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How to improve the stability of the numerical results without changing the grid discretization ?
Dears, I have the following simulation case for CO2 injection in stratified aquifer using 2D grid model. I have slight fluctuations in the pressure results.…
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Commingled injection well modeling
Hi, I am trying to model a commingled injection well which is a well completed through multilayers (5 layers in my model). Every layer in my model is represented by a single grid block in the Z…
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Mass balance of ECO2N
I was simulating constant CO2 injection into a 2D aquifer (salt not considered). For such 2-phase 2-component system, there should be 2 mass balance equations for CO2 and H2O, respectively,…
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T2WELL deals with time scale inconsistencies
Hello, everyone. I would like to ask how T2WELL deals with the problem of inconsistency of wellbore and reservoir models in time scale?
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van Genuchten - Mualem model
I am reviewing the RPCAP keyword with the G-M model (7). There are recurring terms Sl, Slr, and Sgr that are not defined in the User Manual. I understand "irreducible water saturation" is Slr.…
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How to interpret the data in CO2TAB file
I am trying to model temperature perturbation during CO2 injection in saline aquifer using TOUGH3/ECO2N. My INFILE is modified after the INFILE of "rcc3" sample case.…
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End time of simulation
Hello, I am trying to inject CO2 in a saline aquifer and I want to observe the results at 7 different timesteps form 1 year to a 1000 years. However, in some cases,…
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GOFT files only printing for one component (COM1)
Running EWASG and GOFT files are only printing for COM1 and not for COM3 (see my INFILE attached). I have two generation elements per node (the injection /production wells move two components,…
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EOS7c and NCG injection
Dear all, I am using EOS7c module, to model the injection of a NCG (either CO2 or N2) in a depleted CH4 reservoir. As soon as the mass fraction of the non-condensible gas X_NCG_G approaches 1 (i.e.…
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Parallel Output in TOUGH-3
Good Morning, I have recently started to experiment with using TOUGH-3 in parallel. When I output the simulation variables in CSV format, it seems to print certain parts of the simulation grid twice…
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termination criterion following two time steps for which convergence on ITER = 1
Hello, It looks like I am running into this exact issues described on page 44 of the T3 user manual (copied below). What suggestions do you have when this occurs?…
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T2Well in TOUGH3?
Hi, I was just wondering if TOUGH3 can be run with T2Well? I have previously modelled boreholes with two feed zones (inlet and outlet) in the T2Well/EOS1 research code modified by Dr Lehua Pan which…
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Display temperature and pressure change in 2D plot
Hi everyone, I am trying to visualize pressure and temperature results for 3D model that has initial pressure and temperature values described by hydrostatic pressure and geothermal temperature…
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gravity-capillary equilibrium in EOS3
hello, I am using EOS3 (TOUGH3-eos3 windows executable) to simulate a gravity capillary equilibrium along a 1-D column but I keep running to convergence failure issue.…
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Question on DELV control
Hi again ! I have a question about the use of the Deliverability well control : What is the parameter HG in the GENER keyword used for ? What happens when it's defaulted ? (HG thickness of layer, m;…
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How to deactivate the mutual solubility of CO2 - Brine mixture in TOUGH3/ECO2N
Dears, I am trying to model CO2 injection in saline aquifer reservoir. I would like to know if there is an option in TOUGH3/ECO2 to deactivate the mutual solubility between CO2 and brine.…
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Parallel execution of simulation using TOUGH3 in windows
Dears, I am trying to run a simulation case using TOUGH3/ECO2 in windows and the simulation run lasts for a long time (more than 24 hr for numerical model 1650*10 grid blocks).…
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How to find a grid index
Hi, I am having trouble finding a grid index. I used FOFT to show temperature changes over time. However, I could not find the specific grid index I wanted to show the results for.…
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EOS5 but Helium in stead of Hydrogen
Hello, I am trying to simulate a year long helium injection with varying rates using EOS5. I'm wondering if I would need to change something in the source code for this to run correctly,…
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Simple model test with ECO2N
I was testing the ECO2N module compiled by myself (Linux version). I built a simple model with 2 grids. I set pressure difference of 2MPa and gas saturation difference of 0.…
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Hysteresis and non-wetting phase entrapment saturation
Hello everyone, First of all, thank you all for your help. I have a question related to gas permeability. In a wetting process where \( k_g(1 - S_{\delta_{gr}}) = k_g(S_{l^*}) = 0 \),…
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Metis and parallel computing in Tough
Hi All, I found many descriptions about Metis in the User's guide of Tough2-MP. However, there is little description of Metis in Tough3. So, is Metis used in Tough3 for parallel computing? Moreover,…
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Can TOUGH3 EOS7C model temperature below 13 celsius degree?
I am modelling groundwater and gas migration using TOUGH3 EOS7C. I set up the model as an isothermal problem with a constant air temperature 5 degree (temperature assigned for atmospheric elements)…
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time range in GENER and PARAM
Hi All, The time steps shrinks to E-07 near the end of simulation period. I found this message in the OUTPUT file. QQQQQQQQQQ SUBROUTINE QU QQQQQQQQQQQ --- [KCYC,ITER] = [1452, 1] 0.…
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Set multiple processors in Windows cmd for TOUGH3 running
Hello TOUGH community. I am using TOUGH3 after compiling the codes with Microsoft Visual Studio in Windows. I can run the code with a single processor, but how can I set the multiple processors?…