TOUGH2 Category

Circulating same produced fluid

Hi I am using TOUGH2-ECO2N module for CO2 injected into brine filled reservoir. I am trying to simulate where the produced fluid has to be circulated back into the system.…

error message when using EXT.exe

Hello TOUGH users and specially Stefan, I need to export TOUGH2 results to Tecplot. I used EXT.exe but afte 6 timesteps this error message appears: forrt 1: severe <64> input conversion error,…

XAIRL in volume element with no liquid phase

Hello TOUGH users! I am simulating a simple diffusion problem with EOS3. In my model, I have a volume element which is fully saturated with air and the rest of volume elements are fully saturated…

Help with defining basic Confined and Unconfined Aquifer and transport models

Hello All, I am brand new to PetraSim and have been trying to learn to make basic models of confined and unconfined aquifers, model advection-dispersion,…

Gas relative permeability: equation ???

Hello everybody, I have one question regard the document Tough v2, in "tough v2.0 manual" , we assume krg=1-krl if Sgr=0, we found that this is very strong assumption and which is not confirmed by…

Error on installation

I'm trying to install TOUGH2 for EOS2 and I'm having trouble in the compilation. I'm not sure if the code is right and when I type it, I receive this message.…

Oil relative permeability in EOS8

Hi All, I am trying to set up the input file for EOS8 module to run a water flooding oil case. As from the manual, the oil relative permeability is set to be linear with respective to oil saturation…

A problem with my simulation with EOS9nT

I have some problems in my modelling project with EOS9nT. In my example I want to simulate the nuclide release and transport process in a disposal site with a 3-D model.…

MINC Varying Fracture Spacing

After reading the manual, I can't tell if it is possible to vary the fracture spacing between different gridblocks using MINC in TOUGH2. Is there a way to do that? Thanks, John

Making input file

Hi all I am pretty new to TOUGH code and my domain problem is trapezoid. Actually, it is hard for me to make my input file boundary in notepad manually.…

Suggestion in change the GENER

Hi, Dear all, I want to add a feature about delaying / shutting the production well with wellbore deliverability modulue. The manual said the production well with wellbore deliverability can not be…

Time stepping in dry-out zones

Hello all, I know it is a general question, but any hint will be appreciated. I am running a 3D model of CO2 injection into a layered aquifer using the ECO2N module.…

Using MINC to represent groundwater flow in fractured porous media

Hello, I am investigating whether TOUGH2 will enable better characterisation of groundwater flow than more basic, single porosity packages like MODFLOW.…

Numerical Methods and Meshing Strategies

Hello, I am writing a research paper on different reservoir simulators in the market today. For the TOUGH simulators, I would like to get more information about the numerical methods that are used…

Element Numbering

I am wondering what convention is used for the alphanumeric (described online as AAAII?) element numbering. For instance: cell #1 = 001, cell #1000 = A01, but I'm not able to figure out the pattern.…

Budget zones

Hi, i need to define the water budget in the geothermal system that i´m modelling, so i want to know if it es possible to define budget zones in TOUGH2 like in other softwares (e.g. Visual Modflow).…

EOS7C - time stepping problem

Hi everyone, I am using the EOS7C to simulate a pumping test (production well) in coal seam gas aquifer with hydraulic fractures. I used automatic time stepping (MOP (16) = 2),…

Problem 5: TCE Spill

Hi everyone, I use TMVOC to reproduce the problem n°5 in the T2VOC User's Guide with an additionnal VOC, which is PCE (tetrachloroethylene). I am a little bit stuck as I try to run the first part.…

udell-fitch test

Hi, I wanted to re-create one of the original Udell-Fitch input file. Copying the input from the original tough manual, the attached is what I have. When I run it, I get an initial setting error.…

Convergence issue with 1D model for both PFLOTRAN and TOUGH2

I thought the developers of TOUGH2 maybe interested in this problem as well. I'm using EOS3 to solve the two phase problem. The left end of this model is atmospheric open air boundary condition at 0.…

Analytical solution for TOUGH2-ECO2N

Hello I am currently using TOUGH2-ECO2N. I would like to compare and check my numerical results with an analytical solution. I am wondering if "Theis solution" is applicable to simulate the CO2…

about the output files of TOUGH-2: EOS9nT

For our research project I need to simulate the radioactive waste transport problems with EOS9nT. I am just at the beginning with learning EOS9nT, however, I have the problem about its output format.…

perm. factor

dear all, I want to ask the "perm. factor" in "set cell data", (ex: I want the domain area's K field mean=1E-13 and standard deviation=1E-14) Does it means that I can use Excel to generate a random…

Disappearing gas phase during simulation of CO2 injection

Dear all, I am trying to simulate an injection of CO2 into a brine saturated aquifer with Toughreact 1.2 and ECO2N EOS module (1D, radial). Everything works fine until the gas saturation Sg in the…

Is there a possibility to extent the TOUGH2 pressure range?

Hello everyone, I am using TOUGH2 to simulate two phase flow in deep subsurface waste repositories. The pressures in the systems can reach quite high values due to gas production and high…