Question about the combination of Geothermal and EDFM

[Neo Zhu]

Dear MRST developers

     Thanks for all of you developing MRST. I'm a big fan of MRST.

     Now i want to establish a EGS model using Geothermal model and EDFM. I wanna define a fractured porous media system using EDFM. However, i saw the script of GeothermalModel and found the script was based on DFM. So i have a question here. Can the geothermal solver be used for EDFM girds?

      if yes, could you please give me a simple example? 

      if no, could you please tell me how to define a fractured porous media system using DFM?  (or which paper or books have introduced the DFM)

      I appreciate it so much if you can help me. Thanks in advance.

      Best wishes.

Sincerely, Neo 

2024.12.29. 

[Øystein S. Klemetsdal]

Dear Neo,

Happy to hear that you are a fan of MRST :)

The geothermal module does not support EDFM yet. You could have a look at the shale or hwu-fracture modules and see how they have implemented EDFM for compositional and black-oil models.

Best,

Øystein Klemetsdal // Research Scientist, SINTEF Digital

[Tongchao]

Hi Neo

I have exactly the same demands as you. I really want to see the combination of EDFM and geothermal simulation in MRST. 

When I realized EDFM and geothermal are two separate modules in MRST so far, I decided to do an EDFM-TH coupling code (ETH) myself. Here is what I have done with my collaborators based on Geothermal & HFM modules: 

ETH paper: https://doi.org/10.1016/j.advwatres.2025.105120
ETH codes and examples: https://doi.org/10.13140/RG.2.2.21532.76163

Hope you and other MRST fans find it useful (and report bugs if any).

One issue I already found is the well simulation (rooted in Geothermal  module, rather than introduced in ETH): when one injects or pumps thermal fluids, the temperature result makes no sense. (Hope I was wrong).

BTW, I really like MRST and want to thank the MRST developing team very much. 

Hope more ppl like and use MRST.

Best regards,

TC