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Re: Mass balance of ECO2N
@feng zhao Yes, the criteria for convergence of mass error applied in your case is also 1.0e-5. But if the total mass >1,0e-5, the relative mass error criteria will be used.
- kenny
- 10 mths ago
- TOUGH3
- Reported - view
Re: Mass balance of ECO2N
Inside the TOUGH3, the convergence criteria for mass and energy balance equations are relative mass error (mass changed/total mass). or absolute mass error.…
- kenny
- 11 mths ago
- TOUGH3
- Reported - view
Re: TOUGH3 vs TOUGH2-MP Printout of Mass fractions in single phase
When a phase saturation is 0.0, the mass fractions inside the phase is meaningless. In such case, they may be simply assigned a 0.0 value or even not be taken care.…
- kenny
- 11 mths ago
- TOUGH3
- Reported - view
Re: Modelling of high temperature (600 ℃) air injection.
No module can handle such high temperature in TOUGH3. If you believe no supercritical water will appear, you may try EOS6 in TOUGH4 (https://lbl-1.gitbook.io/tough4-user-manual/process-modeling/eos6)
- kenny
- 11 mths ago
- TOUGH2
- Reported - view
Re: how to set initial temperature distribution
You run the simulation in isothermal. So, the energy equation was not solved and there was no temperature change.
- kenny
- 11 mths ago
- TOUGHREACT
- Reported - view
Re: About the fluid velocity in the governing equation
（1）The results of pressure and velocity from flow simulation are phase pressure and velocity. They are for aqueous phase (water+small amount salt and CO2) and gas phase (CO2+ small amount water)…
- kenny
- 11 mths ago
- TOUGHREACT
- Reported - view
Re: Can't assign more than 500 number of material?
TOUGH3 was designed for any number of rocks. The figure you shared shows that input initial temperatures are too low (<1 oC). You may have a wrong initial condition (no water in the system).
- kenny
- 1 yr ago
- TOUGH2
- Reported - view
Re: Simple model test with ECO2N
You may try: MOP(11)=0 and ICP=7
- kenny
- 1 yr ago
- TOUGH3
- Reported - view
Re: Can't assign more than 500 number of material?
How do you input 2500 materials? In TOUGH simulation, people always have a small number of rocks. If you need to generate a heterogenous field (for permeability and porosity only),…
- kenny
- 1 yr ago
- TOUGH2
- Reported - view
Re: Seeking help to solve ECO2M problems
(1) if temperature drops to -18 0C, ECO2M does not work correctly (no definition for the thermophysical properties at such temperature in ECO2M) Make sure the injection fluid has a correct enthalpy.…
- kenny
- 1 yr ago
- TOUGH2
- Reported - view
Re: low injection rate cannot work in 2D model
It seems something is wrong with the flow model. You may turn off the transport and reaction simulation, and make sure the flow model works correctly. If it still does not work,…
- kenny
- 1 yr ago
- TOUGHREACT
- Reported - view
Re: Specify the time-dependent pressure boundary condition in TOUGH+HYDRATE
In TOUGH+Hydrate V1.5, there is a keyword named "BOUNDARIES". You can use this keyword for the input of time dependent boundary conditions. You may use a large volume as a time-dependent boundary…
- kenny
- 1 yr ago
- TOUGH+
- Reported - view
Re: cannot find -laztec
Hi Diana, The AZTEC was included in the TOUGH3 distribution package. It should be compiled automatically. If -laztec can not be found, it means something wrong in compilation of AZTEC.…
- kenny
- 1 yr ago
- 1
- TOUGH3
- Reported - view
Re: How could charge diffierent boundary water at same model?
You may take a look of the input keyword "TIMBC"
- kenny
- 1 yr ago
- TOUGHREACT
- Reported - view
Re: HOW DOES THE ELEME BLOCK WORK? (NOVICE ALERT!!)
The parameters for ELEME block have been explained in tough or tough+ user manual. They are (from left to right) element name (A001 ), rock type(1), element volume (0.1e0), x (0.51e-1), y ( -0.…
- kenny
- 1 yr ago
- 1
- TOUGH+
- Reported - view
Re: FLOW VECTOR CANCELLING EACH OTHER FOR SOURCE/SINK TERMS
Are you using the standard version of TOUGH3? I can not find the statement "totflo(k,np) = flo(nnp+np)*dvecta(k,iconel) + totflo(k,np)" in it.
- kenny
- 1 yr ago
- TOUGHREACT
- Reported - view
Re: T2WELL deals with time scale inconsistencies
@Xinyu Convergence problem is still a challenging for T2well, especially for the high temperature CO2 sequestration simulation (ECO2N V.20). We are working on this issue.…
- kenny
- 1 yr ago
- TOUGH3
- Reported - view
Re: TOUGH2/EOS5. Temperature behaviour.
If you can share the input files, I would like to have a look.
- kenny
- 1 yr ago
- TOUGH2
- Reported - view
Re: TOUGH3 installation issue
Please try TOUGH3 V1.1. If you have a license for TOUGH3, you get get it free from LBNL marketplace.
- kenny
- 1 yr ago
- TOUGH3
- Reported - view
Re: How to set SAVE_Frequency =500 in Input File-T+H Simulation
You must input the SAVE frequency at column 71-75, but you had the input at column 76-80..
- kenny
- 1 yr ago
- 1
- TOUGH+
- Reported - view
Re: ECO2M:run is not convergent
Assigning a large volume to wellhead element *bA 1 is not correct, if you inject CO2 by using GENER through *bA 1 element. Normal volume must be used for such a case.…
- kenny
- 1 yr ago
- TOUGH2
- Reported - view
Re: Error when trying to output the time series
If you need output for all elements, you should not use the output for time series. You may specify the normal output at more times.
- kenny
- 1 yr ago
- TOUGHREACT
- Reported - view
Re: Results file not found (ECO2M, TOUGH V2.1), no .csv file generated
@Prince Kumar If you use the version of TOUGH2 V2.0 from LBNL marketplace and did not make any change, you will not see the .csv output files. The output of .…
- kenny
- 1 yr ago
- 1
- TOUGH2
- Reported - view
Re: Results file not found (ECO2M, TOUGH V2.1), no .csv file generated
TOUGH v2.1 does not generate .csv outputs. You should use TOUGH3
- kenny
- 1 yr ago
- 1
- TOUGH2
- Reported - view
Re: About the direction of xyz during mesh creation
(1) If gravity is positive, negative angle means grid layer going up (counterclockwise). (2) yes.
- kenny
- 1 yr ago
- 1
- TOUGH2
- Reported - view

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