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The Effect of Well Patterns on Surfactant/Polymer Flooding

Received: 6 December 2016     Published: 7 December 2016
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Abstract

Surfactant/polymer flooding enhances oil recovery by increasing water viscosity and decreasing water/oil interfacial tension. Researches have proved that well pattern has a significant effect on the development performance of surfactant/polymer flooding. Based on reservoir numerical simulation method, the paper studies the development performance of surfactant/polymer flooding using line drive well pattern, five-spot well pattern, nine-spot well pattern, inverse nine-spot and inverse seven-spot well pattern. Results show that the line drive method and five-spot method achieve the highest oil recovery while that of the inverse seven-spot well pattern is the lowest. Mechanism analysis indicates that the displacement efficiency is the dominate factor behind the result. So when determining which well pattern should be used for surfactant/polymer flooding, the displacement efficiency have to be increased as much as possible. Besides, the well pattern should be reasonably designed so that the injection and production wells can be perpendicular with the high permeability channels in order to reduce channelling flow of chemicals. When the heterogeneity of an actual large-scale oilfield is strong and complex, several well patterns may be used together.

Published in International Journal of Energy and Power Engineering (Volume 5, Issue 6)
DOI 10.11648/j.ijepe.20160506.13
Page(s) 189-195
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Surfactant/Polymer Flooding, Well Pattern, Enhanced Oil Recovery, Streamline Analysis

References
[1] S. Zhang. A rational relationship between well spacing and ultimate recovery. Acta Petrolei Sinica, 1987, 8 (1): 45-50.
[2] S. Yang, X. Song. Numerical simulation for the well pattern of low-permeability oil reservoirs. Petroleum Exploration and Development, 2001, 28 (6): 64-67.
[3] C. Shi, J. Li, Q. Lei, A. Zhang. Research and practice on well-pattern type of ultra-low permeability oil field. 2002, 29 (5): 59-61.
[4] H. Yue. Research on well pattern optimization during polymer flooding in class Ⅱ reservoirs of Lamadian oilfield. Petroleum Geology & Oilfield Development in Daqing, 2005, 24 (4): 84-86.
[5] Y. Liu, J. Chen. Well pattern optimization combination of high water cut oilfield: case study for Xia-Layer system of Xiaermen oilfield. Fault-Block Oil & Gas Field, 2006, 13 (3): 34-35.
[6] D. Han, F. Zhang, X. Zhou, C. Jin, D. Mei, M. Li. Study on adjustment technology of waterflood development of low permeability reservoirs in the periphery of Daqing oilfield. Acta Petrolei Sinica, 2007, 28 (1): 83-86.
[7] M. Li. Optimization of well pattern for chemical flooding at high water cut stage of old oilfield. Dring & Production Technology, 2008, 31 (3): 114-115, 118.
[8] L. Zhang, H. Guo, J. Jiang, H. Li, W. Dong, S. Hu, H. Zhang. Research on rational well pattern and space for Ⅳ5-11 strata of Shuanghe oilfield. Journal of Oil and Gas Technology, 2010, 32 (6): 457-460.
[9] J. Ai, S. Zhou, Y. Ma, J. Xiao, Y. Dai, H. Li, G. Hui. Study on effectiveness of integrating well pattern rearrangement with binary combination flooding in oil reservoirs with high water-cut: an example from Ⅳ5-11 layers in Shuanghe oilfield, the Nanxiang Basin. Oil & Gas Geology, 2012, 33 (1): 129-134.
[10] J. Wen. Well pattern and spacing optimization for surfactant/polymer flooding in high water cut reservoirs of Liaohe oilfield. Special Oil & Gas Reservoirs, 2012, 19 (2): 73-75.
[11] Y. Wu, H. Wang, J. Wu, Y. Tian, M. Qiao. Optimization of well pattern and well parameter in low permeability oilfield. Oil Gas Field Surface Engineering, 2014, 33 (3): 19-20.
Cite This Article
  • APA Style

    Kang Zhou, Jian Hou, Xiaoning Li. (2016). The Effect of Well Patterns on Surfactant/Polymer Flooding. International Journal of Energy and Power Engineering, 5(6), 189-195. https://doi.org/10.11648/j.ijepe.20160506.13

