From TOUGH3 to T2WELL conversion
Dear TOUGH communities,
I have built a CO2 injection model in TOUGH3/ECO2M and it runs perfectly. However, I want to run exactly the same input using T2WELL/ECO2M, but the model fails. I did change the wellhead name for T2WELL using the *. I also tried to play with the wellbore permeability as suggested by in previous posts, but it did not help so far. Please find my model attached.
Also, I would like to ask the following question. According to the manual, TOUGH3 does not implicitly model coupled wellbore-reservoir behavior (the wellbore model can be included in a tabular form). However, when I modeled the 1) only wellbore first and then only the reservoir and 2) "coupled" wellbore-reservoir (both wellbore and reservoir cells included in the same input file), results were different, especially for the overpressure in the first reservoir cell (connected to the wellbore). I found out that the overpressure for the reservoir model is two times higher than the one for the "coupled" model. I was expecting the same overpressure or slightly different since no direct coupling solution is implemented in TOUGH3.
Thanks!