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Batch Model with Brine Injection and Secondary Minerals Precipitation
I am attempting to set up a batch reaction model. Initially, the formation water equilibrates with calcite, gypsum, albite, illite, and k-feldspar. Then,…
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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…
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TOUGH3 vs TOUGH2-MP Printout of Mass fractions in single phase
Our understanding is that adding all component mass fractions of a phase add up to one. In TOUGH3 (or at least using eos3), it would appear that this is not the case.…
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Speciation with brine using Pitzer
I am trying to run a simple speciation problem with a brine composition in contact with some minerals (like Albite, Barite, Illite, K-feldspar etc.). The idea is to use the results of the speciation…
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Effect of Mesh Size on the Kinetics of Two-Phase Flow (Diffusion vs. Advection)
Dear all, I have a question regarding the mesh size and its impact on diffusion in two-phase flow. I'm curious to know if the mesh size affects the diffusion from element0 to element1.…
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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.…
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Two phase flow (Diffusion vs advection) with mesh sizes
Dear all, dear Finsterle, I have a question regarding the mesh size and its impact on diffusion in two-phase flow. I'm curious to know if the mesh size affects the diffusion from element0 to element1.…
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chemistry did not converge at node
Hi，tough community users, I try to carry out the 1D fluid-rock modeling for meteoric water dissolution during 10e4 years. In the runlog file, I occasionally found this error,…
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Error message: Components missing:h2o
Hello All! I am trying to run a batch equilibrium simulation with several mineral phases including goethite and others having h2o in the reactions equation.…
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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.…
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how to set initial temperature distribution
Hi，tough community users, I want to prepare the initial or stable pressure and temperature conditions for EGS. INDOM was introduced into my flow file. The UPPE1 reservoir is the top mesh having 1.…
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About the fluid velocity in the governing equation
Hi, everyone, I'm currently studying the governing equations underlying TOUGHREACT, particularly in the context of the ECO2N module. The entire solution process is as follows： （1）For the fluid flow…
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During CO2 sequestration at basalt formation, time step size rapidly decrease
hello, everyone. I am graduated student, during master degree. I'm constructing simulation model about basalt CO2 mineralization. I am utilizing TOUGHREACT 1.2.…
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how to use RESTART to inherit the minerals fractions and change P T?
Hi, My model is 1D with 10*10*400 meter. Firstly, I renamed the save and savechemical to INCON and inchemical in the first simulation, and copied these two files to the second simulation folder.…
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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.…
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What is the popular way to visualize 3D results from TOUGHREACT
Hi, I have unstructured grid created by GMSH, what is the popular way to visualize 3D results from TOUGHREACT I tried TOUGHIO, but it won't read my flow.out properly
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Simple model test with ECO2N
I was testing the ECO2N module compiled by myself (Linux version). I built a simple model with 2 grids. I set pressure difference of 2MPa and gas saturation difference of 0.…
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Hysteresis and non-wetting phase entrapment saturation
Hello everyone, First of all, thank you all for your help. I have a question related to gas permeability. In a wetting process where \( k_g(1 - S_{\delta_{gr}}) = k_g(S_{l^*}) = 0 \),…
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Importing of pore-pressure obtained from T+H simulation to FLAC-3D
Hi all, Can someone help me with the python script for importing pore-pressure obtained from T+H simulation to FLAC-3D? Thank you in advance.
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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,…
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total concentration of sulfate increasing over time
Hello, I ran a chemical initialization simulation for 10 million years to achieve steady state. In order to figure out how much dissolution and precipitation I have in my system,…
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Specify the time-dependent pressure boundary condition in TOUGH+HYDRATE
Hi, everyone Can I set a time-dependent pressure boundary condition in the TOUGH+HYDRATE? I wonder if it is possible to decrease the pressure of the production well over time. Thanks!
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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.…
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low injection rate cannot work in 2D model
Hi, everyone. I am so sorry to interrupt you again for a same question. I want to simulate the dissolution and precipitation of sandstone in 2D model, which were induced by meteoric water injection.…
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GMS complex mesh to tough2 error in result
dear all, i have a complex structural model created with gms, and when i use gms export mesh to tough2 option, the resulted mesh does not contain the angle of gravity and cell connections,…
