Coupled LIQUID_FLOW and HEAT_TRANSPORT

Hello everyone,

I am currently using OGS 5.7 on Linux.

I am trying simulate injection and production from a geothermal reservoir. Based on what i have seen and understand from few of the benchmarks I created a .num file as attached.

However, it does not seem like the coupling has been implemented. I attempted to simulate injection water at a constant temperature lower than the ambient temperature in the reservoir but there was no apparent effect . I have a couple questions to help me understand exactly how this problem should be implemented.

  1. I would like to inject water at a constant temperate, I implemented this as a temperature boundary condition on the same injection pt. So at the same point, I have set a CONSTANT_NEUMANN for liquid flow and CONSTANT value for temperature. Does OGS couple this temperature condition with the water also being injected at that point or should I set a constant temperature at this point as a source term as well?

  2. Have I included the correct functions in my .num file to successfully implement a coupled liquid flow and heat transport problem.

Thanks in advance for any feedback!

Cheers,
Ariel

res10_1.num (899 Bytes)

Ariel-You may use MCF as the PCS.

···

On Mon, May 16, 2016 at 2:24 PM, Ariel Thomas ariel.t.thomas@gmail.com wrote:

Hello everyone,

I am currently using OGS 5.7 on Linux.

I am trying simulate injection and production from a geothermal reservoir. Based on what i have seen and understand from few of the benchmarks I created a .num file as attached.

However, it does not seem like the coupling has been implemented. I attempted to simulate injection water at a constant temperature lower than the ambient temperature in the reservoir but there was no apparent effect . I have a couple questions to help me understand exactly how this problem should be implemented.

  1. I would like to inject water at a constant temperate, I implemented this as a temperature boundary condition on the same injection pt. So at the same point, I have set a CONSTANT_NEUMANN for liquid flow and CONSTANT value for temperature. Does OGS couple this temperature condition with the water also being injected at that point or should I set a constant temperature at this point as a source term as well?

  2. Have I included the correct functions in my .num file to successfully implement a coupled liquid flow and heat transport problem.

Thanks in advance for any feedback!

Cheers,
Ariel

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Hi Ariel,

1. I would like to inject water at a constant temperate, I implemented
this as a temperature boundary condition on the same injection pt. So at
the same point, I have set a CONSTANT_NEUMANN for liquid flow and
CONSTANT value for temperature. Does OGS couple this temperature
condition with the water also being injected at that point or should I
set a constant temperature at this point as a source term as well?

No, you shouldn't do it. Your setting (the injection flow rate as a source term for liquid flow, the injection temperature as Dirichlet BC for heat transport) is fine.

2. Have I included the correct functions in my .num file to successfully
implement a coupled liquid flow and heat transport problem.

$OVERALL_COUPLING should be given before #NUMERICS as below. and $COUPLED_PROCESS is not needed in this case. The keyword is useful when you have more than two processes and want to make two of them coupled.

$OVERALL_COUPLING
;min_iter -- max_iter
1 3
#NUMERICS
$PCS_TYPE
LIQUID_FLOW
...
#NUMERICS
$PCS_TYPE
HEAT_TRANSPORT
...
#STOP

Though I'm not sure which tutorials you have already read, in general I recommend the followings to get an introduction about geothermal modeling with OGS:

https://docs.opengeosys.org/books/geoenergy-modeling-i

Best,
Nori

···

--
Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics (ENVINF)
Wissenschaftler

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany

norihiro.watanabe@ufz.de / http://www.ufz.de
Telefon +49 341 235 1806

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: Dr. Heike Graßmann

OK good to know that I am on the right track with the injected water temperature.

I actually came accross the first tutorial already but the second one is new to me and from a first look it seems like it would be a great help.

Thank you very much for the recommendation!!

Cheers,
Ariel

···

On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro Watanabe wrote:

Hi Ariel,

  1. I would like to inject water at a constant temperate, I implemented
    this as a temperature boundary condition on the same injection pt. So at
    the same point, I have set a CONSTANT_NEUMANN for liquid flow and
    CONSTANT value for temperature. Does OGS couple this temperature
    condition with the water also being injected at that point or should I
    set a constant temperature at this point as a source term as well?

No, you shouldn’t do it. Your setting (the injection flow rate as a
source term for liquid flow, the injection temperature as Dirichlet BC
for heat transport) is fine.

  1. Have I included the correct functions in my .num file to successfully
    implement a coupled liquid flow and heat transport problem.

$OVERALL_COUPLING should be given before #NUMERICS as below. and
$COUPLED_PROCESS is not needed in this case. The keyword is useful when
you have more than two processes and want to make two of them coupled.

$OVERALL_COUPLING
;min_iter – max_iter
1 3
#NUMERICS
$PCS_TYPE
LIQUID_FLOW

#NUMERICS
$PCS_TYPE
HEAT_TRANSPORT

#STOP

Though I’m not sure which tutorials you have already read, in general I
recommend the followings to get an introduction about geothermal
modeling with OGS:

https://docs.opengeosys.org/books/geoenergy-modeling-i

https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf

Best,
Nori


Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics (ENVINF)
Wissenschaftler

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany

norihiro...@ufz.de / http://www.ufz.de

Telefon +49 341 235 1806

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: Dr. Heike Graßmann

Hi Nori,

I was able to make good progress with the geothermal doublet simulation so far, thanks for your input, I appreciate it.

I have run a few simulations in a reservoir with one fracture connecting two injection points, the coupled fluid flow and heat transport problem seems to working now, however, the resulting temperature profile seems very unrealistic.

I am simulating using an injection/production rate of 75m3/h over a period of 30 years. I inject water at 50 deg C and the resultant cold water front tells me that the coupled process is working. However, my production temperature should drop by a few degrees after producing for 30 years but this is not the case, the production temperature stays more or less constant.

I have tried adjusting the .num file but with no reasonably different outcome. I also ran some simulations where I increased the permeability (2X, 5X, 10X…) of the fracture and I saw a bit of a production temperature decrease in those cases but even for 100X my base permeability the temperature decrease was just about 1 deg. I attached a plot showing a few of the temperature profiles for the Base Permeability case as well as some of the variations. In one case the temperature even increased but here I did not use the mass lumping method and Streamline-Upwind/Petrov-Galerkin (SUPG) method.

I suspect maybe I am not including the correct combination of parameters in my .mmp file to properly simulate heat transfer between the fluid and the matrix or something like that. I would greatly appreciate any advice that you may be able to give with regards to this problem. I have tried switching around a lot of parameters but I can’t seem to get a very realistic output.

I have also attached my input files if that helps.

Thanks,

Ariel

···

On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro Watanabe wrote:

Hi Ariel,

  1. I would like to inject water at a constant temperate, I implemented
    this as a temperature boundary condition on the same injection pt. So at
    the same point, I have set a CONSTANT_NEUMANN for liquid flow and
    CONSTANT value for temperature. Does OGS couple this temperature
    condition with the water also being injected at that point or should I
    set a constant temperature at this point as a source term as well?

