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Mole fraction Output from ECO2N
Hello Trying to get CO2 mass- and mole fraction in aqueous phase and H2O mass- and mole fraction in gaseous phase from a run with iTough2 and ECO2N in a simple radial 1D model where dry CO2 injected…
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Alternative for running immiscible brine-CO2 system
Hello folks, Sometimes you may need a reference or a benchmark to see the effect caused by implementation of an EOS as a whole. For a Brine-CO2 system, even unphysical,…
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Error1:Program received signal SIGSEGV: Segmentation fault - invalid memory reference
Hello, I have been working on a model for several months, and now when I run my model, I have the following error: Program received signal SIGSEGV: Segmentation fault - invalid memory reference.…
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How to account for evaporation Sw initial < Swir
Hi all, I am trying to model infiltration in unsaturated media using EOS9. I believe that in reality my media started with an initial water saturation that is lower than the irreducible water…
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Error in EXT.exe
Dear team, I encountered an error when using the EXT.exe. I have completed the simulation by Petrasim. But, the CMD indicated that ' forrt1: severe (161) : Program Exception - array bounds exceeded'.…
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Not to achineve the end time and no error
Hello everyone, I am trying to run a geothermal reservoir model with EOS1 to predict a production rate for 10 years and the calculation did not achieve the setting end time.…
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How to consider the evaporation effect of water affected by temperature in tough2
How to consider the evaporation effect of water affected by temperature in tough2 (or what is the governing equation of water conversion in liquid and vapor)?…
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How to compile T2Well-ECO2N v1.02
Dear all I had downloaded the source code of T2Well-ECO2N (T2Well-ECO2N_Source_v1.02.zip), and I am now trying to compile it by gfortran on a WSL environment.…
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Maximum point for time-dependent injection
Dear all, I am trying to prescribe more points for cyclic injection scenario. I checked the TOUGH2 manual, which indicated to use LTAB for the number of points in the table of rate vs time.…
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Calculating flow rate in a well on deliverability model
Hello everyone, I am trying to figure out the best way to calculate gas flow rate in a well. my approach is to first print out a COFT file and then sum up the values of flow rate between cells.…
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Mobility concept in TOUGH (Parameter MOP(11) )
Hi dear group, I hope this wouldn’t be a silly question I am working with an unsaturated column composed of sandstone and mudstone layers. As first step (and using EOS9),…
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TEMPERATURE = 0.000000E+00 OUT OF RANGE IN SAT
Hi All, I am a newbie to the TOUGH simulator and trying to create a small model for brine injection using EOS7 module. While I am trying to run the model,…
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Radial mesh
Hi all, I am using radial mesh to model a column, which is defined by R and Z. Is it possible to model only 1/4 of the column with a theta (θ)? I don't see where to set this. Regards, Antonio
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Why does the partial pressure of carbon dioxide change so much when SG is greater than zero?
I use eos2 to simulate phase transition (phase change) it is a very simple model to study the Pco2 change. but it is a little bit hard to explain. I found SG>0,…
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Steady-state simulation of a low-type geothermal system
Dear TOUGH2 Users Good morning/afternoon This is my first post to this forum and I’d like to receive guidance and help to perform a steady-state natural simulation model of a low-type geothermal…
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Liquid saturation definition
Recently, I showed my simulation results to my colleagues. I was asked a question, what is the liquid saturation and gas saturation. I have tried to explain, but I was confused finally.…
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Can we used a Neumann boundary condition for temperature simulation in TOUGH2?
If I know the heat flux (18 W/m^2), should I use the Neumann boundary condition? can I use it in TOUGH2? Thanks
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methane leak and plume migration in subsurface from hydrocarbon wellbores
Hi There, I would like to know what module would be best to simulate methane leakage and plume migration in the subsurface from hydrocarbon wellbores? I did some digging and came across some…
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MINC processing for fractured media
Dear all Members, Hi, I am working on fluid flow modeling in fractured media and I am using MeshMaker 1.5 to for MINC processing and mesh making. After entering the command codes,…
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General question about Capillary Pressure
In terms of flow I still struggle to understand the reasons/use of having capillary pressure as an option in ROCKS. How different is flow when it is disabled?…
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Executable or Source code?
Hello everyone, I copy and paste this question from THOUGHREACT Forum because some people may also can help me with this basic issue. In the upcoming days,…
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TOUGH2; grids; running time too long
Hi! I used TOUGH2 for a transient fluid flow analysis (total time for 1 year) using grids showed in the figure. Element volumes range from 1.0e-04 to 2.0e-1.…
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In-situ Combustion for Oil and Gas
Hi everyone, My company is considering to get a TOUGH license and wondering if it is suitable for our project. I am wondering if we can use it for in-situ combustion for oil and gas extraction.…
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Issue with using EXT for extracting data from TOUGH2 MESH and OUTPUT files
I have compiled and linked the EXT fortran source codes downloaded at: https://tough.lbl.gov/licensing-download/free-software-download/. I received the following error messages when using the…
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How to conduct a both saturated and unsaturated analysis in a computational domain?
Hi! Recently, I have been focusing on simulating the evaporation of moisture at a cavity surface to see the desaturated process near the cavity surface using TOUTGH2(EOS3).…