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天然气地球科学 ›› 2011, Vol. 22 ›› Issue (4): 728–732.doi: 10.11764/j.issn.1672-1926.2011.04.728

• 非常规天然气 • 上一篇    下一篇

利用地震AVO反演预测煤与瓦斯突出区

 胡朝元, 彭苏萍, 杜文凤, 勾精为   

  1. 1.中国矿业大学煤炭资源与安全开采国家重点实验室，北京 100083;
    2.中国煤炭地质总局地球物理勘探研究院，河北  涿州 072750
  • 收稿日期:2010-12-03 修回日期:2011-04-27 出版日期:2011-08-10 发布日期:2011-08-10
  • 通讯作者: 胡朝元hcy0315@sina.com E-mail:hcy0315@sina.com
  • 作者简介:胡朝元(1963-)，男,河北石家庄人,高级工程师,主要从事三维地震资料解释技术研究.
  • 基金资助:

    国家“973”项目(编号：2009CB219603;2009CB72460;2010CB226800)联合资助.

Seismic AVO Inversion and Coal-gas Outburst Area Prediction

 HU  Chao-Yuan, PENG  Su-Ping, DU  Wen-Feng, GOU  Jing-Wei   

  1. 1.State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology,
    Beijing 100083,China;2.Research Institute of Coal Geophysical Exploration,China National Administration
    of Coal Geology,Zhuozhou 072750,China
  • Received:2010-12-03 Revised:2011-04-27 Online:2011-08-10 Published:2011-08-10

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摘要：

基于地震AVO反演原理和方法，针对已知的煤与瓦斯突出点进行了AVO反演。单点分析发现，煤与瓦斯突出点处的偏移距—振幅拟合关系的截距和梯度绝对值比非突出点大，表明煤与瓦斯突出点能引起地震AVO响应异常。依据突出点处的地震AVO响应特征，通过交会分析和综合指标分析，可实现对煤与瓦斯突出区的预测。但是，作为一项新的预测技术，在实际应用中要结合区域地质综合分析，以避免AVO反演结果的多解性。

关键词: 煤与瓦斯突出, AVO反演, 地震勘探

Abstract:

Based on principle and method of seismic AVO inversion,the inversion for some known coal-gas outburst points is integrated.Single point analysis shows that the absolute AVO intercept and gradient at the coal-gas outburst point is greater than that at the non-outburst point,suggesting that the AVO abnormity would be resulted from coal-gas outburst points.According to AVO response at the coa-gas outburst points,the prediction of coal-gas outburst area is gotten by AVO crossplot and integrative index.As a new predicting technology,the comprehensive analysis of the regional geology should be involved practically so as to avoid the multi\|solutions of AVO inversion.

Key words: Coal-gas outburst, AVO inversion, Seismic exploration.

中图分类号: 

  • TE132.2

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