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Well-Placement Optimization in an Enhanced Geothermal System Based on the Fracture Continuum Method and 0-1 Programming

Author

Listed:
  • Liming Zhang

    (School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Zekun Deng

    (School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Kai Zhang

    (School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Tao Long

    (School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Joshua Kwesi Desbordes

    (School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Hai Sun

    (School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China)

  • Yongfei Yang

    (School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China)

Abstract

The well-placement of an enhanced geothermal system (EGS) is significant to its performance and economic viability because of the fractures in the thermal reservoir and the expensive cost of well-drilling. In this work, a numerical simulation and genetic algorithm are combined to search for the optimization of the well-placement for an EGS, considering the uneven distribution of fractures. The fracture continuum method is used to simplify the seepage in the fractured reservoir to reduce the computational expense of a numerical simulation. In order to reduce the potential well-placements, the well-placement optimization problem is regarded as a 0-1 programming problem. A 2-D assumptive thermal reservoir model is used to verify the validity of the optimization method. The results indicate that the well-placement optimization proposed in this paper can improve the performance of an EGS.

Suggested Citation

  • Liming Zhang & Zekun Deng & Kai Zhang & Tao Long & Joshua Kwesi Desbordes & Hai Sun & Yongfei Yang, 2019. "Well-Placement Optimization in an Enhanced Geothermal System Based on the Fracture Continuum Method and 0-1 Programming," Energies, MDPI, vol. 12(4), pages 1-20, February.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:4:p:709-:d:208042
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    References listed on IDEAS

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    1. Jianchao Cai & Zhien Zhang & Qinjun Kang & Harpreet Singh, 2019. "Recent Advances in Flow and Transport Properties of Unconventional Reservoirs," Energies, MDPI, vol. 12(10), pages 1-5, May.

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