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EOS5 / custom capillary-pressure modification: negative pressure and convergence issues when using nonzero entry pressure
Hello everyone, I am working on a TOUGH3 EOS5 case for a Nuclear waste-cell / FORGE-type model with water + hydrogen and a rectilinear mesh. I modified the capillary-pressure handling to use a custom…
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TOUGHREACT/EOS5 serpentinization
Hello All, Is TOUGHREACT / EOS5 able to simulate the process of serpentization that can lead to the production of natural hydrogen? I know that EOS5 is intended for transporting hydrogen in the…
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Can TOUGHREACT be used for mineral sequestration in rock formations?
The TOUGH simulation of mineralization storage I have seen is all about storage in saline aquifers. Can it be used for in-situ mineralization of rock formations and rock masses.
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Question: Modeling Natural H₂ Generation via Serpentinization in TOUGHREACT (EOS5/EWASG)
Dear TOUGHREACT Users, I would like to ask for guidance regarding the simulation of natural hydrogen (H₂) generation associated with serpentinization and Fe-mineral redox reactions using TOUGHREACT…
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Question: Modeling Natural H₂ Generation via Serpentinization in TOUGHREACT (EOS5/EWASG)
Dear TOUGHREACT Users, I would like to ask for guidance regarding the simulation of natural hydrogen (H₂) generation associated with serpentinization and Fe-mineral redox reactions using TOUGHREACT…
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Usefulness of TOUGH to determine mixed strata permeabilities
Totally newbie to this software package, SOOOOO- 1) We are wondering if there is a 3D simulation package that could simulate permeability rates, both vertical and lateral,…
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Question about ECO2N V2.1 temperature limitation
I am currently running simulations using TOUGHREACT V4.13omp with the ECO2N V2.1 equation of state. During the initialization, the code outputs the following message: “Running ECO2N V2.…
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Automated Run-Time Control of TOUGH4 Simulations Using OpenCLAW
Hi everyone, I’d like to share an approach we’ve been using to automatically monitor and steer TOUGH4 simulations during run-time, without modifying TOUGH4 source code.…
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TMVOC-Temperature is out of range
Hello everyone. I'm currently learning to use TMVOC, but I've encountered some problems. I've successfully simulated flow under only rainfall conditions, constant head, and isothermal conditions.…
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2 versus 3 phase relative permeability
Hi, I hope I can get some clarity on this issue. When you use 2 phase relative permeability to represent a 3-phase situation (for example water, CO2 gas and CO2 liquid in ECO2M),…
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TOUGH3-EOS7C failed to converge after 10 years
Hello, I am simulating an injector and producer doublet in a gas reservoir with TOUGH3-EOS7C. It runs well for the first few years and then struggles to converge with very small time steps…
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Compiling TOUGH3 source code using quadruple precision
My understanding is that when using double precision, it is generally best practice to avoid models where permeabilities vary by more than ~8 orders of magnitude (defualt `dfac`?).…
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EOS7Energy Efficiency Calculation
I want to perform cyclic injection and extraction to obtain energy efficiency. I have set the energy efficiency using the following calculation formula.…
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TOUGHREACT: single run vs. segmented time runs
Hello everyone, I have a question that has been puzzling me for quite some time regarding TOUGHREACT simulations. If I run a simulation directly for 100 days, and alternatively run it in segments (e.…
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Tough+Hydrate not running 10k+ mesh on windows, How to compile source code on ubuntu
Hello Toughers. My simulation runs great if number of mesh elements is less than 10k. I have computer with 16gb RAM. I read solution is to compile source code on Ubuntu.…
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Flow and chemistry nonconvergence issue
Hello everyone, I'm trying to simulate the 3D CO2 injection scenario using TOUGHREACT V4.13omp. I have given the in-situ mineralogical, petrophysical, injection and reservoir properties but the…
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Web application toughio-dash released to public
Hello, The web application I developed to pre-process TOUGH input files has been released to the public and can be accessed via: https://toughio-dash.lbl.…
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Error Message
Hello everyone, I am getting an error message when I run my T2well-ECO2N file. The error message is: At line 210 of file t2f.f (unit = 5, file = 'stdin') Fortran runtime error:…
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FOR parameter under PARAM.3
I recently changed the default value of the `FOR` parameter under PARAM.3 in TOUGH3 (EOS5) from 1.0 to 0.5. Upon reviewing the output, I noticed the time values in the time-series data seem to be…
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TMVOC
Hello everyone. I want to learn something about TMVOC from everyone.I am using PetraSim 2022.1 with TOUGH2.1 (TMVOC) to model a toluene spill in the subsurface,…
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TMVOC
Hello everyone. I want to learn something about TMVOC from everyone.When I was simulating the initial groundwater flow using TMVOC, the simulation results showed that gas disappeared and was…
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Questions on MNEL and MNCON recommendation in Windows machine and dt validation
Hello, I have two questions regarding TOUGHREACT runs. In the flowpar_v3.inc and for Windows machine, what do you recommend for the maximum values of MNEL and MNCON?…
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Question about Gas Relative Permeability ($k_{rg}$) calculation for IRP=7 in TOUGHREACT v4.13 (EOS3)
Hello everyone, I am a university student and recently started using TOUGHREACT v4.13 (with the EOS3 module). I have a question about the gas relative permeability (k_rg) formula used when IRP = 7…
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Help TOUGHREACT 3.32 with EOS7 Module for Air Injection into an Aquifer
I am using TOUGHREACT 3.32 with the EOS7 module to simulate air injection into an aquifer. The total simulation time is 50 days. During the run, the iteration progress is very slow with small time…
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Porosity change by pressure change in TOUGHREACT
Hello, TOUGH community, In my flow simulation with TOUGHREACT, I observe pressure changes by fluid injection. Here, I find that without chemical reactions,…