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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.…
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Concepts of cation exchange, surface complex, inner-sphere and outer-sphere complex
Hello, everyone, I am confused by the concepts of cation exchange, surface complex, inner-sphere and outer-sphere complex now. I found the sorption mechanisms are inner-sphere and outer-sphere…
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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…
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Problem with runlog.out file size
Hello: I'm working with toughreact 2.29 in a cluster, and i have noticed that the "runlog.out" file is the output file of higher size (even higher that "flow.out"). To the point that is an issue.…
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Error loading simulation results with Petrasim 5
I was trying to load my simulation results, but I couldn't ...Do experienced users have any suggestions if with multiple simulation results I go through part of the loading results process and end…
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Helium diffusion into CO2 plume
Hi, I am running toughreact V3 example problem 5 with diffusion switched on and helium added to the fluid and CO2 phase. During and after CO2 injection i expect the helium to diffuse into the CO2…
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Parameter estimates from multiple simulations?
Is it possible, through TOUGH2 or iTOUGH2, to perform parameter estimations based on multiple simulations that are coupled to one another? I know that for a forward simulation you can establish…
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Inactive elements
Can iTOUGH2 attempt to estimate a generation rate from an inactive element? This element would define either a Dirichlet or a time-dependent boundary. I'll also have observations on the flow rate…
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ELEME6 Block?
Hey everyone, I used MESHMaker to create an axisymmetric mesh (RZ2D), and it created an ELEME block with 6-digit character codes (titled ELEME6). Is this due to the number of elements I requested?…
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toughreact groundwater flow direaction
hi,!! l use the toughreact v1.2 but l don't know how to set the direction of groundwater flow?? the following is my model condisions - toughreact v 1.2 eco2n - 60*60*40(cube type) - one injection…
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Geochemical Equilibrium between 2 water compositions
Hello: I understand how to obtain the speciation of one water composition in one grid block for a given thermodynamic conditions. But I want to know if it's possible to obtain the geochemical…
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Building regions in PyTough
How can I build regions using pytough? I thought regions may be created by assigning rock properties to block centers, but it seems like that's not the way to build regions.…
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Running 2 NGCs
Hi Everyone, I'm new at using TMVOC. I'm trying to run 2 NCGs (Air and CO2). It's a simple model. Just a model of atmosphere (gas only - with NCGs air and CO2) and soil (water only).…
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Reactive surface area on surface complex
Hi, everyone, I am confused by the concepts of S_AREA (surface area for sorption) and AMIN (initial mineral reactive surface area) If I choose IFLAG=0 and IMFLG=0.…
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MOMOP
Hi I am looking at some input files of iTOUGH code. I have found one new block entitled "MOMOP". What is it? Thank you
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CO2 mass balance
Hi all, I am experiencing a problem with CO2 mass balance in TOUGH2/ECO2N output. I am not able to figure out the reason behind missing CO2. After a year,…
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MOPR(1) = 4 (constant velocity)
Hi, I know most of simulation uses the first option of MOPR(1) as 0: reactive transport or 2: only flow with no chemical reaction but when do we use 4:…
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Simulate the cation exchange and surface complex between heavy metal and clay
Hello, everyone. I am trying to simulate the cation exchange and surface complex in clay. However, my simulation results are very strange. Could someone please help me figure out how to how to…
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Problem with building heterogeneous CO2 storage model
Hi all, I need to build a CO2 storage model with heterogeneous permeability field using TOUGH2/ECO2N. I built a homogeneous model first and it could be ran successfully.…
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Problem initializing a low permeability EOS7C simulation
Hello, I am trying to set up a model with EOS7C, with which I plan to simulate methane generation within a large, low permeability domain over a long period of time.…
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Cation exchange and surface complex input files
Hello everyone, I'm simulating the cation exchange and surface complex between Eu+3 and clay, and I found only the 8.2 problem 2 and 8.10 problem 10 in TOUGHREACT v2.…
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How to choose the module to simulate the Terzaghi's one-dimensional consolidation?
Hi everybody, as stated in the title，i want to simulate Terzaghi's one-dimensional consolidation, but i'm not sure which module of TOUGH2 i should choose, can any body tell me? thanks very much.…
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Gas density in EOS2 is unrealistic(5000kg/m3)
Hello all: I set up a model to simulate CO2 displace water in core by EOS2 module. The inlet is CO2 mass inlet boundary condition, and the outlet is constant pressure boundary condition(10MPa).…
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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…
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WinGridder
Hi, dear all I 'd like to purchase WinGridder for making complex models. Please tell me Which OS is fit to use WinGridder ? (Can it be run on PCs with windows7?) Best Regards, Yamamoto