小药量单井多次激发组合叠加方法试验与效果分析
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摘要
为了提高沙漠区低信噪比地震资料的品质,从优化野外资料采集的激发方式出发,开展了小药量单井多次激发组合叠加方法试验。根据地质任务要求、工区表层结构条件和激发信号的优势频带宽度,通过多种激发因素的野外试验综合确定小药量单井激发的合理药量;针对克服小药量单炮能量不足,同时又利于压制干扰波的要求,对野外主炮点上小药量单井组合参数与井位布设进行合理的设计,并在后续的室内组合叠加处理时优选最佳炮数的小药量资料;通过小药量单井资料的组合叠加处理与分析,获得不同地表条件下一个主炮点上小药量单井多次激发应布设的最佳井数(激发次数)。方法试验和试生产的应用效果表明,小药量单井多次激发组合叠加技术较好地提高了沙漠区地震资料信噪比和分辨率。
In order to improve the quality of low signal-to-noise ratio seismic data in desert area,from the optimization of the way of shooting on field seismic data acquisition,we carried out the method experiment on array stack with multi-shooting records by smallcharge explosive in single borehole.According to the requirements of geologic task,as well as the condition of surface structure and dominant frequency band width of shooting signal,the reasonable quantity of small explosive in single borehole was synthetically determine by different shooting factors experiments in field.Aiming at overcoming the lack of energy by small-charge explosive in single borehole and meeting the demands for suppressing noise,we designed the reasonable array parameters for multi-shooting by smallcharge explosive in single borehole and well arrangement at the field main shot point;and then choosing the shot records of the optimal number of small-charge explosive in the next indoor arraystack processing.By analyzing on the array stacked records,we get the optimal number of small-charge explosive in single borehole at the one main shot point on different surfaces(shooting numbers).The method experiment and preproduction application indicate that the technique of array stack with multi-shooting records by small-charge explosive in single borehole improves signal-to-noise ratio and resolution of seismic information in desert.
引文
[1]王炳章.塔中围斜地区碎屑岩储层地震非线性综合预测[J].矿物岩石,2006,26(3):114-120Wang B Z.The nonlinearity Comprehensive predic-tion about clastic rock reservoir in Talimu periclinalarea[J].Mineral and Rock,2006,26(3):114-120
    [2]赵殿栋,郑泽继,吕公河,等.高分辨率地震勘探采集技术[J].石油地球物理勘探,2001,36(3):263-271Zhao D D,Zheng Z J,Lv G H.The technology ofseismic prospecting for high resolution[J].Geophys-ical Prospecting for Oil,2001,36(3):263-27
    [3]李庆忠.走向精确勘探的道路[M].北京:石油工业出版社,1993:58-59Li Q Z.The road access to precision exploration[M].Beijing:Petroleum Industry Press,1993:58-59
    [4]钱绍湖,刘平江,谷永兴.炸药震源爆炸机制及激发条件的研究[J].石油物探,1998,37(3):1-8Qian S H,Liu P J,Gu Y X.The research on the ex-plosive mechanism and excitation condition of dyna-mite source[J].Geophysical Prospecting for Petrole-um,1998,37(3):1-8
    [5]云美厚.炸药震源对有效地震波高频可记录性的影响[J].石油物探,1998,37(4):80-84Yun M H.The influence of explosive source on thecapability of recording hi-frequency components ofeffective seismic waves[J].Geophysical Prospectingfor Petroleum,1998,37(4):80-84
    [6]刘树田.地震勘探中炸药震源药型选择问题研究[J].石油物探,1999,38(4):66-73Liu S T.Research on the problem of dynamite typeslection in seismic prospecting[J].GeophysicalProspecting for Petroleum,1999,38(4):66-73
    [7]陈学强.塔里木盆地大北地区激发药量选择[J].石油物探,2007,46(1):81-89Chen X Q.The selection of shooting explosive quan-tity in Dabei area of Talimu[J].Geophysical Pros-pecting for Petroleum,2007,46(1):81-89
    [8]马伊诺夫B B.组合爆炸中炸药包间距的选择[J].石油物探,1964,3(4):93-96Mynf B B.The selection of combinatorial explosiondistance[J].Geophysical Prospecting for Petroleum,1964,3(4):93-96
    [9]袁子龙,左黄金,李婷婷.激发信号与反射信号的主频、振幅衰减及分辨率[J].石油物探,2004,43(6):537-539Yuan Z L,Zuo H J,Li T T.The dominant frequen-cies of shooting signals and reflection signals andamplitude decay as well as resolution[J].Geophysi-cal Prospecting for Petroleum,2004,43(6):537-539
    [10]何樵登.地震勘探原理和方法[M].北京:地质出版社,1986:142-144,155-162,173-175,274–278He Q D.The Principal and Methods of SeismicProspecting[M].Beijing:Geology Press,1986:142-144,155-162,173-175,274-278
    [11]陆基孟,王永刚.地震勘探原理[M].第3版.东营:中国石油大学出版社,2009:183-189Lu J M,Wang Y G.The Principal of Sseismic Ex-ploration[M].3rd ed.Dongying:The Petroleum U-niversity Press of China,2009:183-189

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