Chemistry and Technology of Fuels and Oils

, Volume 51, Issue 2, pp 160–167 | Cite as

Factors Influencing Micro Sweep Efficiency When Flooding a Formation with Viscoelastic Polymer Solutions

  • Yikun Liu
  • Huiying Zhong
  • Xiaojuan Peng
  • Changliang Zhao

A mathematical model is proposed for polymer solution flow in dead-end pores, which was studied using micro-seepage of polymer solutions as an example. The mathematical model, including a continuity equation, a momentum conservation equation, and an equation of state, was solved by the finite difference method. The stream function and velocity contours were determined. The micro sweep efficiency when flooding the formation was calculated based on the velocity contour. The influence of elasticity, flow velocity, and viscosity of the polymer solution on the micro sweep efficiency was evaluated. It is demonstrated that the viscosity and the injection rate have a lesser effect on micro sweep efficiency than the elasticity of the polymer solution.

Key words

viscoelastic polymer solution flooding sweep efficiency velocity contour polymer flooding 


This work was done with the financial support of the Science Foundation for Young Scientists of Northeast Petroleum University of China (grant number NEPUQN 2014-29).


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Yikun Liu
    • 1
  • Huiying Zhong
    • 1
  • Xiaojuan Peng
    • 2
  • Changliang Zhao
    • 3
  1. 1.Key Laboratory of Enhanced Oil & Gas Recovery, Ministry of EducationNortheast Petroleum UniversityDaqingChina
  2. 2.Oil Recovery Plant No. 1, Daqing Oilfield Company LimitedDaqingChina
  3. 3.Offshore Petroleum Development CompanyLiaohe Oilfield CompanyPanjinChina

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