No, you shouldn’t do it. Your setting (the injection flow rate as a
source term for liquid flow, the injection temperature as Dirichlet BC
for heat transport) is fine.

  1. Have I included the correct functions in my .num file to successfully
    implement a coupled liquid flow and heat transport problem.

$OVERALL_COUPLING should be given before #NUMERICS as below. and
$COUPLED_PROCESS is not needed in this case. The keyword is useful when
you have more than two processes and want to make two of them coupled.

$OVERALL_COUPLING
;min_iter – max_iter
1 3
#NUMERICS
$PCS_TYPE
LIQUID_FLOW

#NUMERICS
$PCS_TYPE
HEAT_TRANSPORT

#STOP

Though I’m not sure which tutorials you have already read, in general I
recommend the followings to get an introduction about geothermal
modeling with OGS:

https://docs.opengeosys.org/books/geoenergy-modeling-i

https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf

Best,
Nori


Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics (ENVINF)
Wissenschaftler

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany

norihiro...@ufz.de / http://www.ufz.de

Telefon +49 341 235 1806

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: Dr. Heike Graßmann

Ariel, can you send me the input files?

nori

···

On 01/06/16 21:18, Ariel Thomas wrote:

Hi Nori,

I was able to make good progress with the geothermal doublet simulation
so far, thanks for your input, I appreciate it.

I have run a few simulations in a reservoir with one fracture connecting
two injection points, the coupled fluid flow and heat transport problem
seems to working now, however, the resulting temperature profile seems
very unrealistic.

I am simulating using an injection/production rate of 75m3/h over a
period of 30 years. I inject water at 50 deg C and the resultant cold
water front tells me that the coupled process is working. However, my
production temperature should drop by a few degrees after producing for
30 years but this is not the case, the production temperature stays more
or less constant.

I have tried adjusting the .num file but with no reasonably different
outcome. I also ran some simulations where I increased the permeability
(2X, 5X, 10X..) of the fracture and I saw a bit of a production
temperature decrease in those cases but even for 100X my base
permeability the temperature decrease was just about 1 deg. I attached a
plot showing a few of the temperature profiles for the Base Permeability
case as well as some of the variations. In one case the temperature even
increased but here I did not use the mass lumping method and
Streamline-Upwind/Petrov-Galerkin (SUPG) method.

I suspect maybe I am not including the correct combination of parameters
in my .mmp file to properly simulate heat transfer between the fluid and
the matrix or something like that. I would greatly appreciate any advice
that you may be able to give with regards to this problem. I have tried
switching around a lot of parameters but I can't seem to get a very
realistic output.

I have also attached my input files if that helps.

Thanks,
Ariel

On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro Watanabe wrote:

    Hi Ariel,

    > 1. I would like to inject water at a constant temperate, I
    implemented
    > this as a temperature boundary condition on the same injection pt.
    So at
    > the same point, I have set a CONSTANT_NEUMANN for liquid flow and
    > CONSTANT value for temperature. Does OGS couple this temperature
    > condition with the water also being injected at that point or
    should I
    > set a constant temperature at this point as a source term as well?

    No, you shouldn't do it. Your setting (the injection flow rate as a
    source term for liquid flow, the injection temperature as Dirichlet BC
    for heat transport) is fine.

    > 2. Have I included the correct functions in my .num file to
    successfully
    > implement a coupled liquid flow and heat transport problem.

    $OVERALL_COUPLING should be given before #NUMERICS as below. and
    $COUPLED_PROCESS is not needed in this case. The keyword is useful when
    you have more than two processes and want to make two of them coupled.

    $OVERALL_COUPLING
    ;min_iter -- max_iter
    1 3
    #NUMERICS
    $PCS_TYPE
    LIQUID_FLOW
    ...
    #NUMERICS
    $PCS_TYPE
    HEAT_TRANSPORT
    ...
    #STOP

    Though I'm not sure which tutorials you have already read, in general I
    recommend the followings to get an introduction about geothermal
    modeling with OGS:

    https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>
    https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>

    Best,
    Nori

    --
    Norihiro Watanabe, Dr.-Ing.
    Department of Environmental Informatics (ENVINF)
    Wissenschaftler

    Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    Helmholtz Centre for Environmental Research GmbH - UFZ
    Permoserstraße 15 / 04318 Leipzig / Germany

    norihiro...@ufz.de <javascript:> / http://www.ufz.de
    Telefon +49 341 235 1806

    Sitz der Gesellschaft: Leipzig
    Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
    Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    Administrativer Geschäftsführer: Dr. Heike Graßmann

--
You received this message because you are subscribed to the Google
Groups "ogs-users" group.
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an email to ogs-users+unsubscribe@googlegroups.com
<mailto:ogs-users+unsubscribe@googlegroups.com>.
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--
Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro.watanabe@ufz.de / www.ufz.de

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.

I tried to attached a zip file but I kept getting an error and I had to change the extension of the .msp file to .txt

res4.tim (268 Bytes)

res4.bc (0 Bytes)

res4.gli (790 Bytes)

res4.ic (280 Bytes)

res4.mfp (233 Bytes)

res4.mmp (637 Bytes)

res4.num (1.57 KB)

res4.out (288 Bytes)

res4.pcs (187 Bytes)

res4.msh (2.63 MB)

res4msp.txt (338 Bytes)

···

On Wednesday, June 1, 2016 at 9:22:07 PM UTC+2, Norihiro Watanabe wrote:

Ariel, can you send me the input files?

nori

On 01/06/16 21:18, Ariel Thomas wrote:

Hi Nori,

I was able to make good progress with the geothermal doublet simulation
so far, thanks for your input, I appreciate it.

I have run a few simulations in a reservoir with one fracture connecting
two injection points, the coupled fluid flow and heat transport problem
seems to working now, however, the resulting temperature profile seems
very unrealistic.

I am simulating using an injection/production rate of 75m3/h over a
period of 30 years. I inject water at 50 deg C and the resultant cold
water front tells me that the coupled process is working. However, my
production temperature should drop by a few degrees after producing for
30 years but this is not the case, the production temperature stays more
or less constant.

I have tried adjusting the .num file but with no reasonably different
outcome. I also ran some simulations where I increased the permeability
(2X, 5X, 10X…) of the fracture and I saw a bit of a production
temperature decrease in those cases but even for 100X my base
permeability the temperature decrease was just about 1 deg. I attached a
plot showing a few of the temperature profiles for the Base Permeability
case as well as some of the variations. In one case the temperature even
increased but here I did not use the mass lumping method and
Streamline-Upwind/Petrov-Galerkin (SUPG) method.

I suspect maybe I am not including the correct combination of parameters
in my .mmp file to properly simulate heat transfer between the fluid and
the matrix or something like that. I would greatly appreciate any advice
that you may be able to give with regards to this problem. I have tried
switching around a lot of parameters but I can’t seem to get a very
realistic output.

