TOUGH2 Category

Temperatures reaching out of range in EOS2 despite no GENER block

Hi all, I am trying to run a model operating at temperatures close to the maximum modelled by TOUGH (360C) due to the system it is based on. Since this is only 13 C cooler than what is achievable by…

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.

slightly increased liquid viscosity

Hi, dear all I have one question about eos1. To construct a sensitivity matrix 'co' in subroutine 'multi' , we obtain secondary parameters using slightly increased primary variables,…

Increase maximum number of elements/connections

Hi, I’m trying to increase the maximum number of elements/connections by recompiling the source code ( I’m on a Windows 7 64 bit pc and access gfortran through Cygwin).…

How to simulate bubble flow in non-Newtonian fluids (such as drilling mud)?

I am trying to create multiple simulation scenarios, one of them is to simulate discrete bubble flow through drilling much, which is also a non-Newtonian fluid.…

Problems with ECO2N V. 2.0

Hi All, I am experiencing some problems with the latest version of ECO2N. I have a series of simulations that run fine using ECO2N V1.0. However in version 2.…

ECO2N Steady state

Hi everybody! I'm a new Tough2 ECO2N user and i'm experiencing some problems by reaching the steady state condition... I will use it as Initial conditions for the simulations.…

Porosity, Permeability and Capillary Pressure Modification Block by Block

Hi All, I've read in TOUGH2 manual about how to change permeability and capillary pressure of each element using PMX column in element block. But I find some problem when I need to change…

How to model a leakage around existing well annulus in TOUGH

We are trying to model gas leakage around exisiting well annulus (The space between wellbore and casing, where fluid flow can occur). However, the aperture is relative large and I wonder whether this…

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,…

To have "Component mass in place" in a single cell

Hello everyone , In the output file of TOUGH2, for each plot time value, there is the -component mass in place- table, in which I think, are reported the mass of each component referred to the total…

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…

injection using well on delivery

Hello, What is the correct way to use the well on delivery option for injection? Background: I'm using EOS7C and attempting to inject methane into my modeled domain at a depth of about 30 m below…

Zero flux conditions

Hello everyone , Could someone explain to me how to impose the zero flux conditions in a generic domain? Thank you.

The CO2 plume migraion is very strange.

The CO2 plume migraion is very strange. Can anybody tell me why is this case? Thanks very much. Sawyer.

Implementing meteoric recharge into atmospheric boundary condition?

Hi all, Does anyone have a recommended method for specifying different rates of meteoric recharge to TOUGH2 models? Would specifying different air:water ratios in the atmospheric block work? Thanks,…

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.…

How to determine the influence of boundary size?

Hi all, when i use tough2(ECO2N), i'm not sure whether the boundary size i chosen is appropriate, can anybody tell me how to determine the boundary size? thans very much! sawyer

Generating initial conditions

Hi All, I am having problems generating initial conditions with the new version of T2ECO2N (v 2.1) that I have just purchased. Previously I would assign a large volume block at the top and base of…

Compilation mistake

I have been trying to use Tough2 version 2.1 in Windows 7 (64 bit) but it hasn’t worked. I am using the commands gfortran -c -O2 -fdefault-real-8 -fno-align-commons -fdefault-double-8 -funroll-loops…

How to set up source water volume as boundary condition

I have one question regarding how to set up the water source volume in petrasim/tough2. For example, the reservoir is bottom water type. There is water driven at the bottom of the reservoir,…

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.…

A question about the EOS9nT

Hello everyone, I have a question or problem about the EOS9nT in my recent research project. In the attachment you can see the guide example that we downloaded together with the source code.…

Turbulence in TOUGH2

So I'm doing a bit of modelling on modelling high permeability faults and was getting some large fluxes of fluid (yay!) but.... I was wondering whether TOUGH2 is accurately representing these systems…

permeable faults modelling

Hi there, Do you have any suggestion on modelling inclined permeable faults in tough2 model? how to refine faults zone only? Thank you very much Jing