Luanjing Guo's Profile - TOUGH User Community

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Re: Initial Geochemical Equilibrium between Minerals and Brine
Thanks again, Lennard. The mineral assembly was measured for our rock sample, which is why I would like to stick to it. Indeed there are uncertainties associated with the measurements.…
- Luanjing_Guo
- 9 yrs ago
- TOUGHREACT
- Reported - view
Re: Initial Geochemical Equilibrium between Minerals and Brine
Thank you very much for the reply, Lennard. I've done just what you suggested. What I found out is that the mineral assembly has completely changed after equilibrium is achieved,…
- Luanjing_Guo
- 9 yrs ago
- TOUGHREACT
- Reported - view
Re: Documentation on the Numerical Aspects in Forming and Solving the Equations
There is a LBNL report that describes in details of numerical aspects of forming and solving the equations in reactive transport systems. I dont have an electronic file.…
- Luanjing_Guo
- 9 yrs ago
- TOUGHREACT
- Reported - view
Initial Geochemical Equilibrium between Minerals and Brine

Hello there, I'm simulating CO2 injection into sandstone aquifer of synthetic brine, NaCl. I've read in several papers in which TOUGHREACT w/ ECO2N is used and something is mentioned like "batch…
- Luanjing_Guo
- 9 yrs ago
- 6replies
- 974
- 1
- TOUGHREACT
Boundary water

Hi all, I'm modeling CO2 underground injection and we are injection a mixture of brine and supercritical CO2. Under the system pressure and temperature and the injection rates,…
- Luanjing_Guo
- 10 yrs ago
- 1reply
- 675
- TOUGHREACT
Re: Prescribed boundary conditions for chemistry but constant flow rate BCs for flow
Nic, That solved the problem. Thanks a lot.
- Luanjing_Guo
- 10 yrs ago
- TOUGHREACT
- Reported - view
Re: Prescribed boundary conditions for chemistry but constant flow rate BCs for flow
Nic, Thanks for your answer. What you suggested is what I did in the input files. I also tried to assign the boundary water to only the injection cell in the Record_15.…
- Luanjing_Guo
- 10 yrs ago
- TOUGHREACT
- Reported - view
Prescribed boundary conditions for chemistry but constant flow rate BCs for flow

Hi all, I'm using TOUGHREACT with ECO2N module. In the simulations, the flow is injected at a constant flow rate and due to dissolution/precipitation, the pressure would change at the boundary cell.…
- Luanjing_Guo
- 10 yrs ago
- 4replies
- 900
- 1
- TOUGHREACT
Re: Input conversion error, unit 33
Eric, thanks. I started with a fresh sample file and modified little by little and ran the input file after every modification. Now the error message is gone.
- Luanjing_Guo
- 10 yrs ago
- TOUGHREACT
- Reported - view
Input conversion error, unit 33

Hi there, I've modified a sample input file flow.inp (in P5-ECO2N) to use our dimensions and parameter values. But after running the toughreact executable, this is the error message I've got.…
- Luanjing_Guo
- 10 yrs ago
- 2replies
- 859
- TOUGHREACT

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