I have also attached my input files if that helps.

Thanks,
Ariel

On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro Watanabe wrote:

Hi Ariel,

> 1. I would like to inject water at a constant temperate, I
implemented
> this as a temperature boundary condition on the same injection pt.
So at
> the same point, I have set a CONSTANT_NEUMANN for liquid flow and
> CONSTANT value for temperature.  Does OGS couple this temperature
> condition with the water also being injected at that point or
should I
> set a constant temperature at this point as a source term as well?

No, you shouldn't do it. Your setting (the injection flow rate as a
source term for liquid flow, the injection temperature as Dirichlet BC
for heat transport) is fine.


> 2. Have I included the correct functions in my .num file to
successfully
> implement a coupled liquid flow and heat transport problem.

$OVERALL_COUPLING should be given before #NUMERICS as below. and
$COUPLED_PROCESS is not needed in this case. The keyword is useful when
you have more than two processes and want to make two of them coupled.

$OVERALL_COUPLING
;min_iter -- max_iter
1 3
#NUMERICS
$PCS_TYPE
LIQUID_FLOW
...
#NUMERICS
$PCS_TYPE
HEAT_TRANSPORT
...
#STOP


Though I'm not sure which tutorials you have already read, in general I
recommend the followings to get an introduction about geothermal
modeling with OGS:

[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)
<[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)>
[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)>



Best,
Nori

--
Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics (ENVINF)
Wissenschaftler

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany

norihiro...@ufz.de <javascript:> / [http://www.ufz.de](http://www.ufz.de)
Telefon +49 341 235 1806

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: Dr. Heike Graßmann


You received this message because you are subscribed to the Google
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Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro...@ufz.de / www.ufz.de

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.

Ariel, can you try with setting zero or 1e-10 to $STORAGE in MMP? 1e-5 is too large. The storage in LIQUID_FLOW is actually the compressibility of media and is normally in a range of 1e-9 - 1e-11, e.g. water compressibility is 4e-10. Setting zero to the storage means you calculate steady flow.

nori

···

On 01/06/16 21:38, Ariel Thomas wrote:

I tried to attached a zip file but I kept getting an error and I had to
change the extension of the .msp file to .txt

On Wednesday, June 1, 2016 at 9:22:07 PM UTC+2, Norihiro Watanabe wrote:

    Ariel, can you send me the input files?

    nori

    On 01/06/16 21:18, Ariel Thomas wrote:
    > Hi Nori,
    >
    > I was able to make good progress with the geothermal doublet
    simulation
    > so far, thanks for your input, I appreciate it.
    >
    > I have run a few simulations in a reservoir with one fracture
    connecting
    > two injection points, the coupled fluid flow and heat transport
    problem
    > seems to working now, however, the resulting temperature profile
    seems
    > very unrealistic.
    >
    > I am simulating using an injection/production rate of 75m3/h over a
    > period of 30 years. I inject water at 50 deg C and the resultant cold
    > water front tells me that the coupled process is working. However, my
    > production temperature should drop by a few degrees after
    producing for
    > 30 years but this is not the case, the production temperature
    stays more
    > or less constant.
    >
    > I have tried adjusting the .num file but with no reasonably different
    > outcome. I also ran some simulations where I increased the
    permeability
    > (2X, 5X, 10X..) of the fracture and I saw a bit of a production
    > temperature decrease in those cases but even for 100X my base
    > permeability the temperature decrease was just about 1 deg. I
    attached a
    > plot showing a few of the temperature profiles for the Base
    Permeability
    > case as well as some of the variations. In one case the
    temperature even
    > increased but here I did not use the mass lumping method and
    > Streamline-Upwind/Petrov-Galerkin (SUPG) method.
    >
    > I suspect maybe I am not including the correct combination of
    parameters
    > in my .mmp file to properly simulate heat transfer between the
    fluid and
    > the matrix or something like that. I would greatly appreciate any
    advice
    > that you may be able to give with regards to this problem. I have
    tried
    > switching around a lot of parameters but I can't seem to get a very
    > realistic output.
    >
    > I have also attached my input files if that helps.
    >
    > Thanks,
    > Ariel
    >
    > On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro Watanabe > wrote:
    >
    > Hi Ariel,
    >
    > > 1. I would like to inject water at a constant temperate, I
    > implemented
    > > this as a temperature boundary condition on the same
    injection pt.
    > So at
    > > the same point, I have set a CONSTANT_NEUMANN for liquid
    flow and
    > > CONSTANT value for temperature. Does OGS couple this
    temperature
    > > condition with the water also being injected at that point or
    > should I
    > > set a constant temperature at this point as a source term as
    well?
    >
    > No, you shouldn't do it. Your setting (the injection flow rate
    as a
    > source term for liquid flow, the injection temperature as
    Dirichlet BC
    > for heat transport) is fine.
    >
    > > 2. Have I included the correct functions in my .num file to
    > successfully
    > > implement a coupled liquid flow and heat transport problem.
    >
    > $OVERALL_COUPLING should be given before #NUMERICS as below. and
    > $COUPLED_PROCESS is not needed in this case. The keyword is
    useful when
    > you have more than two processes and want to make two of them
    coupled.
    >
    > $OVERALL_COUPLING
    > ;min_iter -- max_iter
    > 1 3
    > #NUMERICS
    > $PCS_TYPE
    > LIQUID_FLOW
    > ...
    > #NUMERICS
    > $PCS_TYPE
    > HEAT_TRANSPORT
    > ...
    > #STOP
    >
    > Though I'm not sure which tutorials you have already read, in
    general I
    > recommend the followings to get an introduction about geothermal
    > modeling with OGS:
    >
    > https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>
    > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>>
    >
    https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>

    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>>

    >
    > Best,
    > Nori
    >
    > --
    > Norihiro Watanabe, Dr.-Ing.
    > Department of Environmental Informatics (ENVINF)
    > Wissenschaftler
    >
    > Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    > Helmholtz Centre for Environmental Research GmbH - UFZ
    > Permoserstraße 15 / 04318 Leipzig / Germany
    >
    > norihiro...@ufz.de <javascript:> / http://www.ufz.de
    > Telefon +49 341 235 1806
    >
    > Sitz der Gesellschaft: Leipzig
    > Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
    > Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    > Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    > Administrativer Geschäftsführer: Dr. Heike Graßmann
    >
    > --
    > You received this message because you are subscribed to the Google
    > Groups "ogs-users" group.
    > To unsubscribe from this group and stop receiving emails from it,
    send
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    <https://groups.google.com/d/optout>.

    --
    Norihiro Watanabe, Dr.-Ing.
    Department of Environmental Informatics

    Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    Helmholtz Centre for Environmental Research GmbH - UFZ
    Permoserstraße 15 / 04318 Leipzig / Germany
    Telefon +49 341 235 1806
    norihiro...@ufz.de <javascript:> / www.ufz.de <http://www.ufz.de>

    Sitz der Gesellschaft: Leipzig
    Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
    Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    Administrativer Geschäftsführer: N.N.

