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EEI反演技术在南海A区开发气田中的应用

Application of the EEI inversion technology in the gas field exploitation in the area-A of south China sea

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【作者】 肖为史文英方中于但志伟杨平华钟明睿

【Author】 XIAO Wei;SHI Wen-ying;FANG Zhong-yu;DAN Zhi-wei;YANG Ping-hua;ZHONG Ming-rui;CNOOC Energy Technology &Services-Development & Prospecting Geophysical Co.;Hehai University;

【机构】 中海油能源发展股份有限公司钻采院地球物理所河海大学

【摘要】 南海A区某开发气田为岩性-断圈气藏,受断层影响,为多个小型断块气藏的集合,每块气水界面不统一,气藏情况复杂。常规的AVO反演技术往往只能定性地识别含气性,无法定量地识别储层的含水饱和度。为了满足气田合理高效开发的需求,查清每块气藏的气水充注程度,在高分辨率三维地震资料中,采用了EEI反演技术来预测储层的含水饱和程度。研究结果表明,在该区运用EEI反演技术得到的EEI属性,能有效地识别出含水饱和度低于60%的气层,研究成果对气田进入开发后期调整井布署、提高采收率具有不可替代的作用。

【Abstract】 The field locate in the area A of south China sea is a lithologic or structural gas reservoir.The gas field is divided into a number of small gas reservoir by faults.Each gas reservoir of the gas-water interface is not uniform,the situation of the reservoir is complex.Conventional AVO inversion technology can only be qualitative identification with gas,but can not predict the gas reservoir water saturation quantitatively.In order to meet the needs of the rational and efficient gas exploitation,the author predict the reservoir water saturation using EEI inversion technology on the high resolution 3Dseismic data.Research results show that the EEI attributes calculated by EEI inversion can predict gas reservoir effectively in the field where water saturation is lower than 60%.Predicted results obtained by drilling was confirmed.Research results play a very important role in adjustment wells deployment and GRF enhancing on gas field.

  • 【文献出处】 物探化探计算技术 ,Computing Techniques for Geophysical and Geochemical Exploration , 编辑部邮箱 ,2013年05期
  • 【分类号】P631.443
  • 【被引频次】1
  • 【下载频次】93
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