岩性油气藏 ›› 2017, Vol. 29 ›› Issue (6): 142–147.doi: 10.3969/j.issn.1673-8926.2017.06.018

• 油气田开发 • 上一篇    下一篇

枚举平衡法在油藏数值模拟初始化中的应用

岳世俊, 郑长龙, 杨兆平, 景紫岩, 刘雄志, 金保中   

  1. 中国石油勘探开发研究院 西北分院, 兰州 730020
  • 收稿日期:2017-05-30 修回日期:2017-08-14 出版日期:2017-11-21 发布日期:2017-11-21
  • 第一作者:岳世俊(1981-),男,硕士,工程师,主要从事油气田开发和油藏数值模拟方面的研究工作。地址:(730020)甘肃省兰州市城关区雁儿湾路535号。Email:yueshijun@petrochina.com.cn。
  • 基金资助:
    国家自然科学基金项目"基于正交匹配追踪算法的相敏关联层析研究"（编号：29932016006）资助

Application of initialization by enumeration equilibrium to reservoir numerical simulation

YUE Shijun, ZHENG Changlong, YANG Zhaoping, JING Ziyan, LIU Xiongzhi, JIN Baozhong   

  1. PetroChina Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China
  • Received:2017-05-30 Revised:2017-08-14 Online:2017-11-21 Published:2017-11-21

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摘要： 油藏数值模拟模型的初始化是油藏数值模拟过程中的重要环节。而常规的平衡法会导致在油层大片连通的区域有完全相同的原始含油饱和度值，这不符合真实的油藏流体分布情况。为提高数值模型的精确度，提出了枚举平衡法进行油藏数值模拟的模型初始化，原始流体饱和度通过三维地质模型的饱和度进行枚举，不再取决于相渗曲线端点值；然后通过相渗曲线端点标定，生成新的相渗曲线；通过毛管压力标定，保证了初始状态时流体饱和度场的平衡。实际应用表明，枚举平衡法能够较好地展示油藏原始含油饱和度的真实分布状态，并减少历史拟合工作量，在油藏数值模拟的实践中有较好的应用效果。

关键词: 自适应倾角导向, 中值滤波, 相似性, 倾角, 方位角

Abstract: The initialization of reservoir numerical simulation mode is very important to the model. The equilibrium method commonly used may result in the same initial oil saturation for a large connectivity area, which is different to the real condition. For improving the accuracy of the simulation model,the initialization by enumeration equilibrium method was proposed. The initial saturation is enumerated from 3D geological model and no longer depends on the end point values of the relative permeability curves. Then the end point scaling method is used for the relative permeability curves,and the new curves are produced. The initial liquid equilibrium-requirements can be met by capillary pressure scaling. The results show that the initial oil saturation distribution gained by enumeration-equilibrium method is closer to the true condition,and the history match can be simplified. The approach works well in application on reservoir numerical simulation.

Key words: auto-adaptive dip-steering, median filter, similarity, dip, azimuth

中图分类号: 

  • TE319
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