石油学报 ›› 2006, Vol. 27 ›› Issue (4): 63-66.DOI: 10.7623/syxb200604014

• 地质勘探 • 上一篇    下一篇

利用地震资料定量反演孔隙度和饱和度的新方法

金龙, 陈小宏, 姜香云   

  1. 中国石油大学资源与信息学院, 北京, 102249
  • 收稿日期:2005-08-28 修回日期:2006-03-09 出版日期:2006-07-25 发布日期:2010-05-21
  • 作者简介:金龙,男,1978年8月生,2001年毕业于大庆石油学院,现为中国石油大学(北京)资源与信息学院博士研究生,主要从事地震资料处理方法,叠前地震资料分析与反演,信息融合储层描述与预测方法等研究.E-mail:jinlong4321@yahoo.com.cn
  • 基金资助:
    国家高技术研究发展计划(863)项目(2001AA602011-2)资助.

Simultaneous inversion of porosity and saturation using seismic data

Jin Long, Chen Xiaohong, Jiang Xiangyun   

  1. Faculty of Resources and Information Technology, China University of Petroleum, Beijing 102249, China
  • Received:2005-08-28 Revised:2006-03-09 Online:2006-07-25 Published:2010-05-21

摘要: 提出了一种基于岩石物理模型与混合优化算法同时反演孔隙度和饱和度的新方法.将孔隙度和饱和度的取值范围加入反演过程作为约束,能提高反演的稳定性和精度.基于地震纵、横波速度反演结果,直接得到油藏参数值.该方法也可以推广到直接利用地震振幅属性来进行反演.分析了不同属性组合对孔隙度和饱和度反演结果的影响.模型计算结果表明,该方法具有精度高、稳定性好等优点,同时易于推广到多种岩石物理模型、多地震属性组合与多参数定量反演中.

关键词: 地震资料, 定量反演, 饱和度, 孔隙度, 岩石物理模型, 混合优化算法

Abstract: A new method for simultaneous inversion of porosity and saturation based on rock-physics model and hybrid optimization method was presented.The principles of rock-physics model and hybrid optimization method and the inversion process were introduced.The valued range of porosity and saturation were entered into the inversion process and taken as the constraint of inversion to enhance the precision and stabilization of inversion.The seismic data used in the inversion were based on the inversion of seismic velocity.The influence of seismic attributes combination on inversion result was discussed.The forward modeling data show that the proposed method has some advantages of more precise inversion result and stable inversion process and can be generalized to the inversions using other rock-physics model,reservoir parameters and multiple seismic attributes.

Key words: seismic data, quantitative inversion, saturation, porosity, rock-physics model, hybrid optimization algorithm

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