Journal of Jilin University(Earth Science Edition) ›› 2022, Vol. 52 ›› Issue (2): 560-570.doi: 10.13278/j.cnki.jjuese.20200274

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Numerical Simulation of Heating Potential of U-Shaped Geothermal Well Based on T2WELL#br#

Feng Bo1,2,Cui Zhenpeng1,2,Zhao Pu3,Liu Xin1,2,Hu Zixu1,2   

  1. 1. Key Laboratory of Groundwater Resources and Environment(Jilin University), Ministry of Education, Changchun 130021,China 
    2. Engineering Center for Geothermal Resources Development Technology and Equipment(Jilin University), Ministry of Education,
    Changchun 130021,China 
    3. Hydrogeological Bureau of China Coal Geology Bureau,Handan 056004,Hebei,China
  • Received:2020-11-24 Online:2022-03-27 Published:2022-11-22
  • Supported by:
    the  National Key R&D Program of China (2018YFE0111300) and the Science and Technology Development Program of Jilin Province (20200403147SF)

Abstract: In order to  evaluate the sustainable utilizing ability of the U-shaped well closed cycle geothermal system in the eastern plain of Handan and design a reasonable exploitation scheme of geothermal energy, the numerical simulation method was adopted. Based on the short-term measured data of the test wells in the study area, the multiphase and multicomponent wellbore reservoir coupling flow simulation program T2WELL was used as the tool  to explore the feasibility of using U-shaped well closed cycle geothermal system and to develop geothermal energy for heating in the site, as well as the productivity state of geothermal wells under long-term operation and the  influence of different factors. The results show that when the length of horizontal well section is 400-500 m, and the circulation velocity is set as 80 m3/ h and the injection temperature is set as 20 ℃, the average heating power of 20 a can meet the heating demand, so this method is feasible for heating.

Key words: geothermal resources, closed-loop geothermal system, numerical simulation, T2WELL

CLC Number: 

  • P314
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