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Re: Can TOUGH3 model temperature below zero degree? As reminded by Christine, TOUGH2/3 cannot handle T below the triple point of water, as 0.01°C is the lower limit for the old IFC67 and the new IAPWS-IF97 correlations for the properties of water and…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 2 days ago
- TOUGH3
- Reported - view
Re: TMVOC initial conditions Convergence Failure Dear Mostafa, you have specified 3-phase conditions for the CLAY zone with SO=0.1, which is a bit strange if you want to simulate first a steady-state before the NAPL spill.…
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- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 2 days ago
- TMVOC
- Reported - view
Re: TMVOC initial conditions Convergence Failure Dear Mostafa, It is a bit hard to comment about the convergence problem you mention without running the model. Could you share the Petrasim file? If you can, my email is alf_batt@yahoo.com .…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 6 days ago
- 1
- TMVOC
- Reported - view
Re: how to cancel or minimize VOC volatilization Dear Ziming, if you want to reduce the evaporation of VOCs from the NAPL phase, you may consider to reduce their vapor pressure which is computed either by the Wagner or Antoine eqs (eqs. 4.3.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 2 mths ago
- TMVOC
- Reported - view
Re: Pore Compressibility in ECO2M For 'initial pressure' I do mean the P of each element at the beginning of a simulation run. If you need a steady state run and you activate the pore compressibility (>0.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 2 mths ago
- 1
- TOUGH2
- Reported - view
Re: Pore Compressibility in ECO2M Dear Nur, pore compressibility changes the rock porosity as function of pressure change occurring in time since the start of simulation with respect to the initial pressure.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 2 mths ago
- TOUGH2
- Reported - view
Re: T2Well constant fluid properties and EOS1 relationship? Dear Hannah, if I understood properly your question, you would like to have a variable P boundary, with P varying in time according to some constraint specific of your simulated problem.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 4 mths ago
- TOUGH2
- Reported - view
Re: T2Well constant fluid properties and EOS1 relationship? Dear Hanna, fluid properties will be computed according to local conditions by the EOS (EOS1 in your case) in all grid elements, either belonging to reservoir or wellbore.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 4 mths ago
- 1
- TOUGH2
- Reported - view
Re: T2Well constant fluid properties and EOS1 relationship? Dear Hanna, the parameters listed under ROCKS block are related to wellbore discretization elements, not to the fluid flowing within the wellbore. Fluid properties are computed according to the…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 5 mths ago
- 2
- TOUGH2
- Reported - view
Re: Code: modify the Biodegradation module in TMVOC Dear Guiyao, biodegradation capabilities were added to TMVOC V.1.0 (Pruess and Battistelli, 2002) in a version called TMVOCBio, which was not distributed at the time.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 5 mths ago
- TMVOC
- Reported - view
Re: bugs or misunderstanding? Dear Jian, about your comments related to T2VOC: 1) simply at the time the density of aqueous phase was not added to the printout. Of course it is not a bug: adding Daq printout would be very easy.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 6 mths ago
- T2VOC
- Reported - view
Re: Constant gas production rate Dear Ozawa, requiring a constant NCG production rate when a multicomponent mixture is present might not be physical. But going to your question from a purely modeling point of view: 1.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 7 mths ago
- TOUGH2
- Reported - view
Re: EOS7 - Brine Definition & Tracing flow of brines I think you have to consider the intrinsic limitations of EOS7 approach to model a brine of variable salinity. Strong evaporation processes may increase the brine fraction Xb over 1,…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 8 mths ago
- TOUGH2
- Reported - view
Re: EOS7 - Brine Definition & Tracing flow of brines As stated by the TOUGH2 user's guide "EOS7 represents the aqueous phase as a mixture of (pure) water and brine". In practice the aqueous phase is a mixture of a reference brine (with mass fraction…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 8 mths ago
- TOUGH2
- Reported - view
Re: T2Well-ECO2N @Godarzi K Dear Godarzi, T2Well-ECO2M has been coded by Lehua Pan at LBNL, but it is still at a research code level. I think it is for this reason the code is not yet available for commercial…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 8 mths ago
- TOUGH2
- Reported - view
Re: T2Well-ECO2N 1) JT effects: they are implicitely modeled by ECO2M and ECO2N thanks to the dependency of enthalpy on P&T. So, a depressurization of CO2-rich phase will involve a cooling,…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 11 mths ago
- TOUGH2
- Reported - view
Re: injecting VOC mass through virtual cells Dear Alireza, one way to inject the desired amount of VOCs is, as suggested by Christine, to inject in each element using constant rate sources in GENER.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TMVOC
- Reported - view
Re: T2Well-ECO2N Dear Godarzi, if you are interested primarily to simulate fast transients at well start-up or shut-in, then you definetely have to use T2Well. For pure CO2 injection in saline aquifers with T<100°C…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TOUGH2
- Reported - view
Re: T2Well-ECO2N By the way, I do not think TOUGH+RGB can handle 3-phase flow.
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TOUGH2
- Reported - view
Re: T2Well-ECO2N ECO2M has been already coupled to a new, 3-phase flow version of T2well coded by Lehua Pan. It can handle all the phase combinations of H2O-NaCl-CO2 mixtures, including halite precipitation.…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TOUGH2
- Reported - view
Re: T2Well-ECO2N Dear Godarzi, T2Well-ECO2N allows simulating the coupled wellbore-reservoir flow. Of course, while 1D flow is modeled along the wellbore, the reservoir can be discretised as usually made for…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TOUGH2
- Reported - view
Re: Temperature limit Dear Antonio, TMVOC in TOUGH2 uses the IFC-67 correlations for pure water properties. I guess TMVOC in TOUGH3 uses IAPWS-IF97. In both cases, Region 1 correlations (liquid water) have an upper limit…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TMVOC
- Reported - view
Re: Grid orientation effects on mineral dissolution Ozawa, it seems you are running TOUGHREACT under Petrasim. Have you tried to use a Voronoi grid ("Polygonal" in Petrasim) instead of a cartesian one? You can also try to force Petrasim to build a…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TOUGHREACT
- Reported - view
Re: methane leak and plume migration in subsurface from hydrocarbon wellbores Alireza, TMVOC V.1.0 (Pruess and Battistelli, 2002) can model a mixture of water and CH4, but CH4 has to be included as an NCG, not a VOC because its critical temperature is lower than subsurface T…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TOUGH2
- Reported - view
Re: methane leak and plume migration in subsurface from hydrocarbon wellbores Hi Alireza. The user's guide of EOS7C V.1.0 does not mention the possibility to simulate gas adsorption. Other TOUGH2 modules or codes simulating gas adsorption are: - EOS7C-ECBM : Webb S.W. (2011).…
- Alfredo Battistelli
- Reservoir Engineer
- Alfredo_b
- 1 yr ago
- TOUGH2
- Reported - view

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Alfredo Battistelli

Alfredo_b

Reservoir Engineer

Italy

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