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maybright

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Everything posted by maybright

  1. Hi Brian, Thanks for your reply. When I use Dolomite as a swap, it means it is forced to be in equilibrium? I think in my solution Dolomite is still dissolving, so I want to calculate SI for it as well. Can I only swap CO2 with H+, and use HCO3- to equilibrate charge balance? Best, Jin
  2. Hello, I made an reactive experiment with CO2-enrich brine and minerals under pressure. I have fluid sample information like most cation concentrations and the amount of CO2 exsolved at atm pressure (converted to CO2 fugacity). However I have no pH measurements at high pressure. I would like to use GWB to calculate mineral saturation index, but I'm a bit confused about setting up pH and HCO3-. The presents of CO2 and carbonate (dolomite) should both effect pH and HCO3-, so which should I put to swap with which..? I really appreciate if someone can show me the right way to set up the condition and calculate mineral (dolomite) SI. Many thanks, Jin
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