中国石油勘探 ›› 2007, Vol. 12 ›› Issue (4): 49-52,7.

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准噶尔盆地排2井油层“亮点”地震响应及其识别

宋传春   

  • 出版日期:2007-08-15 发布日期:2007-08-15
  • 基金资助:
    中国石化胜利油田分公司新疆勘探开发中心研究课题“车排子三维区油气层地球物理特征研究与有利目标评价”部分成果

Seismic Response and Identification of Oil Reservoir "Bright Spot" of Well Pai-2 in Junggar Basin

Song Chuanchun   

  • Online:2007-08-15 Published:2007-08-15

摘要: 准噶尔盆地车排子地区排2井沙湾组发现轻质高产油层,由于受埋藏浅、油质轻、大套泥岩分割、油层物性好、油层速度低和与围岩波阻抗差值较大等因素的影响,在地震响应上具有"亮点"反射特征。利用合成记录标定、正演模拟、地震属性分析和反演技术对油层进行了判识,效果良好。

关键词: 亮点, 合成记录标定, 属性, 识别, 车排子

Abstract: Light oil reservoirs with high productivity are discovered in Shawan Formation of Well Pai-2 in Chepaizi area of Junggar Basin. They have "bright spot" seismic characteristics due to the shallow burial depth, light density, large mudstone segmentation, good physical properties of reservoir, low speed of reservoir and its big difference with wave impedance of surrounding rock. The reservoir is identified using such approaches as composite seismogram calibration, forward modeling, analysis of seismic properties, and inversion, and good results are obtained.

Key words: bright spot, composite seismogram calibration, property, identification, Chepaizi area

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