Mojo Posted February 15, 2022 Share Posted February 15, 2022 Hi I am trying to model salting out effect that happens during dry gas injection. I used thermo.tdt in React to model the reactions between the rock and brine at 135 C. The model works just fine when there is no evaporation. But when I considered evaporating >99% of the brine, the model outcomes does not look trustworthy to me as the brine ionic strength is super high (like around 500,000 PPM!). I doubt any brine at this salinity can be stable. I have already read again section 3.2 of the manual and I cannot use thermo_kmw.tdat as the ionic species and minerals I have in my system are not defined in this dataset. Do you have any suggestions how one can model salting out effect in this case? And why model shows such a high salinity brine? Also when I am calculating ionic strength based on the data from "Components in fluid", it does not match what I get from "Ionic strength" listed in "Chemical Paramnters" dropdown menu. And lastly, I am confused between the difference of "components in fluid" and "species concentration". They do not give the same number for any ion (for example check H+). Why is that? Which one shows the true concentration of ions (in particular H+) in brine? Many thanks and kind regards, Mojtaba 20 yrs injection.rea Quote Link to comment Share on other sites More sharing options...
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