TOUGHREACT Category

Is this normal?

My GENER file changes to chinese characters during a simulation. What could cause this?

Sourcing injection fluid in ToughReact

A clarification is needed regarding ToughReact when run with ECO2N: Think of a situation where a carbonated brine is defined in “chemical.inp” file for injection purpose.…

HELP!!! Regarding the issue of being unable to simulate flow given multiple rock types~THX!

I am currently using TOUGHREACT V3 software and ECO2N module for flow simulation. When all the first domain is given in ELEME, the simulation is successful;…

initialization of water composition

Hi， Recently, I tried to use toughreact (EOS1) to simulate fluid-rock interaction including dissolution and precipitation. But it always reminded me “convergence problem in initialization of water…

Help needed- Wellbore simulation

Hello Everyone, I am writing to seek help with a flow problem. I have discretized a domain containing 26 layers. I want to inject CO2 into the lower part of these layers (say last 11 layers),…

Toughreact courses or workshops

Hello everyone, I'm new to using toughreact and would like to learn a bit more and improve. Does anyone know if there will be any courses or workshops this year or next? Thanks

How to resolve the flow non-convergence in eco2n module?

Hello, I'm trying to simulate CO2 geological storage in aquifer composed of andesite rocks at high temperature condition, 200 degC. The CO2 was injected for 10 years and run a 1000year simulation.…

An issue (experience) with very large mesh

Hi all Just to share my experience. I have a very large mesh (6E5 grid cells). Surprisingly the name of some elements start with "END" (like END 1, .. END10 etc).…

Simulation result files always maintain their original size

Hello everyone, I am using TOUGHREACT to simulate the chemical reaction of CO2 injection into deep saline reservoirs and caprocks. The input files I defined are as above,…

TOUGHREACT-ECO2N calculation of fugacity of CO2

Hi, I am a new user of TOUGHREACT. I am using ECO2N to simulate diopside dissolution and carbonate mineralization in a temperature range of 6.4˚C - 18.9˚C and a pressure range of 0.1 - 5.1 MPa.…

CO2 water-rock reaction does not converge.

Hi everyone： I recently used toughreactV1.2 to simulate CO2 sequestration. The total simulation time was 1 year, but unfortunately the model did not converge.…

Exothermic reactions

Hello, I was wondering if it is possible to simulate exothermic reactions with ToughReact? And in yes how to do that? Is there an example or a paper describing this? Thanks, Pierre

Injector Fluid w/ Changing Composition

Hi all, I am looking to model reservoir response to changing injection water composition and am seeking advice on how to do so. Specifically, I am wondering if it would be best, and/or feasible, to 1.…

Error with secondary species not found in thermodynamic database

Hello I am trying to run a TOUGHREACT simutlaion and everything is fine up until it reads the thermodynamic database. I get this error: "Error: The defined secondary species:…

Injection question

Hello everyone, Is it possible to run TOUGHREACT by specifying the injection pressure, and not the flow rate? This way, the pressure specified will determine the rate of injection.

New entries into Thermodynamic database

Hi, I am looking for a piece of advise on how to put a new entry for a new type of “Glass” into the database attached to ToughReact v3.3. Looking at the file I have,…

Problem 5.3 Problem No. 3 (r1dv) - CO2 Discharge Along a Fault Zone from the ECO2N manual.

Hello everyone! I am trying to reproduce Problem 5.3 Problem No. 3 (r1dv) - CO2 Discharge Along a Fault Zone from the ECO2N manual. I am having trouble correctly generating the mesh.…

The TOUGHREACT V4.13's calculation time is long

Hi everyone, I have been trying to run TOUGHREACT V4 Deep Salt Formation 2-D Radial Model Problem 6 with the instructions in the manual. However, I encountered the following two troubles:…

How to terminate TOUGHREACT when chemistry does not converge

Hi, everyone: Once setting a new TR simulation into running, the first file i regularly check is runlog.out to see if chemical calculation is doing well.…

Run result SMCO2 is always 0

Shalom: This is an example of website 3.0 why SMCO2 has been 0 Thank the reply

Temperature dependence cation exchange

Hello, I included cation exchange in my simulation, in which I simulate injection of hot (90 degrees C) water into a relatively cold aquifer with the exact same composition.…

In ECO2N, the injected co2 gas is mixed with a certain amount of so2

hello: I would ask how the injected co2 gas in ECO2N contains a certain amount of so2. Is the setting method like me correct. Thank you for the reply. Thank you

TOUGHREACT ECO2N

I want to use TOUGHREACT V3.0 ECO2N simulate the mineral changes caused by the co injection of different concentrations of SO2 and CO2, mainly observing gypsum precipitation.…

ECO2N(I would like to ask what figure CO2 means? Why is the mole fraction greater than 1?thanks)

I would like to ask what figure CO2 means? Why is the mole fraction greater than 1?thanks

How do I conduct a batch modeling of NaCl-water with primary minerals

Hello everyone, I am trying to conduct a batch modelling of NaCl-water with primary minerals in a rock sample over 10-year period to determine the brine composition and primary species in the rock.…