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    ACS Style

    Kang Zhou; Jian Hou; Xiaoning Li. The Effect of Well Patterns on Surfactant/Polymer Flooding. Int. J. Energy Power Eng. 2016, 5(6), 189-195. doi: 10.11648/j.ijepe.20160506.13

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    AMA Style

    Kang Zhou, Jian Hou, Xiaoning Li. The Effect of Well Patterns on Surfactant/Polymer Flooding. Int J Energy Power Eng. 2016;5(6):189-195. doi: 10.11648/j.ijepe.20160506.13

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  • @article{10.11648/j.ijepe.20160506.13,
      author = {Kang Zhou and Jian Hou and Xiaoning Li},
      title = {The Effect of Well Patterns on Surfactant/Polymer Flooding},
      journal = {International Journal of Energy and Power Engineering},
      volume = {5},
      number = {6},
      pages = {189-195},
      doi = {10.11648/j.ijepe.20160506.13},
      url = {https://doi.org/10.11648/j.ijepe.20160506.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijepe.20160506.13},
      abstract = {Surfactant/polymer flooding enhances oil recovery by increasing water viscosity and decreasing water/oil interfacial tension. Researches have proved that well pattern has a significant effect on the development performance of surfactant/polymer flooding. Based on reservoir numerical simulation method, the paper studies the development performance of surfactant/polymer flooding using line drive well pattern, five-spot well pattern, nine-spot well pattern, inverse nine-spot and inverse seven-spot well pattern. Results show that the line drive method and five-spot method achieve the highest oil recovery while that of the inverse seven-spot well pattern is the lowest. Mechanism analysis indicates that the displacement efficiency is the dominate factor behind the result. So when determining which well pattern should be used for surfactant/polymer flooding, the displacement efficiency have to be increased as much as possible. Besides, the well pattern should be reasonably designed so that the injection and production wells can be perpendicular with the high permeability channels in order to reduce channelling flow of chemicals. When the heterogeneity of an actual large-scale oilfield is strong and complex, several well patterns may be used together.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - The Effect of Well Patterns on Surfactant/Polymer Flooding
    AU  - Kang Zhou
    AU  - Jian Hou
    AU  - Xiaoning Li
    Y1  - 2016/12/07
    PY  - 2016
    N1  - https://doi.org/10.11648/j.ijepe.20160506.13
    DO  - 10.11648/j.ijepe.20160506.13
    T2  - International Journal of Energy and Power Engineering
    JF  - International Journal of Energy and Power Engineering
    JO  - International Journal of Energy and Power Engineering
    SP  - 189
    EP  - 195
    PB  - Science Publishing Group
    SN  - 2326-960X
    UR  - https://doi.org/10.11648/j.ijepe.20160506.13
    AB  - Surfactant/polymer flooding enhances oil recovery by increasing water viscosity and decreasing water/oil interfacial tension. Researches have proved that well pattern has a significant effect on the development performance of surfactant/polymer flooding. Based on reservoir numerical simulation method, the paper studies the development performance of surfactant/polymer flooding using line drive well pattern, five-spot well pattern, nine-spot well pattern, inverse nine-spot and inverse seven-spot well pattern. Results show that the line drive method and five-spot method achieve the highest oil recovery while that of the inverse seven-spot well pattern is the lowest. Mechanism analysis indicates that the displacement efficiency is the dominate factor behind the result. So when determining which well pattern should be used for surfactant/polymer flooding, the displacement efficiency have to be increased as much as possible. Besides, the well pattern should be reasonably designed so that the injection and production wells can be perpendicular with the high permeability channels in order to reduce channelling flow of chemicals. When the heterogeneity of an actual large-scale oilfield is strong and complex, several well patterns may be used together.
    VL  - 5
    IS  - 6
    ER  - 

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Author Information
  • School of Petroleum Engineering, China University of Petroleum, Qingdao, China

  • School of Petroleum Engineering, China University of Petroleum, Qingdao, China

  • School of Petroleum Engineering, China University of Petroleum, Qingdao, China

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