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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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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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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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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,…
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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…
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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.
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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
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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,…
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Coupling between flow and processes
Hi there, I am wondering how the fluid flow and heat transport are coupled in Tough2. Are fluid and heat flow equations solved iteratively ? I would be thankful if could help me in this regard.…
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what is the meaning of the running time is negative?
Hello everyone, can anybody tell me why the running time is negative? As shown in the figure? Thanks very much! sawyer
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TOUGH 2 ECO2M temperature condition
Hi, It is described in the ECO2M user guide that TOUGH2 simulates CO2 migration under temperature condition up to 110 °C. I am wondering if the temperature condition is about 115 °C-125 °C,…
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production mass volume calculation
Hi there, For a constant boundary pressure, and constant production rate gas reservoir, is there a way to tell how much gas and how much water produced from outputs? Thanks Jing
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Problem with RF1 input file
Hello everyone, I'm starting to use TOUGH2 for the first time. I tried to run the sample-input file RF1, but the output file gives me an error and I don't know how to proceed.…
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Steam Liquid coexistence
Hi, I’m a new Petrasim user and I would like to make some questions: I tried to build some geothermal model s and I have watched some tutorials and I’ve read some publications.…
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MINC and low permeability case problem in Tough2
Hi All, I set up a case using the MINC with 2 continua. The first continua represents the fracture and the second one represents the matrix. For this case,…
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A problem with my simulation with EOS9nT
I have some problems in my modelling project with EOS9nT. In my example I want to simulate the nuclide release and transport process in a disposal site with a 3-D model.…
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run time error M6201:math
Hi! Can anybody help we with this error. (error message is in the attached picture) I changed my 1D model from horizontal to vertical and this error comes out during running the new input file.
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Diffusion coeficient
hallo could any one tell me frome where can i get the diffusion coefficients for gas and water phases to be used inside the tough2 input file thanks in advance rima
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One question on outputting flow rate of aqueous VOC through COFT
Hello everyone, I have a question on outputting flow rate of aqueous VOC through COFT. I established a control plane in my model and want to simulate mass discharge through the control plane.…
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Role of the entry capillary pressure (Pce)-- Modification the model Van Genuchten.
Dear all, I'm a new member. I started to simulate the migration of hydrogen using the EOS 5 -TOUGH 2. Like the topic title, I would like to find out about the role of the entry capillary pressure.…
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EOS7C poor convergence, e.g., in subroutine SOLIT
EOS7C v.1 models five components (water, brine, CO2 or N2, tracer, and CH4) and heat. Many users have noticed that time-step convergence can become poor during CO2 injection problems,…