TOUGH2 Category

How can the relationships between permeability (k/k0) and porosity (Φ/Φ0 ) in the fault be changed?

I am using ECO2N to simulate CO2 leakage in a geological formation with a fault (See the fig). I need to apply different relationships for permeability (k/k0) and porosity (Φ/Φ0) between the fault…

EOS9:FOLLOWING TWO STEPS THAT CONVERGED ON ITER = 1

Hello, It looks like I am running into this exact issues described on page 10 of the Tough2 user manual (copied below). What suggestions do you have when this occurs?…

How to set up semi-analytical method to calculate heat transfer in t2well?

Dear TOUGH community users, Could you please advise on configuring the semi-analytical method for computing heat transfer in t2well-eco2m? As far as I understand,…

ECO2N / ECO2M: handling of wettability in a dry zone

Hi folks, When exposing the initially brine-filled grid cells near injection point to CO2 injection, a dry zone is established. At a certain condition of flow and rock properties water saturation…

Print out of permeability reduction

Hi guys, Anybody out there could send me a piece of advise how to get permeability reduction "k-red" printed out when running Tough2 with ECO2N? I tried a couple of things in "OUTPU" and "SELEC",…

Initialization problem for ECO2N Problem No. 4 (rtp7)

Hello everyone, I'm new to TOUGH2.In running the fourth example of ECO2N, I don't understand how to set the initial conditions. 1. The manual mentions only involving boundary grid cells with…

Unable to execute code due to plugin not found？

Hello everyone, how can I solve this problem? I tried downloading the corresponding plugin but still couldn't solve the problem.

GENER : COM1 vs MASS type ---->Pumping water from element in a 2phase flow problem

Hello everyone, I want to pump water from a certain elements using EOS7R. I'm confused between using: 1. "COM1" as a type and a negative value of the rate (< 0) to mean that I extract water from this…

TOUGHREACT1.2/ECO2N: About the inject rate and maximum pressure

Hi, everyone I'm using TOUGHREACT1.2/ECO2N with Petrasim. I am simulating the injection of CO2(isothermal) at a constant rate of 6.5kg/s（just one GENER）using a rectangle mesh,…

Doubts about the integrated finite difference method (IFDM)

Hello everyone, I am conducting a comparative study between the TOUGH and DARTS simulators. I went through the basic documentation to understand how both simulators work,…

Define Constant Injection Pressure

Dear all members, I tried to model water injection with defining constant pressure instead of constant injection rate in ECO2N but I encountered no changes in the model.…

Results file not found (ECO2M, TOUGH V2.1), no .csv file generated

Hello everyone, I am solving the TOUGH exercise (ECO2M Example: CO2 Injection Well). After successfully running Tough v2.1. I am unable to view (3D Results) the results.…

Help deciding EOS7C or EOS7CA

Hello, I am a researcher looking to model gas (CH4) accumulation beneath a capillary barrier in the shallow subsurface. Currently I have EOS7C available for use but I am considering purchasing TOUGH3…

Converting single porosity mesh into dual porosity (dual-perm) mesh

By any chance, does anyone know a way of converting single porosity mesh elements file into dual porosity (dual-perm) mesh model file (with correct connections)? Would appreciate any feedback.…

Printout problem with TIMES

I want to use DELAF function in TIMES, but no matter how I assign the value, the printout in FOFT won't change. Is there any format error in my input file?

Can ECO2N simulate the CO2 phase transition?

Hi guys. I have a question about ECO2N. I want to know if ECO2N can handle CO2 phase change. I would like to simulate the problem of liquid CO2 injection into a reservoir,…

The pore pressure decreased near the non-reservoir wellbore during the CO2 injection process

Dear TOUGH community users, When I used T2WELL/ECO2N to simulate carbon dioxide non-isothermal injection, I found that when using cryogenic supercritical CO2 injection,…

Modelling of high temperature (600 ℃) air injection.

Hi everyone, I am seeking guidance on the feasibility of utilizing EOS3 to model the injection of high-temperature air (600 ℃) into an aquifer. The anticipated pressure range within the model domain…

Calculated gas pressure despite zero gas saturation

Hello TOUGH2 community, I am running few simulations using EOS5 (water/hydrogen) with injection of hydrogen in a HLRW waste cell configuration. I want to monitor the pressure build-up.…

How to implement the Mandel's effect with tough-flat coupling

Hello everyone, I'm a student during master's degree and have spent more than a year on tough-flac coupling, but still have some big problems on this field.…

Can't assign more than 500 number of material?

Hello, I am new to TOUGH2. Now, I want to generate a heterogenous field in TOUGH2, and the mesh is 50*50. Every grid has a unique material, so there are 2500 material in my model.…

Simulated CO2 injection into aquifers using T2WELL/ECO2M did not run successfully

Dear TOUGH community users, I am new to T2WELL/ECO2M and I am simulating CO2 injection into the aquifer, establishing a model of 0~-900m, the aquifer is located at -750~-800m,…

Seeking help to solve ECO2M problems

Dear TOUGH community users, I have been struggling with the problem of not being able to successfully simulate running T2Well-ECO2M for too long and would like to seek help.…

low injection rate can induce the EOS CANNOT FIND PARAMETERS?

Hi，everyone I want to simulate the dissolution and precipitation induced by meteoric water injection (toughreact332_EOS1). I set injection rate 9.5129E-02 kg/s during 2Ma,…

how to calculate the amount of CO2(aq) in ECO2N

Hi, everyone, I'm want to know the meaning of "XCO2(aq）" in the file of flow. out and how can I calculate the amount of CO2 which was sequestered by dissolution capture?…