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Is there a limit of injection rate that an element can accept?
Hi, I am running a 2-D planar, unidirectional flow with injection and production at both ends (actually, simulating an aquifer). But I found if I increase the injection rate more than a certain…
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Cells with time-dependent concentration?
Hi, I found that time-dependant boundary conditions in flow are possible in TOUGH2 by using FOFT and GOFT blocks, but is it also possible to have a time-dependent concentration at certain element?…
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water, vapor and heat coupled modeling in 2D/3D
Hello all, Is TOUGH3 able to couple water, vapor and heat transfer in a 2 or 3 dimensional unsaturated zone model? I mean to do 2D/3D vapor transport modeling in semi-arid region with a atmosphere…
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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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Initializing simulation with sorbed species
First, this is my first foray into building up my own TOUGHREACT simulations, so I apologize if this is a question I should have figured out by reading the manual more closely.…
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Error compiling the utility kswitch_v2.3.f
I'm attempting to compile the kswitch_v2.3.f source code that came with TOUGHREACT v3.32. I'm using the gfortran compiler, and if this is relevant, I'm running this on Ubuntu v 17.10 as my OS.…
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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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EOS1 with 2nd water. Some issues ...
Hello everybody, I'm quite new to Tough2, and trying to build my 1st case. So far I managed to run a very simple case with 2 wells (1 producer / 1 injector) in a water filled reservoir.…
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Enthalpy Discrepancy
Hello There, I was just wondering what the reference state for the enthalpy of water in TOUGH2 is? The reason is I would like to define water infiltration (precipitation) with a temperature of 20˚C.…
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Time stepping with 'infinite volume' boundaries
Hello, I was wondering if you all could help me understand the time stepping of a soil model I’m building. I would like to model annual soil carbonate formation and dissolution dynamics in a soil.…
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Non-Darcy flow of oil above bubble point
In blowout simulations of proposed (not yet drilled) oil wells in the Gulf of Mexico (Worst Case Discharge, aka WCD) a simple radial reservoir simulation model is assumed and flowing pressure bottom…
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iTough2 parallelization by PVM
Hello, I appreciate a response on some aspects of PVM parallelization, in case you have some experiences with it. Is it possible to do the parallelization on a single machine with extended number of…
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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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Non-convergence when considering permeability heterogeneity
Hello again, the non-convergence problem is still unresolved when considering permeability heterogeneity in my TOUGH2/ECO2N CO2 storage model. In this model I used the default/common parameter…
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Non convergence when considering non-isothermal or molecular diffusion in TOUGH2 ECO2N
I am using TOUGHREACT V3.32 to model CO2 injection in a radial 2D mesh with different layers in the z-direction. Before running the reaction part of the problem I wanted to test the flow part was…
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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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Setting permeability anisotropy with Voronoi elements
I'm trying to define proper permeability values for each connection in my Voronoi mesh file. Essentially, my PER(1) and PER(2) values are constant and equal to one another,…
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salt, chemistry and permeability reduction in ECO2N
I am trying to simulate salt precipitation and corresponding permeability reduction upon CO2 injection using the ECO2N EOS in TOUGHREACT. Initially without chemistry.…
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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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How we can define a reaction with two minerals (such as reaction 1) in Toughreact’s thermodynamic database?
I am trying to simulate the precipitation of uraninite using reactive mass transport modeling. In my reactive transport model, Uraninite precipitates through the following reaction:…
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How to get intermediate message during run-time?
Hi Everyone, I am a new T2-MP user and I would like to know how to obtain messages about the simulation during the run (intermediate message). Thank you very much for your help !
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Convergence becomes difficult after CO2 breakthrough (ECO2N)
Hi, I want to know why the convergence becomes difficult (so the time step becomes very small, or simulation terminates) near or after phase breakthrough.…
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"ERRONEOUS DATA INITIALIZATION" on IBM-AIX cluster
I encountered a problem with "ERRONEOUS DATA INITIALIZATION" , when I tried to run serval tests using TOUGH2-MP on IBM-AIX cluster. These tests had been successfully tested using the usual Tough2.…
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An encoding issue when TOUGH2-MP reads INFILE?
Hi, When I tried to run an example problem using TOUGH2-MP on an IBM-AIX supercomputer, I encountered an initialization problem that the executor terminated perhaps due to errors of reading the…
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Problem in Defining the Water Table
Hi everyone, I would like to know how to define the water table if I want it to be sloped or fluctuating? I really dont have any idea where this problem is coming from. Any help is appreciated.…