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Re: Query on Early Steady State in Methane Discharge Model at 1% Hydraulic Gradient
I do not think any problem for the set up of initial conditions. Adding gas sources should not bring negative pressure or NaN value. I would suggest your do numerical experiments by running the model…
- kenny
- 2 wk ago
- TOUGH2
- Reported - view
Re: Query on Early Steady State in Methane Discharge Model at 1% Hydraulic Gradient
@Jordon Massey You model has reached the maximum number of time steps of 9999. If you want to run more time steps than 9999, you may input MCYC=-20. By the way,…
- kenny
- 3 wk ago
- TOUGH2
- Reported - view
Re: Modify capillary pressure unit by unit
@Luoluo Capillary pressure was calculated cell by cell as a function of liquid saturation when calling to the EOS for updating the fluid thermophysical properties,…
- kenny
- 3 wk ago
- TOUGH2
- Reported - view
Re: Query on Early Steady State in Methane Discharge Model at 1% Hydraulic Gradient
please post the output log file here. There are many reasons that cause the simulation to stop. If it stops (reaches steady) for continually converging on one single time step,…
- kenny
- 3 wk ago
- TOUGH2
- Reported - view
Re: Modify capillary pressure unit by unit
Most people coupling flac3d with TOUGH at each time-step. For such a case, you need to update the capillary pressure at the beginning of each time step in time stepping loop.…
- kenny
- 3 wk ago
- TOUGH2
- Reported - view
Re: How to make a "no flux" grid?
You do not need to set the grids at the top 80 meters as "no flux" grids. If these grids do not have connection to surrounding elements, they are automatically treated as "no flux" to surrounding…
- kenny
- 1 mth ago
- TOUGHREACT
- Reported - view
Re: About the SEED with porosity
@Luoluo It should work, if you are using TOUGH3 (except module ECO2M and TMVOC which requires a slight different input format for including phase state index).
- kenny
- 1 mth ago
- TOUGH2
- Reported - view
Re: Mass balance assessment with TOUGH3
If you are using MPI for the simulation, the flux for a connection crossing two subdomains (model subdomains handled in different CPUs) may be printed twice.…
- kenny
- 1 mth ago
- TOUGH3
- Reported - view
Re: NUMBER OF ELEMENTS SPECIFIED IN DATA BLOCK "ELEME" EXCEEDS ALLOWABLE MAXIMUM OF 12000
@Anand Jadhav Both problems you had are array-size problem. You need to increase of corresponding array size through editing T2. You may get information from TOUGH2 user manual for the details of…
- kenny
- 1 mth ago
- 1
- TOUGH2
- Reported - view
Re: possibly bug in viscosity calculation in TOUGH3_EWASG
@Norihiro Watanabe My understanding is that the pressure used for the liquid density calculation is liquid water pressure. COBRI() was designed for both single aqueous phase or two-phase flow.…
- kenny
- 1 mth ago
- TOUGH3
- Reported - view
Re: NUMBER OF ELEMENTS SPECIFIED IN DATA BLOCK "ELEME" EXCEEDS ALLOWABLE MAXIMUM OF 12000
You need to edit the text file T2 (which is one of the files included in the TOUGH2 source code package) by increasing MNEL and MNCON to a number that is enough for your model.…
- kenny
- 1 mth ago
- 1
- TOUGH2
- Reported - view
Re: possibly bug in viscosity calculation in TOUGH3_EWASG
Hi Norihiro, You are absolutely correct. The problem is caused by not updating the DW0 for the case IE(4)=6. This problem can be fixed by insert following two lines into (bold lines) the subroutine…
- kenny
- 1 mth ago
- TOUGH3
- Reported - view
Re: possibly bug in viscosity calculation in TOUGH3_EWASG
Hi Norihiro, Thanks for reporting the potential bug. I am very interested in investigating this problem. If you can provide your input files, it will be a great help. Kenny
- kenny
- 1 mth ago
- TOUGH3
- Reported - view
Re: Use of AMRES in TOUGH3
The AMRES is used to control the exiting of Newton iteration when mass/energy residual is large. It was commented out by someone for some reason. I guess it may not be significant on convergence…
- kenny
- 2 mths ago
- 1
- TOUGH3
- Reported - view
Re: Is this normal?
In the main input file (INFILE or other name) of your model, there are some hidden characters following the input data of data section of "GENER". If you delete these lines and replace them with a…
- kenny
- 2 mths ago
- TOUGHREACT
- Reported - view
Re: closed loop borehole + reservoir capability
If the flow inside wellbore can be simplified as Darcy flow, you can use TOUGH3 for your simulation. For a closed loop system, the heat exchange between wellbore and surrounding rock through heat…
- kenny
- 4 mths ago
- TOUGH3
- Reported - view
Re: Questions about TOGA
We spotted several bugs in the early version of TOGA. We updated it on 07/2022. Please make sure you are using the latest version of the code.
- kenny
- 4 mths ago
- Questions & Answers
- Reported - view
Re: TOUGH3 installation issue
This problem has been raised many times. It has been solved in TOUGH3 V1.11. The problem is caused by the compactivity of different compiler versions. You may try:…
- kenny
- 4 mths ago
- TOUGH3
- Reported - view
Re: T2Well/ECO2N mesh software recommendation
I do not think there is a specific mesh generation tool for an anticline structure. Probably, you need a program that can generate unstructured grid, such as Wingridder, MVIEW.
- kenny
- 4 mths ago
- TOUGH3
- Reported - view
Re: TOUGH3 installation on PC updates: Install Ubuntu Terminal and then install TOUGH3
TOUGH3 is licensed software. You may order it at LBL Marketplace: https://marketplace.lbl.gov/tough/
- kenny
- 4 mths ago
- TOUGH3
- Reported - view
Re: Increasing Injection Rate
The injection rate must be physically meaningful. If the formation permeability/porosity remains the same, you have to increase the "mobility" of injection fluid to get higher injection rate.…
- kenny
- 4 mths ago
- TOUGH2
- Reported - view
Re: How to resolve the flow non-convergence in eco2n module?
Are you using the correct EOS module? For high temperature CO2 injection simulation (T>110C), you need the ECO2N V2.0.
- kenny
- 5 mths ago
- TOUGHREACT
- Reported - view
Re: TOUGH3/ECO2M input problems
I did a quick look and found some problems. Once you correct the bugs in your input, the model should run normally. Main problems include: (1) MOP(15) =5 is not correct,…
- kenny
- 5 mths ago
- TOUGH3
- Reported - view
Re: Assistance Needed with Methane Volume Quantification in EOS7C Model
@Jordon Massey Seems the formatting is not correct. The easy way to correctly input the pair of connections is to copy it from MESH ( 526 527). Fluid velocity between elements can be included in the…
- kenny
- 5 mths ago
- TOUGH3
- Reported - view
Re: Assistance Needed with Methane Volume Quantification in EOS7C Model
Jordon, I believe Alfredo have answer most of your questions. I would like to provide some supplements. COFT works for printing flux between user specified connections.…
- kenny
- 5 mths ago
- TOUGH3
- Reported - view

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