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Heat extraction and power production forecast of a prospective Enhanced Geothermal System site in Songliao Basin, China

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  • Huang, Xiaoxue
  • Zhu, Jialing
  • Niu, Chengke
  • Li, Jun
  • Hu, Xia
  • Jin, Xianpeng

Abstract

As a promising advanced technology, Enhanced Geothermal System (EGS) utilizing deep geothermal energy has gained increasing attention. Production performance of a prospective EGS site in Songliao Basin was evaluated through mathematical modeling. Firstly, numerical simulation of heat extraction process in the fractured reservoir was carried out. To take account of the flow process in wellbores, reservoir-wellbore coupled simulation was undertaken through indirect coupling of TOUGH2 with the wellbore simulator HOLA, in which dynamic treatment of the wellbottom pressure was enabled. Power production performance was then investigated through thermodynamic modeling of an electricity generation system using the output from the reservoir-wellbore coupled simulation. The results suggest that the desirable thermal efficiency and gross power output could be obtained initially, whereas the decrease in production arising from thermal depletion of the reservoir is significant at later stages of operation. Meanwhile, the power consumption of the injection pump takes up an increasing amount of the generated power. It can be inferred from the comparison between simulations with and without coupling that a downhole pump could improve the hydraulic performance notably with little sacrifice of the thermal performance.

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  • Huang, Xiaoxue & Zhu, Jialing & Niu, Chengke & Li, Jun & Hu, Xia & Jin, Xianpeng, 2014. "Heat extraction and power production forecast of a prospective Enhanced Geothermal System site in Songliao Basin, China," Energy, Elsevier, vol. 75(C), pages 360-370.
    • Handle: RePEc:eee:energy:v:75:y:2014:i:c:p:360-370
    DOI: 10.1016/j.energy.2014.07.085
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    Cited by:

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    3. Zeng, Yu-Chao & Zhan, Jie-Min & Wu, Neng-You & Luo, Ying-Ying & Cai, Wen-Hao, 2016. "Numerical investigation of electricity generation potential from fractured granite reservoir through a single vertical well at Yangbajing geothermal field," Energy, Elsevier, vol. 114(C), pages 24-39.
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    5. Zhang, Yan-Jun & Guo, Liang-Liang & Li, Zheng-Wei & Yu, Zi-Wang & Xu, Tian-Fu & Lan, Cheng-Yu, 2015. "Electricity generation and heating potential from enhanced geothermal system in Songliao Basin, China: Different reservoir stimulation strategies for tight rock and naturally fractured formations," Energy, Elsevier, vol. 93(P2), pages 1860-1885.
    6. Lu, Shyi-Min, 2018. "A global review of enhanced geothermal system (EGS)," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P2), pages 2902-2921.
    7. Yuchao Zeng & Liansheng Tang & Nengyou Wu & Jing Song & Yifei Cao, 2017. "Orthogonal Test Analysis on Conditions Affecting Electricity Generation Performance of an Enhanced Geothermal System at Yangbajing Geothermal Field," Energies, MDPI, vol. 10(12), pages 1-17, December.
    8. Yuan Zhao & Lingfeng Shu & Shunyi Chen & Jun Zhao & Liangliang Guo, 2022. "Optimization Design of Multi-Factor Combination for Power Generation from an Enhanced Geothermal System by Sensitivity Analysis and Orthogonal Test at Qiabuqia Geothermal Area," Sustainability, MDPI, vol. 14(12), pages 1-35, June.
    9. Chen, Tairu & Liu, Gang & Liao, Shengming, 2019. "Impacts of boundary conditions on reservoir numerical simulation and performance prediction of enhanced geothermal systems," Energy, Elsevier, vol. 181(C), pages 202-213.
    10. Guo, Liang-Liang & Zhang, Yong-Bo & Zhang, Yan-Jun & Yu, Zi-Wang & Zhang, Jia-Ning, 2018. "Experimental investigation of granite properties under different temperatures and pressures and numerical analysis of damage effect in enhanced geothermal system," Renewable Energy, Elsevier, vol. 126(C), pages 107-125.
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