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Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro.watanabe@ufz.de / www.ufz.de

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.

Ohhh ok, I will try this.

Thanks again!

Ariel

···

On Wednesday, June 1, 2016 at 10:47:33 PM UTC+2, Norihiro Watanabe wrote:

Ariel, can you try with setting zero or 1e-10 to $STORAGE in MMP? 1e-5 is too large. The storage in LIQUID_FLOW is actually the compressibility of media and is normally in a range of 1e-9 - 1e-11, e.g. water compressibility is 4e-10. Setting zero to the storage means you calculate steady flow.

nori

On 01/06/16 21:38, Ariel Thomas wrote:

I tried to attached a zip file but I kept getting an error and I had to
change the extension of the .msp file to .txt

On Wednesday, June 1, 2016 at 9:22:07 PM UTC+2, Norihiro Watanabe wrote:

Ariel, can you send me the input files?

nori

On 01/06/16 21:18, Ariel Thomas wrote:
> Hi Nori,
>
> I was able to make good progress with the geothermal doublet
simulation
> so far, thanks for your input, I appreciate it.
>
> I have run a few simulations in a reservoir with one fracture
connecting
> two injection points, the coupled fluid flow and heat transport
problem
> seems to working now, however, the resulting temperature profile
seems
> very unrealistic.
>
> I am simulating using an injection/production rate of 75m3/h over a
> period of 30 years. I inject water at 50 deg C and the resultant cold
> water front tells me that the coupled process is working. However, my
> production temperature should drop by a few degrees after
producing for
> 30 years but this is not the case, the production temperature
stays more
> or less constant.
>
> I have tried adjusting the .num file but with no reasonably different
> outcome. I also ran some simulations where I increased the
permeability
> (2X, 5X, 10X..) of the fracture and I saw a bit of a production
> temperature decrease in those cases but even for 100X my base
> permeability the temperature decrease was just about 1 deg. I
attached a
> plot showing a few of the temperature profiles for the Base
Permeability
> case as well as some of the variations. In one case the
temperature even
> increased but here I did not use the mass lumping method and
> Streamline-Upwind/Petrov-Galerkin (SUPG) method.
>
> I suspect maybe I am not including the correct combination of
parameters
> in my .mmp file to properly simulate heat transfer between the
fluid and
> the matrix or something like that. I would greatly appreciate any
advice
> that you may be able to give with regards to this problem. I have
tried
> switching around a lot of parameters but I can't seem to get a very
> realistic output.
>
> I have also attached my input files if that helps.
>
> Thanks,
> Ariel
>
>
> On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro Watanabe > >     wrote:
>
>     Hi Ariel,
>
>     > 1. I would like to inject water at a constant temperate, I
>     implemented
>     > this as a temperature boundary condition on the same
injection pt.
>     So at
>     > the same point, I have set a CONSTANT_NEUMANN for liquid
flow and
>     > CONSTANT value for temperature.  Does OGS couple this
temperature
>     > condition with the water also being injected at that point or
>     should I
>     > set a constant temperature at this point as a source term as
well?
>
>     No, you shouldn't do it. Your setting (the injection flow rate
as a
>     source term for liquid flow, the injection temperature as
Dirichlet BC
>     for heat transport) is fine.
>
>
>     > 2. Have I included the correct functions in my .num file to
>     successfully
>     > implement a coupled liquid flow and heat transport problem.
>
>     $OVERALL_COUPLING should be given before #NUMERICS as below. and
>     $COUPLED_PROCESS is not needed in this case. The keyword is
useful when
>     you have more than two processes and want to make two of them
coupled.
>
>     $OVERALL_COUPLING
>     ;min_iter -- max_iter
>     1 3
>     #NUMERICS
>     $PCS_TYPE
>     LIQUID_FLOW
>     ...
>     #NUMERICS
>     $PCS_TYPE
>     HEAT_TRANSPORT
>     ...
>     #STOP
>
>
>     Though I'm not sure which tutorials you have already read, in
general I
>     recommend the followings to get an introduction about geothermal
>     modeling with OGS:
>
>     [https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)
<[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)>
>     <[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)
<[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)>>
>
[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)>

>
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)>>

>
>
>
>     Best,
>     Nori
>
>     --
>     Norihiro Watanabe, Dr.-Ing.
>     Department of Environmental Informatics (ENVINF)
>     Wissenschaftler
>
>     Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
>     Helmholtz Centre for Environmental Research GmbH - UFZ
>     Permoserstraße 15 / 04318 Leipzig / Germany
>
>     norihiro...@ufz.de <javascript:> / [http://www.ufz.de](http://www.ufz.de)
>     Telefon +49 341 235 1806
>
>     Sitz der Gesellschaft: Leipzig
>     Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
>     Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
>     Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
>     Administrativer Geschäftsführer: Dr. Heike Graßmann
>
> --
> You received this message because you are subscribed to the Google
> Groups "ogs-users" group.
> To unsubscribe from this group and stop receiving emails from it,
send
> an email to ogs-users+...@googlegroups.com <javascript:>
> <mailto:ogs-users+...@googlegroups.com <javascript:>>.
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<[https://groups.google.com/d/optout](https://groups.google.com/d/optout)>.

--
Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics


Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro...@ufz.de <javascript:> / [www.ufz.de](http://www.ufz.de) <[http://www.ufz.de](http://www.ufz.de)>


Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.


You received this message because you are subscribed to the Google
Groups “ogs-users” group.
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mailto:ogs-users+...@googlegroups.com.
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Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro...@ufz.de / www.ufz.de

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.

Some more comments:
- $SPECIFIC_HEAT_CONDUCTIVITY in MFP should be corrected to $HEAT_CONDUCTIVITY.
- Always output element velocity (see below) instead of node velocity because the output of node velocity is wrong if your problem includes fractures.

$NOD_VALUES
  PRESSURE1
  TEMPERATURE1
$ELE_VALUES
  VELOCITY1_X

Best,
nori

···

On 01/06/16 23:40, Ariel Thomas wrote:

Ohhh ok, I will try this.

Thanks again!

