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天然气地球科学

• 天然气地质学 • 上一篇    下一篇

复杂非均质储层渗透率模型的分类评价方法

赵军1，范家宝1，代新雲1，何胜林2，张海荣2   

  1. 1．西南石油大学地球科学与技术学院，四川 成都 610500；
    2．中海石油湛江分公司研究院，广东 湛江 524057
  • 收稿日期:2016-08-06 修回日期:2016-12-05 出版日期:2017-02-10 发布日期:2017-02-10
  • 作者简介:赵军（1970-)，男，重庆人，教授，博士，主要从事油气测井、油气地质研究. E-mail：zhaojun_70@126.com.
  • 基金资助:

    国家“十二五”科技重大专项（编号：2011ZX05023-004-02)资助.

A classification method for permeability model in complex anisotropy reservoirs

Zhao Jun1，Fan Jia-bao1，Dai Xin-yun1，He Sheng-lin2，Zhang Hai-rong2   

  1. 1.School of Geosciences and Technology,Southwest Petroleum University,Chengdu 610500,China；
    2.Research Institute of Zhanjiang Company,CNOOC,Zhanjiang 524057,China
  • Received:2016-08-06 Revised:2016-12-05 Online:2017-02-10 Published:2017-02-10

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摘要：

针对非均质性强、不同区块或不同层位相同孔隙度条件下渗透率级差明显的情况，综合考虑各种复杂储层渗透率的影响因素后，利用传统渗透率模型对基于流动单元指数的储层渗透率分类进行改进，建立了符合莺歌海盆地的渗透率分类模型。并提出了选取经Gassmann流体替换校正后的纵波时差、孔隙度以及泥质含量3条测井曲线，运用Fisher判别分析法建立储层渗透率类型判别标准的新方法。应用该判别方法于莺歌海盆地A1、A2气田中，结果表明：该方法判别的渗透率类型准确度极高。

关键词: 储层, Gassmann流体置换, Fisher判别法, 渗透率模型

Abstract:

For the lack of homogeneity and the same porosity conditions permeability diverges obviously in different blocks or different layers.Considering various influencing factors on complex reservoir’s permeability,using the traditional permeability model to improve flowing unit index methods,classification model of the permeability in the Yinggehai Basin was set up.And put forward the selection by Gassmann fluid replacement after the correction of longitudinal wave time difference,porosity and shale content three logging curve,Fisher discriminant analysis is used to establish a new method of reservoir permeability type discriminant standard.Application of the discriminant method in A1,A2  gasfields of Yinggehai Basin,shows that distinguishing the permeability’s type using this method is very accurate.

Key words: Reservoir, Gassmann fluid replacement, Fisher discriminant analysis, Permeability’s model

中图分类号: 

  • TE32

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