deposit prospecting.
With the development to deep exploration,controlled vibrator seismic exploration has become the main method of mineral deposit prospecting.In order to study the effect of portable mini PHVS-500 vibrator,developed by Laboratory of Geo-Exploration and Instrumentation of Ministry of Education in Jilin University,we carried out seismic method experiments in Jinchang copper-nickel mine.In this paper,we compared the seismic time profiles of PHVS-500 portable mini vibrator and U.S.Minivib T15000 hydraulic vibrator.The results show that four reflections are consistent at the corresponding position of two sources.It is concluded that portable high frequency vibrator system we developed is effective in metal deposit prospecting.
引文
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[12]姜弢,林君,陈祖斌.延时参数对地震信号信噪比的改善[J].地球物理学报,2009,52(6):1651-1656.JIANG Tao,LIN Jun,CHEN Zu-bin.SNRimprovement of seismic signals with different timedelays[J].Chinese Journal of Geophysics,2009,52(6):1651-1656.
[13]Gibson J,Lin F,Egreteau A,et al.The case forlonger sweeps in vibrator acquisition[J].LeadingEdge,2010,29(6):648-652.
[14]徐明才,柴铭涛,荣立新,等.后覆盖区金属矿地震方法技术研究[J].物探化探计算技术,2007,29(6):492-496.XU Ming-cai,CHAI Ming-tao,RONG Li-xin,et al.Research of seismic method to metal exploration indeep coverage area[J].Computing Techniques forGeophysical and Geochemical Exploration,2007,29(6):492-496.
[2]勾丽敏,刘学伟,雷鹏,等.金属矿地震勘探技术方法研究综述:金属矿地震勘探技术及其现状[J].勘探地球物理进展,2007,30(1):16-24,46.GOU Li-min,LIU Xue-wei,LEI Peng,et al.Reviewof seismic survey in mining exploration:Part 1:theoryand reflection seismic methods[J].Progress inExploration Geophysics,2007,30(1):16-24,46.
[3]Eaton D W,Adam E,Milkereit B,et al.Enhancingbase-metal exploration with seismic imaging[J].Canadian Journal of Earth Sciences,2010,47(5):741-760.
[4]Barry J Drummond,Bruce R Goleby,Owen A J,et al.Seismic reflection imaging of ineral systems[J].ThreeCase Histories Geophysics,2000,65(6):1852-1861.
[5]Salisbury M H,Milkereit B,Ascough G L,et al.Physical properties and seismic imaging of massivesulfides[J].Geophysics,2000,65(6):1882-1889.
[6]徐明才.金属矿地震勘探[M].北京:地质出版社,2009:1-263.XU Ming-cai.Seismic methods for mineral exploration[M].Beijing:Geological Publishing House,2009:1-263.
[7]薛建,曾昭发,王者江,等.金属矿地震勘探物理模拟实验技术[J].吉林大学学报:地球科学版,2004,34(3):464-470.XUE Jian,ZENG Zhao-fa,WANG Zhe-jiang,et al.Experiment technique for ultrasonic physical modelingof metal deposit[J].Journal of Jilin University:EarthScience Edition,2004,34(3):464-470.
[8]林君.电磁驱动可控震源地震勘探原理及应用[M].北京:科学出版社,2004:1-196.LIN Jun.Seismic exploration and application ofvibrator driven by electromagnetic[M].Beijing:Science Press,2004:1-196.
[9]姜弢,林君,李桐林,等.相控震源对地震信号信噪比的改善研究[J].地球物理学报,2006,49(6):1819-1825.JIANG Tao,LIN Jun,LI Tong-lin,et al.Boostingsignal to noise ratio of seismic signals using thephased-array vibrator system[J].Chinese Journal ofGeophysics,2006,49(6):1819-1825.
[10]姜弢,林君,杨冬,等.相控震源定向地震波信号分析[J].地球物理学报,2008,51(5):1551-1556.JIANG Tao,LIN Jun,YANG Dong,et al.Analysisof directional seismic signal based on phased-arrayvibrator system[J].Chinese Journal of Geophysics,2008,51(5):1551-1556.
[11]Liu Guo-chang,Fomel S,Jin Long,et al.Stackingseismic data using local correlation[J].Geophysics,2009,74(3):43-48.
[12]姜弢,林君,陈祖斌.延时参数对地震信号信噪比的改善[J].地球物理学报,2009,52(6):1651-1656.JIANG Tao,LIN Jun,CHEN Zu-bin.SNRimprovement of seismic signals with different timedelays[J].Chinese Journal of Geophysics,2009,52(6):1651-1656.
[13]Gibson J,Lin F,Egreteau A,et al.The case forlonger sweeps in vibrator acquisition[J].LeadingEdge,2010,29(6):648-652.
[14]徐明才,柴铭涛,荣立新,等.后覆盖区金属矿地震方法技术研究[J].物探化探计算技术,2007,29(6):492-496.XU Ming-cai,CHAI Ming-tao,RONG Li-xin,et al.Research of seismic method to metal exploration indeep coverage area[J].Computing Techniques forGeophysical and Geochemical Exploration,2007,29(6):492-496.
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