Ariel

On Wednesday, June 1, 2016 at 10:47:33 PM UTC+2, Norihiro Watanabe wrote:

    Ariel, can you try with setting zero or 1e-10 to $STORAGE in MMP?
    1e-5 is too large. The storage in LIQUID_FLOW is actually the
    compressibility of media and is normally in a range of 1e-9 - 1e-11,
    e.g. water compressibility is 4e-10. Setting zero to the storage
    means you calculate steady flow.

    nori

    On 01/06/16 21:38, Ariel Thomas wrote:
    > I tried to attached a zip file but I kept getting an error and I
    had to
    > change the extension of the .msp file to .txt
    >
    > On Wednesday, June 1, 2016 at 9:22:07 PM UTC+2, Norihiro Watanabe > wrote:
    >
    > Ariel, can you send me the input files?
    >
    > nori
    >
    > On 01/06/16 21:18, Ariel Thomas wrote:
    > > Hi Nori,
    > >
    > > I was able to make good progress with the geothermal doublet
    > simulation
    > > so far, thanks for your input, I appreciate it.
    > >
    > > I have run a few simulations in a reservoir with one fracture
    > connecting
    > > two injection points, the coupled fluid flow and heat transport
    > problem
    > > seems to working now, however, the resulting temperature
    profile
    > seems
    > > very unrealistic.
    > >
    > > I am simulating using an injection/production rate of 75m3/h
    over a
    > > period of 30 years. I inject water at 50 deg C and the
    resultant cold
    > > water front tells me that the coupled process is working.
    However, my
    > > production temperature should drop by a few degrees after
    > producing for
    > > 30 years but this is not the case, the production temperature
    > stays more
    > > or less constant.
    > >
    > > I have tried adjusting the .num file but with no reasonably
    different
    > > outcome. I also ran some simulations where I increased the
    > permeability
    > > (2X, 5X, 10X..) of the fracture and I saw a bit of a production
    > > temperature decrease in those cases but even for 100X my base
    > > permeability the temperature decrease was just about 1 deg. I
    > attached a
    > > plot showing a few of the temperature profiles for the Base
    > Permeability
    > > case as well as some of the variations. In one case the
    > temperature even
    > > increased but here I did not use the mass lumping method and
    > > Streamline-Upwind/Petrov-Galerkin (SUPG) method.
    > >
    > > I suspect maybe I am not including the correct combination of
    > parameters
    > > in my .mmp file to properly simulate heat transfer between the
    > fluid and
    > > the matrix or something like that. I would greatly
    appreciate any
    > advice
    > > that you may be able to give with regards to this problem. I
    have
    > tried
    > > switching around a lot of parameters but I can't seem to get
    a very
    > > realistic output.
    > >
    > > I have also attached my input files if that helps.
    > >
    > > Thanks,
    > > Ariel
    > >
    > > On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro Watanabe > > wrote:
    > >
    > > Hi Ariel,
    > >
    > > > 1. I would like to inject water at a constant
    temperate, I
    > > implemented
    > > > this as a temperature boundary condition on the same
    > injection pt.
    > > So at
    > > > the same point, I have set a CONSTANT_NEUMANN for liquid
    > flow and
    > > > CONSTANT value for temperature. Does OGS couple this
    > temperature
    > > > condition with the water also being injected at that
    point or
    > > should I
    > > > set a constant temperature at this point as a source
    term as
    > well?
    > >
    > > No, you shouldn't do it. Your setting (the injection
    flow rate
    > as a
    > > source term for liquid flow, the injection temperature as
    > Dirichlet BC
    > > for heat transport) is fine.
    > >
    > > > 2. Have I included the correct functions in my .num
    file to
    > > successfully
    > > > implement a coupled liquid flow and heat transport
    problem.
    > >
    > > $OVERALL_COUPLING should be given before #NUMERICS as
    below. and
    > > $COUPLED_PROCESS is not needed in this case. The keyword is
    > useful when
    > > you have more than two processes and want to make two of
    them
    > coupled.
    > >
    > > $OVERALL_COUPLING
    > > ;min_iter -- max_iter
    > > 1 3
    > > #NUMERICS
    > > $PCS_TYPE
    > > LIQUID_FLOW
    > > ...
    > > #NUMERICS
    > > $PCS_TYPE
    > > HEAT_TRANSPORT
    > > ...
    > > #STOP
    > >
    > > Though I'm not sure which tutorials you have already
    read, in
    > general I
    > > recommend the followings to get an introduction about
    geothermal
    > > modeling with OGS:
    > >
    > > https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>
    > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>>
    > > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>
    > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>>>
    > >
    >
    https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>

    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>>

    >
    > >
    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>

    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>>>

    >
    > >
    > > Best,
    > > Nori
    > >
    > > --
    > > Norihiro Watanabe, Dr.-Ing.
    > > Department of Environmental Informatics (ENVINF)
    > > Wissenschaftler
    > >
    > > Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    > > Helmholtz Centre for Environmental Research GmbH - UFZ
    > > Permoserstraße 15 / 04318 Leipzig / Germany
    > >
    > > norihiro...@ufz.de <javascript:> / http://www.ufz.de
    > > Telefon +49 341 235 1806
    > >
    > > Sitz der Gesellschaft: Leipzig
    > > Registergericht: Amtsgericht Leipzig, Handelsregister
    Nr. B 4703
    > > Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    > > Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    > > Administrativer Geschäftsführer: Dr. Heike Graßmann
    > >
    > > --
    > > You received this message because you are subscribed to the
    Google
    > > Groups "ogs-users" group.
    > > To unsubscribe from this group and stop receiving emails
    from it,
    > send
    > > an email to ogs-users+...@googlegroups.com <javascript:>
    > > <mailto:ogs-users+...@googlegroups.com <javascript:>>.
    > > For more options, visit https://groups.google.com/d/optout
    <https://groups.google.com/d/optout>
    > <https://groups.google.com/d/optout
    <https://groups.google.com/d/optout>>.
    >
    > --
    > Norihiro Watanabe, Dr.-Ing.
    > Department of Environmental Informatics
    >
    > Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    > Helmholtz Centre for Environmental Research GmbH - UFZ
    > Permoserstraße 15 / 04318 Leipzig / Germany
    > Telefon +49 341 235 1806
    > norihiro...@ufz.de <javascript:> / www.ufz.de
    <http://www.ufz.de> <http://www.ufz.de>
    >
    > Sitz der Gesellschaft: Leipzig
    > Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
    > Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    > Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    > Administrativer Geschäftsführer: N.N.
    >
    > --
    > You received this message because you are subscribed to the Google
    > Groups "ogs-users" group.
    > To unsubscribe from this group and stop receiving emails from it,
    send
    > an email to ogs-users+...@googlegroups.com <javascript:>
    > <mailto:ogs-users+...@googlegroups.com <javascript:>>.
    > For more options, visit https://groups.google.com/d/optout
    <https://groups.google.com/d/optout>.

    --
    Norihiro Watanabe, Dr.-Ing.
    Department of Environmental Informatics

    Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    Helmholtz Centre for Environmental Research GmbH - UFZ
    Permoserstraße 15 / 04318 Leipzig / Germany
    Telefon +49 341 235 1806
    norihiro...@ufz.de <javascript:> / www.ufz.de <http://www.ufz.de>

    Sitz der Gesellschaft: Leipzig
    Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
    Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    Administrativer Geschäftsführer: N.N.

--
You received this message because you are subscribed to the Google
Groups "ogs-users" group.
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<mailto:ogs-users+unsubscribe@googlegroups.com>.
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--
Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro.watanabe@ufz.de / www.ufz.de

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.

