石油学报 ›› 2004, Vol. 25 ›› Issue (3): 44-47.DOI: 10.7623/syxb200403008

• 地质勘探 • 上一篇    下一篇

核磁共振成像技术在油气运移路径观察与分析中的应用

苗盛1, 张发强2, 李铁军2, 罗晓容3, 侯平3   

  1. 1. 中国石油勘探开发研究院廊坊分院, 河北廊坊, 102800;
    2. 中国石化勘探开发研究院, 北京, 100083;
    3. 中国科学院地质与地球物理研究所, 北京, 100029
  • 收稿日期:2003-06-23 修回日期:2003-11-20 出版日期:2004-05-25 发布日期:2010-05-21
  • 作者简介:苗盛,男,1969年10月生,1991年毕业于南开大学,现为中国石油勘探开发研究院廊坊分院工程师,主要从事核磁共振应用技术与渗流力学基础研究工作.E-mail:miaosheng69@petrochina.com.cn
  • 基金资助:
    国家重点基础研究发展规划(973)项目(G1999043310)资助.

Application of NMR imaging technique to quantitative observation and analysis on hydrocarbon migration pathway

MIAO Sheng1, ZHANG Fa-qiang2, LI Tie-jun2, LUO Xiao-rong3, HOU Ping3   

  1. 1. Langfang Institute of Petroleum Exploration and Development, Petr China, Langfang 102800, China;
    2. Research Institute of Petroleum Exploration and Production, SINOPEC, Beijing 100083, China;
    3. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
  • Received:2003-06-23 Revised:2003-11-20 Online:2004-05-25 Published:2010-05-21

摘要: 利用核磁共振成像技术观察圆管填玻璃珠物理模型内油的运移过程,对成像处理方法进行改进后,可以定量地观察和分析运移路径的形态特征及其内部的油饱和度.实验结果表明,被油占据的运移路径在整个通道内的比例取决于路径的形态,而路径内的油饱和度并非100%.在实验模型的尺度上,运移路径上的油饱和度在运移过程中可达80%以上;在运移结束后,因运移路径收缩、分离,油饱和度只占20%~0%,甚至更低.

关键词: 核磁共振成像技术, 原油, 二次运移, 孔隙介质, 饱和度, 运移路径, 实验研究

Abstract: The NMR imaging technique was applied to observe the oil migration process within a cylinder physical model filling with water-wetting glass beads.The migration pathway of oil can be clearly observed,and the oil saturation within the pathway can be quantitavely analyzed with the image processing method.It is found that the proportion of pathway filling with oil in whole cylinder depends on the cluster pattern.The oil saturation within the pathway may reach 80 percent in most parts of the cluster during oil migration.After the migration, the proportion of oil saturation within the pathway is in the range from 20 percent to 40 percent,or even smaller due to contraction and separation of the pathway.

Key words: NMR imaging technique, crude oil, secondary migration, porous medium, saturation, migration pathway, experimental study

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