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Non-Darcy flow of oil above bubble point
In blowout simulations of proposed (not yet drilled) oil wells in the Gulf of Mexico (Worst Case Discharge, aka WCD) a simple radial reservoir simulation model is assumed and flowing pressure bottom…
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Non-convergence when considering permeability heterogeneity
Hello again, the non-convergence problem is still unresolved when considering permeability heterogeneity in my TOUGH2/ECO2N CO2 storage model. In this model I used the default/common parameter…
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Thermal Expansion Coefficient Of Water
Hello Forum, New poster here so please let me know if I should be looking elsewhere. I'm attempting to verify TOUGH2 against an analytical solution for 2D convective flow and one of the terms is a…
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Tough2 EOS7C Gas Production Simulation Questions
I use EOS7C to simulate gas production for 2 years. The model includes 1 overburden layer, 1 underburden layer and 1 reservoir layer. After 2 years of gas production,…
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"Inactive" MINC elements
I want to make sure I'm interpreting the manual correctly as it pertains to "inactive" elements in a mesh involving MINC processing. If I place a dummy element in front of all elements that I want…
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ECO2N non-isothermal issue
I'm injecting CO2 (at enthalpy 3.09E5 J/kg, about room temperature) to a reservoir having temperature range 50C to 100C, but the temperature at injection cell drop quickly to 3C after injecting that…
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Failure of convergence in the simple 1D flow model
Dear Sir or Madam, I just built a simple 1D flow model (EOS9). I found it could not converge with my experimental parameters, however, it worked when I changed the porosity and permeability, (i.e.…
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MINC interface surface area
Dear Stefan, I have been working with MINC for some time now. Just today, I found out that the interface surface area between two adjacent cells is the same for the fracture and matrix volumes.…
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EOS3 (precipitation, pressure)
Hi, I am doing my project in about numerical modelling of geothermal reservoir by Petrasim (Tough2-EOS3). I have a question about assigning unsaturated zone in top layer below atmosphere layer .…
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Making binary output from Tough2 (run with iTough2 enhancement)
Hello guys, I tried to get mesh/grid and properties in binary format using MOMOP MOP2 item 24 but failed. Any advise?
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Radial Heat Pipe problem
Hi all, I'm hoping someone else has run into this question before. I'm trying to run the radial heat pipe (rhp) sample problem found in the TOUGH2 Manual.…
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Question on modeling landfill gas migration
Hi, Which module should I be using if I want to model landfill gas (mainly consisted of methane and carbon dioxide) migration in soil/liquid? I have heard of the EOS7C module,…
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Nonisothermal Co2 Injection using ECO2N convergence issue
I am running a non-isothermal case for Co2 injection using ECO2N. The injection cell temperature is set to be 60 degree compared to reservoir temperature of around 105 degree.…
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ELEME6 Block?
Hey everyone, I used MESHMaker to create an axisymmetric mesh (RZ2D), and it created an ELEME block with 6-digit character codes (titled ELEME6). Is this due to the number of elements I requested?…
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Problem with building heterogeneous CO2 storage model
Hi all, I need to build a CO2 storage model with heterogeneous permeability field using TOUGH2/ECO2N. I built a homogeneous model first and it could be ran successfully.…
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Problem initializing a low permeability EOS7C simulation
Hello, I am trying to set up a model with EOS7C, with which I plan to simulate methane generation within a large, low permeability domain over a long period of time.…
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Setting conditions for not boundary blocks
Hello: How can i set a constant temperature condition for not boundary blocks with constant flow? How does it works for a non isothermal case? Thank you for the answers.
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No primary variable data are displayed in output file.
Hello, I'm trying to mimic darcy's law with EOS1 module. I made a model and simulate with the below input files (the first and second figure). I think the simulation ends successfully,…
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Compilation of source code files
To increase the maximum number of elements in Tough2 above 12000, we changed the T2 file in the fortran source code, and are now trying to compile the source code files according to the instructions…
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How can I simulate the thermal diffusion (Soret effect) ?
Dear everyone, I am New in using TOUGH, i want to simulate the thermal convection of a binary mixture methane & n-butane in non-isothermal condition. I want to take in consideration the soret effect.…
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Input data file vs Disk Files
Hi All, I am very new to TOUGH2. In my case, I run initial input data file then I have Disk Files generated from TOUGH2 input file after running, these are : INCON, MESH, GENER, SAVE, etc.…
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Does the thickness in y-direction matters when using XYZ to generate X-Z mesh?
Hello everyone, I am using the TOUGH2/ECO2N code to simulate the injection of CO2. I intend to use XYZ MESHMAKER to generate a 2D X-Z mesh. So I want to ask that whether the thickness in y-direction…
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No show of SAVE and savechem files in restart option
Hi, I am running TOUGHREACT though, I think it's also applicable to TOUGH2 users. I am trying to use restart option, but I can't find those two output files (SAVE,…
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Starting with TOUGH2v2
Hello everyone, I have TOUGH2 distributed by NEA. I recieved a DVD containing TOUGH2 source code, all of the EOS modules with '.F ' extension, and some input data for the sample problems.…
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Save file
hello, I've loaded initial condition (from a proper save file) and when the model finished the save file was empty. and in the OUTPUT file it says that it's not exist.…