TOUGH2 Category

Strange pressure output from EOS7C

I have been struggling for several months now to understand how pressure is accounted for in some TOUGH2-EOS7C simulations that I’ve been running. The fact that the code outputs a single “Pressure”…

MINC fracture spacing effect

Hi there, we are building a dual-porosity model in tough, I'm not quite understand how will the different fracture spacing affect the simulation result, when fracture volume fraction is the same?…

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.…

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 .…

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?

Restart option with PetraSim

Hello everybody, There is a procedure for the restart of a though2 run. I interrupted a run of Tough2, I can restart it where it left off? Thanks

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.…

Mass input in .out file

Hi everybody! Could anyone tell me if is it possible to see the CO2 mass input in petrasim output file? I've tried to check it on Volume and Mass-Balances, but it isn't there.…

EXT2 cannot extract data from output file?

Hi everybody I use Ext2 to extract data from my output file, but it cannot work out, the generated file is empty, i don't know where is the problem? The error and output file are as follows,…

Input file

Hi I got an input file that some cells are not included in ELEM block; however, they have some connections with other cells. Does it have any meaning or it is a mistake in making input file? Cheers

Help me? (EOS3) simulate a two-phase test.

Hi,everyone Right now, i want to simulate water drainage experiment, as first conducted by Liakopoulos(Liakopoulos, A.C., 1965. Transient Flow Through Unsaturated Porous Media.Ph.D. Dissertation.…

Water Enthalpy values

Halo, could somebody explain me, how to get (find, calculate, ...) values of enthalpy for water? (where I can find them?) I have find this table: https://www.thermexcel.com/english/tables/eau_atm.…

ROCKS ; assigning to specific blocks.

So I'm basically making a lump parameter model to get familiar with Tough 2. However I want to assign 3 different ROCKS conditions three different blocks.…

Can anybody explain the meaning of DELV in GENER?

I'm not very clear about DELV and EX, can anybody help me? thanks very much! sawyer

Permeability Modification option EOS7R

Hello everyone, Please, does anyone know if the permeability modification option may be used in EOS7R?

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,…

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.…

CO2 injection into a CO2 saturated reservoir

Hi everyone, I'm running a test to check the results regarding to inject CO2 into a reservoir with a CO2 mass fraction=1. SG attached starts at 0 and the value raises with time.…

Numerical instability with water vapor condensation in ECO2M

Hey everyone, I've run into an issue trying to make the transition from a saturated gas to a 2-phase stream composed of a wetting aqueous phase and a gaseous CO2/H2O(g) mixture.…

water table

Hello everyone ! I have some brief questions which I need to find an answer too. I emailed the developers but didn't receive a response in the last week. My questions are as follows: Q1.…

Error in name first ELEM in mesh file

Hi, My model has 120.000 nodes and 320.000 connections was created with Mview. I remove the inactive elements.I get the error message below. There seems to be something wrong with the element naming.…

TIMAX in INPUT File vs Time written in OUTPUT File (ECO2M)

Hi all, I do not really understand about the case, I set up the TIMAX value in PARAM block of TOUGH2 Input file with 31556952.0 (second) or around 1 year,…

Calculating Total Density from TOUGH2/ECO2M Output file

Dear all, I am sorry maybe this is a simple questions, but I need to know it. When I run injection CO2 with eco2m module for my model with initial conditions as follow :…

How to calculate CO2 flow rate from COFT file

Hello, I'm simulating CO2 injection to layered media. I used a COFT function to check the flow rate of CO2 . I input CO2 injection rate at 0.01 kg/s. Attached figure is a part of the COFT file.…

Hydrostatic pressure (gravitation equilibrium)

Hello, I'm practicing TOUGH2-ECO2N module with example problem number 4. I want to simulate CO2 injection and its behavior. My model which uses just one formation (first figure) is more simpler than…