石油学报 ›› 2006, Vol. 27 ›› Issue (1): 64-68.DOI: 10.7623/syxb200601013

• 油田开发 • 上一篇    下一篇

聚合物驱波及系数和驱油效率实验研究

兰玉波1,2, 杨清彦2, 李斌会2   

  1. 1. 大庆石油学院 黑龙江大庆 163318;
    2. 大庆油田有限责任公司勘探开发研究院 黑龙江大庆 163712
  • 收稿日期:2005-05-05 修回日期:2005-06-24 出版日期:2006-01-25 发布日期:2010-05-21
  • 作者简介:兰玉波,男,1974年9月生,1995年毕业于大庆石油学院,现为大庆油田勘探开发院科研管理部副主任,大庆石油学院在读博士生,主要从事油气田开发研究.E-mail:lanyb@petrochina.com.cn
  • 基金资助:
    国家重点基础研究项目(G1999022512)部分成果.

Experimental research on sweep efficiency and oil-displacement efficiency of polymer flooding

Lan Yubo1,2, Yang Qingyan2, Li Binhui2   

  1. 1. Daqing Petroleum Institute, Daqing 163318, China;
    2. Exploration and Development Research Institute, Daqing Oilfield Company, Ltd., Daqing 163712, China
  • Received:2005-05-05 Revised:2005-06-24 Online:2006-01-25 Published:2010-05-21

摘要: 通过室内三维物理模拟驱油实验,研究了非均质砂岩油田聚合物驱油过程中波及系数与驱油效率的变化特征,探讨了采用聚合物驱工艺的储层类型对提高采收率的贡献程度.结果表明,在有隔层的条件下,中渗透层贡献程度达到了48.35%;其次是低渗透层,贡献率为30.86%;而高渗透层仅为20.79%.聚合物驱的主要作用在于提高中、低渗透层的波及系数.与注水工艺相比,聚合物所具有的粘弹性能提高驱油效率,但其对提高采收率的贡献是有限的.

关键词: 砂岩油田, 三维模型, 物理模拟, 聚合物驱, 波及系数, 驱油效率, 室内实验

Abstract: The characteristics of sweep efficiency and oil-displacement efficiency during the polymer flooding in the heterogeneous sandstone oilfield were studied by oil-displacement experiments on three-dimensional physical models.The effects of reservoir type with polymer flooding technology on enhanced oil recovery were analyzed.When the barrier exists,the contribution of medium-permeability reservoir to enhance oil recovery is 48.35%.The low-permeability reservoir has a contribution of 30.86%,and the high-permeability reservoir has 20.79%.The analysis shows that the polymer flooding is dominant to improve the sweep efficiency of reservoirs with low and middle permeability.Comparing with water flooding,the viscoelasticity of polymer flooding is favorable for improving the sweep efficiency of reservoirs,but it is limited to enhance oil recovery.

Key words: sandstone oilfield, three-dimensional model, physical simulation, polymer flooding, sweep efficiency, oil-displacement efficiency, laboratory experiment

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