[Opm] Rel Perm measurements with FLOW

Mon Aug 10 11:16:40 UTC 2020

Apologies to the list, I thought you had messaged me only :)

Thanks Alf that was very helpful!
Best,
Lezin
________________________________________
From: Alf Birger Rustad <abir at equinor.com>
Sent: Monday, August 10, 2020 1:14 PM
To: Lezin Galibert
Cc: opm at opm-project.org
Subject: RE: Rel Perm measurements with FLOW

Hi Lezin,

Actually, I have not checked how flexible opendect is. It is open source though, so you should be able to point it to your Flow binary of choice without too much effort. That also goes for running in parallel, as it is as simple as invoking Flow with mpirun. It may not be catered to in the application, but finding where in the code it calls Flow, and replacing with what you want, is probably quite easy.

Flow_ebos is an experimental code, that is quite close to Flow these days. We are looking at ways to unify the two more. As a user, Flow is what you want to look at though. Flow_ebos still lacks functionality found in Flow, and the numerics is less tested.

BTW, you forgot to cc the mailing list. Re-added it in this e-mail.

Cheers,
Alf

-----Original Message-----
From: Lezin Galibert <Lezin.Galibert at petricore.com>
Sent: mandag 10. august 2020 09:55
To: Alf Birger Rustad <abir at equinor.com>
Subject: Re: Rel Perm measurements with FLOW

Hello Alf,

Thanks a lot for your email, this should help us a lot! I will give it a try.

I had a couple of other questions related to this:
- is it possible to parallelize the simulation with Opendect?
- do I need to have flow compiled or is it fine to install it with yum?
- while looking into the opm-simulator repo, I noticed that there is a flow and a flow_ebos. What is the difference between those two? As far as I understood, they are different implementations of the flow simulator, but I'm not sure I understood how.
- follow up on the previous question: does the difference matter in the case of using opendect?

Looking forward and thank you again for your help!
Lezin

On Mon, 2020-08-10 at 06:21 +0000, Alf Birger Rustad wrote:
> Hi Lezin,
>
> The short answer is yes, and there are multiple ways of doing it.
> Unfortunately, Flow does not support setting boundary conditions on
> inlet nor outlet directly, so you will need to set up wells to mimick
> inflow and outflow. However, patches are welcome if anybody is up to
> the task. That said, you will find a ready made application for your
> task (including history matching the experiment) in the opendect
> repository. If you choose to set-up the simulation yourself using
> Flow, you have multiple ways to get hold of the saturation
> distribution. The simplest may be to open the simulation in Resinsight
> and extract saturations with an octave script. The most efficient is
> to use python wrappers to opm-common to extract saturations directly
> from the restart files.
>
> Good luck!
> Alf
>
> -----Original Message-----
> From: Opm <opm-bounces at opm-project.org> On Behalf Of Lezin Galibert
> Sent: fredag 7. august 2020 12:00
> To: opm at opm-project.org
> Subject: [Opm] Rel Perm measurements with FLOW
>
> Hello everyone,
>
> I would like to use FLOW to simulate an unsteady state rel perm
> measurements (i.e. low rate injection of brine) as well as a steady
> state rel perm measurements (i.e. constant fractional flow at each
> global Sw value). Ideally I would also like to retrieve the Sw
> distribution after the simulation is over.
>
> Is this something possible to do?
>
> Thank you!
> Lezin?
>
>
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