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现代地质 ›› 2012, Vol. 26 ›› Issue (6): 1250-1257.

• 油气资源勘查 • 上一篇    下一篇

富含油储层地震响应特征分析

余振1,王彦春1,何静2,张丰麒1,王大全3   

  1. 1 中国地质大学 地球物理与信息技术学院,北京100083;2 恒泰艾普石油天然气技术服务股份有限公司,北京100084;
    3 中国石化集团西南石油局 云南物探公司,云南 昆明650233
  • 收稿日期:2012-06-15 修回日期:2012-08-23 出版日期:2012-10-24 发布日期:2012-10-31
  • 作者简介:余振,男,博士研究生,1984年出生,地球探测与信息技术专业,主要从事地震反演、储层及流体预测方面的研究。Email: a103110yz@126.com。
  • 基金资助:

    国家自然科学基金项目(40874067)。

Seismic Response Characteristic Analysis of Oil-rich Reservoirs

YU Zhen 1, WANG Yan chun1, HE Jing 2, ZHANG Feng qi1,WANG Da quan 3   

  1. 1 School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China;
    2 Land Ocean Energy Services Co,Ltd, Beijing100084, China;
    3 Yunnan Geophysical Company, Southwest Petroleum Bureau Group, SINOPEC, Kunming, Yunnan650233,China
  • Received:2012-06-15 Revised:2012-08-23 Online:2012-10-24 Published:2012-10-31

摘要:

针对油层与水层的地震响应特征较为接近,常规的流体检测手段预测油层效果不理想的问题,通过测井、地质、地球物理的综合研究以及理论模型和实际资料的统计分析,由振幅和甜点属性的相对变化量对富含油储层的地震响应特征进行分析,并定量地总结了规律。研究结果表明:当油层厚度较小时,振幅和甜点的相对变化量也较小,且与油层厚度没有明显关系;随着油层厚度的增大,振幅相对变化量线性增大,甜点相对变化量指数增大,增大的速度更快。甜点属性能够放大油层和水层之间的差异。

关键词: 富含油储层, 地震响应特征, 振幅, 甜点属性, 相对变化量

Abstract:

 The seismic response characteristics of oil layer and water layer are close, and conventional fluid prediction methods cannot get satisfactory result for oil layer prediction.Through integrated study of well logging, geology and geophysics, and statistical analysis of theoretical model and field data, the seismic response characteristic of oil-rich reservoir was analyzed from the point of the relative variations of amplitude and sweetness, and its regularity was summarized quantitatively.The results show that when the thickness of oil layer is small, the relative variations of amplitude and sweetness are small too, and they have no obvious relationship with the thickness of oil layer.With the thickness of oil layer increasing, the relative variation of amplitude increases linearly, and that of sweetness increases exponentially with higher rate.Sweetness can amplify the difference between oil layer and water layer

Key words: oil-rich reservoir, seismic response characteristic, amplitude, sweetness, relative variation