SCO2 mode issues

[Otabir, Prince]

Dear concern,

I have this .in file where I am trying to simulate forsterite dissolution to precipitate magnesite. Whenever I use an injection rate of 1d-7, that is the only time the simulation runs, however, the results don't make sense. I expect to see pH reduce around the injection zone, instead, it increases, also there is no co2 gas plume to track, which makes me wonder if its because the injection rate is too low. I increased the porosity and permeability, but the issue still persists and I would really appreciate any better ways to fix this.

Regards,

Prince.