Hi Nori,

Just seeing your last comment.

I ran the simulations last night with your initial suggestion of settign the $STORAGE to zero and I got some more reasonable results (picture attached) .

The temperature decrease is still very small and it could very well be due to the MFP file as you suggested. I will make some adjustments.

Thanks,

Ariel

···

On Wednesday, June 1, 2016 at 11:49:55 PM UTC+2, Norihiro Watanabe wrote:

Some more comments:

  • $SPECIFIC_HEAT_CONDUCTIVITY in MFP should be corrected to $HEAT_CONDUCTIVITY.
  • Always output element velocity (see below) instead of node velocity because the output of node velocity is wrong if your problem includes fractures.

$NOD_VALUES
PRESSURE1
TEMPERATURE1
$ELE_VALUES
VELOCITY1_X

Best,
nori

On 01/06/16 23:40, Ariel Thomas wrote:

Ohhh ok, I will try this.

Thanks again!

Ariel

On Wednesday, June 1, 2016 at 10:47:33 PM UTC+2, Norihiro Watanabe wrote:

Ariel, can you try with setting zero or 1e-10 to $STORAGE in MMP?
1e-5 is too large. The storage in LIQUID_FLOW is actually the
compressibility of media and is normally in a range of 1e-9 - 1e-11,
e.g. water compressibility is 4e-10. Setting zero to the storage
means you calculate steady flow.

nori


On 01/06/16 21:38, Ariel Thomas wrote:
> I tried to attached a zip file but I kept getting an error and I
had to
> change the extension of the .msp file to .txt
>
> On Wednesday, June 1, 2016 at 9:22:07 PM UTC+2, Norihiro Watanabe > >     wrote:
>
>     Ariel, can you send me the input files?
>
>     nori
>
>     On 01/06/16 21:18, Ariel Thomas wrote:
>     > Hi Nori,
>     >
>     > I was able to make good progress with the geothermal doublet
>     simulation
>     > so far, thanks for your input, I appreciate it.
>     >
>     > I have run a few simulations in a reservoir with one fracture
>     connecting
>     > two injection points, the coupled fluid flow and heat transport
>     problem
>     > seems to working now, however, the resulting temperature
profile
>     seems
>     > very unrealistic.
>     >
>     > I am simulating using an injection/production rate of 75m3/h
over a
>     > period of 30 years. I inject water at 50 deg C and the
resultant cold
>     > water front tells me that the coupled process is working.
However, my
>     > production temperature should drop by a few degrees after
>     producing for
>     > 30 years but this is not the case, the production temperature
>     stays more
>     > or less constant.
>     >
>     > I have tried adjusting the .num file but with no reasonably
different
>     > outcome. I also ran some simulations where I increased the
>     permeability
>     > (2X, 5X, 10X..) of the fracture and I saw a bit of a production
>     > temperature decrease in those cases but even for 100X my base
>     > permeability the temperature decrease was just about 1 deg. I
>     attached a
>     > plot showing a few of the temperature profiles for the Base
>     Permeability
>     > case as well as some of the variations. In one case the
>     temperature even
>     > increased but here I did not use the mass lumping method and
>     > Streamline-Upwind/Petrov-Galerkin (SUPG) method.
>     >
>     > I suspect maybe I am not including the correct combination of
>     parameters
>     > in my .mmp file to properly simulate heat transfer between the
>     fluid and
>     > the matrix or something like that. I would greatly
appreciate any
>     advice
>     > that you may be able to give with regards to this problem. I
have
>     tried
>     > switching around a lot of parameters but I can't seem to get
a very
>     > realistic output.
>     >
>     > I have also attached my input files if that helps.
>     >
>     > Thanks,
>     > Ariel
>     >
>     >
>     > On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro Watanabe > >     >     wrote:
>     >
>     >     Hi Ariel,
>     >
>     >     > 1. I would like to inject water at a constant
temperate, I
>     >     implemented
>     >     > this as a temperature boundary condition on the same
>     injection pt.
>     >     So at
>     >     > the same point, I have set a CONSTANT_NEUMANN for liquid
>     flow and
>     >     > CONSTANT value for temperature.  Does OGS couple this
>     temperature
>     >     > condition with the water also being injected at that
point or
>     >     should I
>     >     > set a constant temperature at this point as a source
term as
>     well?
>     >
>     >     No, you shouldn't do it. Your setting (the injection
flow rate
>     as a
>     >     source term for liquid flow, the injection temperature as
>     Dirichlet BC
>     >     for heat transport) is fine.
>     >
>     >
>     >     > 2. Have I included the correct functions in my .num
file to
>     >     successfully
>     >     > implement a coupled liquid flow and heat transport
problem.
>     >
>     >     $OVERALL_COUPLING should be given before #NUMERICS as
below. and
>     >     $COUPLED_PROCESS is not needed in this case. The keyword is
>     useful when
>     >     you have more than two processes and want to make two of
them
>     coupled.
>     >
>     >     $OVERALL_COUPLING
>     >     ;min_iter -- max_iter
>     >     1 3
>     >     #NUMERICS
>     >     $PCS_TYPE
>     >     LIQUID_FLOW
>     >     ...
>     >     #NUMERICS
>     >     $PCS_TYPE
>     >     HEAT_TRANSPORT
>     >     ...
>     >     #STOP
>     >
>     >
>     >     Though I'm not sure which tutorials you have already
read, in
>     general I
>     >     recommend the followings to get an introduction about
geothermal
>     >     modeling with OGS:
>     >
>     >     [https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)
<[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)>
>     <[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)
<[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)>>
>     >     <[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)
<[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)>
>     <[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)
<[https://docs.opengeosys.org/books/geoenergy-modeling-i](https://docs.opengeosys.org/books/geoenergy-modeling-i)>>>
>     >
>
[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)>

>
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)>>

>
>     >
>
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)>

>
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)
<[https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf](https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf)>>>

