ISSN 1673-8217 CN 41-1388/TE
主管:中国石油化工集团有限公司 主办:中国石油化工股份有限公司河南油田分公司
曾鸾, 常玉举, 李志华, 陈贞文. 2002: 周口盆地地震激发参数研究. 石油地质与工程, 16(06): 23-25+3.
引用本文: 曾鸾, 常玉举, 李志华, 陈贞文. 2002: 周口盆地地震激发参数研究. 石油地质与工程, 16(06): 23-25+3.
2002: A Research on Shooting Parameters in Zhoukou Basin. Petroleum Geology and Engineering, 16(06): 23-25+3.
Citation: 2002: A Research on Shooting Parameters in Zhoukou Basin. Petroleum Geology and Engineering, 16(06): 23-25+3.

周口盆地地震激发参数研究

A Research on Shooting Parameters in Zhoukou Basin

  • 摘要: 激发参数的选取对提高地震采集质量至关重要,周口盆地表层岩性较复杂,有粘土层、沙层、沙泥岩互层,并含有钙质结核,激发井深的选择原则要求在潜水面3~5m以下速度较高的泥岩层中激发。通过试验,提出逐段设计激发井深、逐点控制激发岩性技术,具体井深的确定由潜水面深度及该面以下激发岩性而定。该方法在周口盆地谭庄-沈丘凹陷的应用,取得了良好的效果。

     

    Abstract: Selection of shooting parameters is crucial to increase the quality of seismic acquisition.The surficial lithology in Zhoukou basin is complex including clay layers,sand layers and interbedded sand and mudstone with calcareous concretions.The principle for selection of shooting well depth is to shoot in mudstones with relatively high velocity3to5m below water table.A technology is developed through experiments,i.e.designing shooting well depth step by step and controlling shooting lothology point by point.The specific well depth is determined according to the depth of water table and the shooting lithology below the water table.Application of this technology in the Tanzhuang -Shenqiu depression in Zhoukou basin is very successful.

     

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