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ECO2N permeability modification
Hi all, I have a question about random permeability modification using ECO2N. When I include a SEED dummy domain in ROCKS and use input parameters for logarithmic permeability modification,…
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TOUGH2 code compiled with IVF(based on VS circumstance)
Hello,everyone! I have some question about compile TOUGH2 code. I have two fortran compiler,but I can only compile TOUGH2 code follow the suggest giving in https://tough.forumbee.…
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The relationship between S_l and P_cap is not consistent with the van Genuchten function
Hi, I am using ECO2N for simulating CO2 storage. I wanted to verify that the relationship between the liquid saturation, S_l, and the capillary pressure, P_cap,…
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For a same drainage process, why ECO2N with hysteresis modeling and ECO2N without hysteresis modeling have very different results?
I studied the reservoir response to different injection processes. To just test the simulators' capability, I used TOUGH2-ECO2N with the hysteretic capillary pressure and relative permeability…
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Any idea for constant thermophysical properties for fluid (water) and P/T decoupling in governing level?
Hello. I'm trying to modify TOUGH2 codes for constant thermophysical properties for fluid (eos1) and P/T decoupling in governing equation level. In order to do this, I've fixed density, viscosity,…
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Deliverability model to simulate landfill gas collection systems
Hello I want to model the suction in landfill gas collection systems using Deliverability model. In landfills, we set a suction pressure and it collects the gas.…
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CO2 storage simulation with heterogeneous perm field fails to converge
Hi all, I have a problem with building a geological CO2 storage model using the TOUGH2/ECO2N module. In this model, I considered a heterogeneous permeability field by using the PM-coefficients…
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bottom flowing pressure well on delivery
Dear All, I would like to get an estimate of the bottom flowing pressure in a well that is cross cutting several layers and sometimes several cells in the same layer (when the well is deviated for…
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Boundary conditions
Hi, I am modeling the injection of fluid into a porous domain through a fault. I have a created multiple zones for the domain(sand, shale and fault) and put an injection well at bottom end of the…
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Pytough: Grid type TOUGH not supported.
Hi all, This is the first i am using pytough script. I am trying to see the summary of model geometry by using mulgrid in pytough. The Tough2 input file (as you can see in attachment) was generated…
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Theis solution
Dear All, Does anyone have a test file of the Theis problem (such as the one presented in Moridis and Pruess 1995)? Thank you in advance! Virginie
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MINC for general dual porosity modeling
Hello, is it possible/advisable to use MINC for more general analysis of multiple interacting continua, i.e., without fractures? I'd like to model flow through two porous media with different…
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Run a diffusion problem to equilibrium
Hi, I am working on a diffusion problem with a small gradient. The anticipated equilibrium time is ~30000 years. The best simulation time I can get for now is ~1000 years.…
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Restart option with PetraSim
Hello everybody, There is a procedure for the restart of a though2 run. I interrupted a run of Tough2, I can restart it where it left off? Thanks
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Mass input in .out file
Hi everybody! Could anyone tell me if is it possible to see the CO2 mass input in petrasim output file? I've tried to check it on Volume and Mass-Balances, but it isn't there.…
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Help me? (EOS3) simulate a two-phase test.
Hi,everyone Right now, i want to simulate water drainage experiment, as first conducted by Liakopoulos(Liakopoulos, A.C., 1965. Transient Flow Through Unsaturated Porous Media.Ph.D. Dissertation.…
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CO2 injection into a CO2 saturated reservoir
Hi everyone, I'm running a test to check the results regarding to inject CO2 into a reservoir with a CO2 mass fraction=1. SG attached starts at 0 and the value raises with time.…
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Numerical instability with water vapor condensation in ECO2M
Hey everyone, I've run into an issue trying to make the transition from a saturated gas to a 2-phase stream composed of a wetting aqueous phase and a gaseous CO2/H2O(g) mixture.…
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water table
Hello everyone ! I have some brief questions which I need to find an answer too. I emailed the developers but didn't receive a response in the last week. My questions are as follows: Q1.…
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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,…