>
>     >
>     >
>     >
>     >     Best,
>     >     Nori
>     >
>     >     --
>     >     Norihiro Watanabe, Dr.-Ing.
>     >     Department of Environmental Informatics (ENVINF)
>     >     Wissenschaftler
>     >
>     >     Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
>     >     Helmholtz Centre for Environmental Research GmbH - UFZ
>     >     Permoserstraße 15 / 04318 Leipzig / Germany
>     >
>     >     norihiro...@ufz.de <javascript:> / [http://www.ufz.de](http://www.ufz.de)
>     >     Telefon +49 341 235 1806
>     >
>     >     Sitz der Gesellschaft: Leipzig
>     >     Registergericht: Amtsgericht Leipzig, Handelsregister
Nr. B 4703
>     >     Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
>     >     Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
>     >     Administrativer Geschäftsführer: Dr. Heike Graßmann
>     >
>     > --
>     > You received this message because you are subscribed to the
Google
>     > Groups "ogs-users" group.
>     > To unsubscribe from this group and stop receiving emails
from it,
>     send
>     > an email to ogs-users+...@googlegroups.com <javascript:>
>     > <mailto:ogs-users+...@googlegroups.com <javascript:>>.
>     > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout)
<[https://groups.google.com/d/optout](https://groups.google.com/d/optout)>
>     <[https://groups.google.com/d/optout](https://groups.google.com/d/optout)
<[https://groups.google.com/d/optout](https://groups.google.com/d/optout)>>.
>
>     --
>     Norihiro Watanabe, Dr.-Ing.
>     Department of Environmental Informatics
>
>
>     Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
>     Helmholtz Centre for Environmental Research GmbH - UFZ
>     Permoserstraße 15 / 04318 Leipzig / Germany
>     Telefon +49 341 235 1806
>     norihiro...@ufz.de <javascript:> / [www.ufz.de](http://www.ufz.de)
<[http://www.ufz.de](http://www.ufz.de)> <[http://www.ufz.de](http://www.ufz.de)>
>
>
>     Sitz der Gesellschaft: Leipzig
>     Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
>     Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
>     Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
>     Administrativer Geschäftsführer: N.N.
>
> --
> You received this message because you are subscribed to the Google
> Groups "ogs-users" group.
> To unsubscribe from this group and stop receiving emails from it,
send
> an email to ogs-users+...@googlegroups.com <javascript:>
> <mailto:ogs-users+...@googlegroups.com <javascript:>>.
> For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout)
<[https://groups.google.com/d/optout](https://groups.google.com/d/optout)>.

--
Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics


Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro...@ufz.de <javascript:> / [www.ufz.de](http://www.ufz.de) <[http://www.ufz.de](http://www.ufz.de)>


Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.


You received this message because you are subscribed to the Google
Groups “ogs-users” group.
To unsubscribe from this group and stop receiving emails from it, send
an email to ogs-users+...@googlegroups.com

mailto:ogs-users+...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.


Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro...@ufz.de / www.ufz.de

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.

The breakthrough is affected mainly by the fracture permeability, the fracture aperture (i.e. volume), the matrix permeability, and boundary conditions for injection and production. you can change these parameters and see how they affect it.

Alternatively you may get some idea using an analytical solution for 2D. See section 4.4 in the following tutorial

https://docs.opengeosys.org/assets/files/Books/Geoenergy-Model-I/Basics-of-Heat-Transport-Processes-in-Geothermal-Systems-opt.pdf

CMR17
Good luck,
Nori

···

On 02/06/16 17:48, Ariel Thomas wrote:

Hi Nori,

Just seeing your last comment.

I ran the simulations last night with your initial suggestion of settign
the $STORAGE to zero and I got some more reasonable results (picture
attached) .

The temperature decrease is still very small and it could very well be
due to the MFP file as you suggested. I will make some adjustments.

Thanks,
Ariel

On Wednesday, June 1, 2016 at 11:49:55 PM UTC+2, Norihiro Watanabe wrote:

    Some more comments:
    - $SPECIFIC_HEAT_CONDUCTIVITY in MFP should be corrected to
    $HEAT_CONDUCTIVITY.
    - Always output element velocity (see below) instead of node
    velocity because the output of node velocity is wrong if your
    problem includes fractures.

    $NOD_VALUES
      PRESSURE1
      TEMPERATURE1
    $ELE_VALUES
      VELOCITY1_X

    Best,
    nori

    On 01/06/16 23:40, Ariel Thomas wrote:
    > Ohhh ok, I will try this.
    >
    > Thanks again!
    >
    > Ariel
    >
    > On Wednesday, June 1, 2016 at 10:47:33 PM UTC+2, Norihiro Watanabe > wrote:
    >
    > Ariel, can you try with setting zero or 1e-10 to $STORAGE in MMP?
    > 1e-5 is too large. The storage in LIQUID_FLOW is actually the
    > compressibility of media and is normally in a range of 1e-9 -
    1e-11,
    > e.g. water compressibility is 4e-10. Setting zero to the storage
    > means you calculate steady flow.
    >
    > nori
    >
    > On 01/06/16 21:38, Ariel Thomas wrote:
    > > I tried to attached a zip file but I kept getting an error
    and I
    > had to
    > > change the extension of the .msp file to .txt
    > >
    > > On Wednesday, June 1, 2016 at 9:22:07 PM UTC+2, Norihiro > Watanabe > > wrote:
    > >
    > > Ariel, can you send me the input files?
    > >
    > > nori
    > >
    > > On 01/06/16 21:18, Ariel Thomas wrote:
    > > > Hi Nori,
    > > >
    > > > I was able to make good progress with the geothermal
    doublet
    > > simulation
    > > > so far, thanks for your input, I appreciate it.
    > > >
    > > > I have run a few simulations in a reservoir with one
    fracture
    > > connecting
    > > > two injection points, the coupled fluid flow and heat
    transport
    > > problem
    > > > seems to working now, however, the resulting temperature
    > profile
    > > seems
    > > > very unrealistic.
    > > >
    > > > I am simulating using an injection/production rate of
    75m3/h
    > over a
    > > > period of 30 years. I inject water at 50 deg C and the
    > resultant cold
    > > > water front tells me that the coupled process is working.
    > However, my
    > > > production temperature should drop by a few degrees after
    > > producing for
    > > > 30 years but this is not the case, the production
    temperature
    > > stays more
    > > > or less constant.
    > > >
    > > > I have tried adjusting the .num file but with no
    reasonably
    > different
    > > > outcome. I also ran some simulations where I increased
    the
    > > permeability
    > > > (2X, 5X, 10X..) of the fracture and I saw a bit of a
    production
    > > > temperature decrease in those cases but even for 100X
    my base
    > > > permeability the temperature decrease was just about 1
    deg. I
    > > attached a
    > > > plot showing a few of the temperature profiles for the
    Base
    > > Permeability
    > > > case as well as some of the variations. In one case the
    > > temperature even
    > > > increased but here I did not use the mass lumping
    method and
    > > > Streamline-Upwind/Petrov-Galerkin (SUPG) method.
    > > >
    > > > I suspect maybe I am not including the correct
    combination of
    > > parameters
    > > > in my .mmp file to properly simulate heat transfer
    between the
    > > fluid and
    > > > the matrix or something like that. I would greatly
    > appreciate any
    > > advice
    > > > that you may be able to give with regards to this
    problem. I
    > have
    > > tried
    > > > switching around a lot of parameters but I can't seem
    to get
    > a very
    > > > realistic output.
    > > >
    > > > I have also attached my input files if that helps.
    > > >
    > > > Thanks,
    > > > Ariel
    > > >
    > > > On Tuesday, May 17, 2016 at 8:29:13 AM UTC+2, Norihiro > Watanabe > > > wrote:
    > > >
    > > > Hi Ariel,
    > > >
    > > > > 1. I would like to inject water at a constant
    > temperate, I
    > > > implemented
    > > > > this as a temperature boundary condition on the
    same
    > > injection pt.
    > > > So at
    > > > > the same point, I have set a CONSTANT_NEUMANN
    for liquid
    > > flow and
    > > > > CONSTANT value for temperature. Does OGS couple
    this
    > > temperature
    > > > > condition with the water also being injected at
    that
    > point or
    > > > should I
    > > > > set a constant temperature at this point as a
    source
    > term as
    > > well?
    > > >
    > > > No, you shouldn't do it. Your setting (the injection
    > flow rate
    > > as a
    > > > source term for liquid flow, the injection
    temperature as
    > > Dirichlet BC
    > > > for heat transport) is fine.
    > > >
    > > > > 2. Have I included the correct functions in my .num
    > file to
    > > > successfully
    > > > > implement a coupled liquid flow and heat transport
    > problem.
    > > >
    > > > $OVERALL_COUPLING should be given before #NUMERICS as
    > below. and
    > > > $COUPLED_PROCESS is not needed in this case. The
    keyword is
    > > useful when
    > > > you have more than two processes and want to make
    two of
    > them
    > > coupled.
    > > >
    > > > $OVERALL_COUPLING
    > > > ;min_iter -- max_iter
    > > > 1 3
    > > > #NUMERICS
    > > > $PCS_TYPE
    > > > LIQUID_FLOW
    > > > ...
    > > > #NUMERICS
    > > > $PCS_TYPE
    > > > HEAT_TRANSPORT
    > > > ...
    > > > #STOP
    > > >
    > > > Though I'm not sure which tutorials you have already
    > read, in
    > > general I
    > > > recommend the followings to get an introduction about
    > geothermal
    > > > modeling with OGS:
    > > >
    https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>
    > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>>
    > > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>
    > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>>>
    > > >
    <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>
    > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>>
    > > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>
    > <https://docs.opengeosys.org/books/geoenergy-modeling-i
    <https://docs.opengeosys.org/books/geoenergy-modeling-i>>>>
    > > >
    > >
    >
    https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>

