-
immature termination
Hi all, I'm trying to model an experiment where I had a cylinder filled with sand and some headspace on the top. The sand had some solvent in it. The whole cylinder was initially at about 100 degC…
-
T2Well constant fluid properties and EOS1 relationship?
Hi, I am currently modelling a wellbore with constant density, thermal conductivity and specific heat capacity thermophysical properties at surface temperature 40 degrees like so: Wella 2 1665.e00 1.…
-
Salt precipitation dependency on rate (and grid size)
Hello folks; This is about testing salt precipitation in a 1D radial model with a single injection well at its center using ECO2N where capillary forces included and a pressure release well put on…
-
Constant gas production rate
We are using EWASG modulus to simulate a reservoir with water, salt, and NCG. For the production well, there are water and NCG production. We know that we can set total (gas + liquid) production…
-
ECO2M: Extracting Vector Orientation
Hello, I'm using TOUGH2-ECO2M and interested in extracting the "direction/orientation" of the vector output data (flow of heat, flow of fluid, etc), ideally generated in the same CSV format as in…
-
ECO2M: Meaning of VLIQ at Saq=100%
Hello, I am using TOUGH2-ECO2M, and I have a question about the scalar output parameters “Vliq” and “Vgas”. I’m using PetraSim as the post-processor, and the PetraSim windows shows “Pa-s” as the…
-
EOS7 - Brine Definition & Tracing flow of brines
Hello everyone I am looking for more clarity on the definition of brine in EOS7. In the TOUGH2 user's guide V2, it states that, "The brine is modeled as NaCl solution,…
-
Specify the time-dependent BHP
Hi, everyone Can I set the time-dependent pressure in the DELV option? I wonder if it is possible to decrease the bottomhole pressure of the production well over time. Thanks, Young
-
Temperature limits of various ECO2N versions
Hi Folks, Anybody can send me a few words on this: We have a version of ECO2N (as a part of iTough2.7.0.) which doesn't perform with T>103.4, same indication seen in CO2Tab data that is limited to…
-
Mole fraction Output from ECO2N
Hello Trying to get CO2 mass- and mole fraction in aqueous phase and H2O mass- and mole fraction in gaseous phase from a run with iTough2 and ECO2N in a simple radial 1D model where dry CO2 injected…
-
Alternative for running immiscible brine-CO2 system
Hello folks, Sometimes you may need a reference or a benchmark to see the effect caused by implementation of an EOS as a whole. For a Brine-CO2 system, even unphysical,…
-
Error1:Program received signal SIGSEGV: Segmentation fault - invalid memory reference
Hello, I have been working on a model for several months, and now when I run my model, I have the following error: Program received signal SIGSEGV: Segmentation fault - invalid memory reference.…
-
How to account for evaporation Sw initial < Swir
Hi all, I am trying to model infiltration in unsaturated media using EOS9. I believe that in reality my media started with an initial water saturation that is lower than the irreducible water…
-
Print out of permeability reduction
Hi guys, Anybody out there could send me a piece of advise how to get permeability reduction "k-red" printed out when running Tough2 with ECO2N? I tried a couple of things in "OUTPU" and "SELEC",…
-
Not to achineve the end time and no error
Hello everyone, I am trying to run a geothermal reservoir model with EOS1 to predict a production rate for 10 years and the calculation did not achieve the setting end time.…
-
T2Well-ECO2N
Dear T2Well users; Looking for a tool to design CO2 injection aiming at CCS. T2Well-ECO2N software is new to me, I wonder if it is only a 1D simulator?…
-
How to compile T2Well-ECO2N v1.02
Dear all I had downloaded the source code of T2Well-ECO2N (T2Well-ECO2N_Source_v1.02.zip), and I am now trying to compile it by gfortran on a WSL environment.…
-
How to consider the evaporation effect of water affected by temperature in tough2
How to consider the evaporation effect of water affected by temperature in tough2 (or what is the governing equation of water conversion in liquid and vapor)?…
-
Maximum point for time-dependent injection
Dear all, I am trying to prescribe more points for cyclic injection scenario. I checked the TOUGH2 manual, which indicated to use LTAB for the number of points in the table of rate vs time.…
-
Mobility concept in TOUGH (Parameter MOP(11) )
Hi dear group, I hope this wouldn’t be a silly question I am working with an unsaturated column composed of sandstone and mudstone layers. As first step (and using EOS9),…
-
Software purchase question
Hello everybody! I am a graduate student freshman, and my supervisor asked me to use tough2 software. I didn't know this software before. I only saw itough2 on the website, but not tough2.…
-
TEMPERATURE = 0.000000E+00 OUT OF RANGE IN SAT
Hi All, I am a newbie to the TOUGH simulator and trying to create a small model for brine injection using EOS7 module. While I am trying to run the model,…
-
Radial mesh
Hi all, I am using radial mesh to model a column, which is defined by R and Z. Is it possible to model only 1/4 of the column with a theta (θ)? I don't see where to set this. Regards, Antonio
-
Why does the partial pressure of carbon dioxide change so much when SG is greater than zero?
I use eos2 to simulate phase transition (phase change) it is a very simple model to study the Pco2 change. but it is a little bit hard to explain. I found SG>0,…
-
Liquid saturation definition
Recently, I showed my simulation results to my colleagues. I was asked a question, what is the liquid saturation and gas saturation. I have tried to explain, but I was confused finally.…