TOUGH2 Category

ECO2M: Extracting Vector Orientation

Hello, I'm using TOUGH2-ECO2M and interested in extracting the "direction/orientation" of the vector output data (flow of heat, flow of fluid, etc), ideally generated in the same CSV format as in…

SAVE file

Hello ! For the case I'm working on, I've created and INCON file filled with cell-by-cell porosities, permeabilities (I,J,K), pressure and temperature.…

Specify the time-dependent BHP

Hi, everyone Can I set the time-dependent pressure in the DELV option? I wonder if it is possible to decrease the bottomhole pressure of the production well over time. Thanks, Young

EOS7 - Brine Definition & Tracing flow of brines

Hello everyone I am looking for more clarity on the definition of brine in EOS7. In the TOUGH2 user's guide V2, it states that, "The brine is modeled as NaCl solution,…

Temperature limits of various ECO2N versions

Hi Folks, Anybody can send me a few words on this: We have a version of ECO2N (as a part of iTough2.7.0.) which doesn't perform with T>103.4, same indication seen in CO2Tab data that is limited to…

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…

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,…

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.…

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…

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'.…

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.…

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)?…

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.…

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.…

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.…

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),…

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,…

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

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,…

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…

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.…

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

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…

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,…

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?…