    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>>

    >
    > >
    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>

    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>>>

    >
    > >
    > > >
    > >
    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>

    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>>

    >
    > >
    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>

    >
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf
    <https://github.com/norihiro-w/ogs5-egs/raw/gh-pages/docs/Tutorial_DF.pdf>>>>

    >
    > >
    > > >
    > > > Best,
    > > > Nori
    > > >
    > > > --
    > > > Norihiro Watanabe, Dr.-Ing.
    > > > Department of Environmental Informatics (ENVINF)
    > > > Wissenschaftler
    > > >
    > > > Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    > > > Helmholtz Centre for Environmental Research GmbH -
    UFZ
    > > > Permoserstraße 15 / 04318 Leipzig / Germany
    > > >
    > > > norihiro...@ufz.de <javascript:> / http://www.ufz.de
    > > > Telefon +49 341 235 1806
    > > >
    > > > Sitz der Gesellschaft: Leipzig
    > > > Registergericht: Amtsgericht Leipzig, Handelsregister
    > Nr. B 4703
    > > > Vorsitzender des Aufsichtsrats: MinDirig Wilfried
    Kraus
    > > > Wissenschaftlicher Geschäftsführer: Prof. Dr.
    Georg Teutsch
    > > > Administrativer Geschäftsführer: Dr. Heike Graßmann
    > > >
    > > > --
    > > > You received this message because you are subscribed
    to the
    > Google
    > > > Groups "ogs-users" group.
    > > > To unsubscribe from this group and stop receiving emails
    > from it,
    > > send
    > > > an email to ogs-users+...@googlegroups.com <javascript:>
    > > > <mailto:ogs-users+...@googlegroups.com <javascript:>>.
    > > > For more options, visit
    https://groups.google.com/d/optout
    > <https://groups.google.com/d/optout
    <https://groups.google.com/d/optout>>
    > > <https://groups.google.com/d/optout
    <https://groups.google.com/d/optout>
    > <https://groups.google.com/d/optout
    <https://groups.google.com/d/optout>>>.
    > >
    > > --
    > > Norihiro Watanabe, Dr.-Ing.
    > > Department of Environmental Informatics
    > >
    > > Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    > > Helmholtz Centre for Environmental Research GmbH - UFZ
    > > Permoserstraße 15 / 04318 Leipzig / Germany
    > > Telefon +49 341 235 1806
    > > norihiro...@ufz.de <javascript:> / www.ufz.de
    <http://www.ufz.de>
    > <http://www.ufz.de> <http://www.ufz.de>
    > >
    > > Sitz der Gesellschaft: Leipzig
    > > Registergericht: Amtsgericht Leipzig, Handelsregister
    Nr. B 4703
    > > Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    > > Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    > > Administrativer Geschäftsführer: N.N.
    > >
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    > --
    > Norihiro Watanabe, Dr.-Ing.
    > Department of Environmental Informatics
    >
    > Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    > Helmholtz Centre for Environmental Research GmbH - UFZ
    > Permoserstraße 15 / 04318 Leipzig / Germany
    > Telefon +49 341 235 1806
    > norihiro...@ufz.de <javascript:> / www.ufz.de
    <http://www.ufz.de> <http://www.ufz.de>
    >
    > Sitz der Gesellschaft: Leipzig
    > Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
    > Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    > Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    > Administrativer Geschäftsführer: N.N.
    >
    > --
    > You received this message because you are subscribed to the Google
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    > To unsubscribe from this group and stop receiving emails from it,
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    --
    Norihiro Watanabe, Dr.-Ing.
    Department of Environmental Informatics

    Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    Helmholtz Centre for Environmental Research GmbH - UFZ
    Permoserstraße 15 / 04318 Leipzig / Germany
    Telefon +49 341 235 1806
    norihiro...@ufz.de <javascript:> / www.ufz.de <http://www.ufz.de>

    Sitz der Gesellschaft: Leipzig
    Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
    Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
    Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
    Administrativer Geschäftsführer: N.N.

--
You received this message because you are subscribed to the Google
Groups "ogs-users" group.
To unsubscribe from this group and stop receiving emails from it, send
an email to ogs-users+unsubscribe@googlegroups.com
<mailto:ogs-users+unsubscribe@googlegroups.com>.
For more options, visit https://groups.google.com/d/optout.

--
Norihiro Watanabe, Dr.-Ing.
Department of Environmental Informatics

Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
Helmholtz Centre for Environmental Research GmbH - UFZ
Permoserstraße 15 / 04318 Leipzig / Germany
Telefon +49 341 235 1806
norihiro.watanabe@ufz.de / www.ufz.de

Sitz der Gesellschaft: Leipzig
Registergericht: Amtsgericht Leipzig, Handelsregister Nr. B 4703
Vorsitzender des Aufsichtsrats: MinDirig Wilfried Kraus
Wissenschaftlicher Geschäftsführer: Prof. Dr. Georg Teutsch
Administrativer Geschäftsführer: N.N.