Reaction Interface file

Mailing List Archives ogs-users
1

Dear OGS users and devs,

for coupling OGS and PhreeqC, could anyone provide some background information on the .rei (reaction interface) files?

I received an example file from a colleague, which contains the keyword #REACTION_INTERFACE and the subkeyword $SOLID_SPECIES_DUMP_MOLES. A comment says this sets the mineral concentration in moles per m³ aquifer. However, the value set there is much lower than I would expect.

And a related question: which input dimensions does OGS generally expect from PhreeqC? So far, I've calculated water mass and aquifer rock moles with respect to 1m³ of porous aquifer. Is this correct? If so, is this correct for all dimensions?

Thanks in advance and best regards,

Daniel
···

Daniel Müller

Sec. 4.1 - Reservoir Technologies

      International Centre for Geothermal Research ICGR

      Tel +49 331 288-1567

Helmholtz-Zentrum Potsdam

      **Deutsches GeoForschungsZentrum GFZ**

      Stiftung des öff. Rechts Land Brandenburg

      Telegrafenberg, 14473 Potsdam

daniel.mueller@gfz-potsdam.de

2

Hi Daniel,

$SOLID_SPECIES_DUMP_MOLES.
will print out (not set) moles of solid phase species per m³ of Aquifer in an additional output file.

For information on the reaction interface, did you check the release notes of OGS5.5.0 on the UFZ wiki? Apart from this, there is not much further documentation.

For input concentrations: The question is rather: What input concentrations does Phreeqc expect? Usually, this is mol/kg water, which is simple for dilute systems, but tricky for brines. I guess it is easier for me to give you the information you need via telephone, so just give me a call whenever you like.

Christof

···

Am 19.02.2015 um 12:17 schrieb Daniel Müller:

Dear OGS users and devs,

for coupling OGS and PhreeqC, could anyone provide some background
information on the .rei (reaction interface) files?
I received an example file from a colleague, which contains the keyword
#REACTION_INTERFACE and the subkeyword $SOLID_SPECIES_DUMP_MOLES. A
comment says this sets the mineral concentration in moles per m³
aquifer. However, the value set there is much lower than I would expect.

And a related question: which input dimensions does OGS generally expect
from PhreeqC? So far, I've calculated water mass and aquifer rock moles
with respect to 1m³ of porous aquifer. Is this correct? If so, is this
correct for all dimensions?

Thanks in advance and best regards,
Daniel

------------------------------------------------------------------------
*Daniel Müller*
Sec. 4.1 - Reservoir Technologies
International Centre for Geothermal Research ICGR
Tel +49 331 288-1567
daniel.mueller@gfz-potsdam.de
------------------------------------------------------------------------
Helmholtz-Zentrum Potsdam
*Deutsches GeoForschungsZentrum GFZ*
Stiftung des öff. Rechts Land Brandenburg
Telegrafenberg, 14473 Potsdam

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_______________________________________
Dr. Christof Beyer
Institute of Geosciences
Geohydromodelling
Christian-Albrechts-University Kiel
Ludewig-Meyn-Str. 10
24118 Kiel
Germany

phone: +49(0)431-8803172
fax: +49(0)431-8807606
mobile: +49(0)176-24297908
email: christof.beyer@gpi.uni-kiel.de
home: http://www.ifg.uni-kiel.de/
_______________________________________