新疆石油地质

新疆石油地质 ›› 2000, Vol. 21 ›› Issue (2): 114-115.

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辽河盆地深层地震资料处理技术

米雪, 徐苏, 常汉章, 李尊, 刘东奇, 徐荣才   

  1. 中国石油天然气集团公司辽河油田公司勘探开发研究院 辽宁盘锦 124010
  • 收稿日期:1999-05-07 出版日期:2000-03-01 发布日期:2021-01-15
  • 作者简介:米雪( 1966.2-),女, 1989年毕业于成都地质学院物探系,物探专业,工程师。

The Techniques for Deep Seismic Data Processing in Liaohe Basin

Mi Xue, Xu Su, Chang Hanzhang, Li Zhun, Liu Dongqi, Xu Rongcai   

  1. Engineer, Geophysical Prospecting, Research Institute of Exploration and Development, Liaohe Oilfield Company, CNPC, Parijin, Liaoning 124010
  • Received:1999-05-07 Online:2000-03-01 Published:2021-01-15

摘要： 针对辽河盆地深层地震资料反射不清,信噪比及偏移成像精度低的情况,采用振幅补偿、叠前去噪、剩余静校 正、多次波压制及叠后去噪等技术提高信噪比；采用ＤＭＯ、偏移速度场平滑、叠前深度偏移等技术提高偏移成像精度。使 信噪比及偏移成像精度均有明显提高,极大地提高了深层地震资料的质量。

关键词: 辽河油田, 深层勘探, 地震解释, 地震数据处理, 信噪比, 偏移成像, 精度, 分辨率

Abstract: The deep seismic data from Liaohe basin assumed indistinct reflectance signature and poor accuracy of signal/ 'noise ratio and migrated imaging. For improving signal/ 'noise ratio, such techniques are applied as amplitude compensation, pre-stack noise removal, residual static correction, multiple rejection and post-stack noise removal. For enhancing the migrated imaging, these techniques, like DMO, migration velocity field smoothing and pre-stack depth migration, are used. By means of these processing techniques, both signal/ signal ratio and migrated imaging accuracy have been obviously enhanced, this making the quality of deep seismic data improved greatly.

Key words: Liaohe oilfield, Deep zone exploration, Seismic interpretation, Seismic data processing, Signal/noise ratio, Migration image, Accuracy, Resolution