RPTRST switch FLOWS

[dr-robertk]

Within the IOR Centre there is the desire to couple OPM with IORSim through restart files (as a first step). IORSim relies on the output of inter block flow fields. The output of these values is done by the switch FLOWS as part of the RPTRST keyword.

What is the best way to add this functionality? The flow fields are obviously available in OPM and the output of face values should also be available.

[joakim-hove]

1. Update the IOConfig object: https://github.com/OPM/opm-parser/blob/master/opm/parser/eclipse/EclipseState/IOConfig/IOConfig.hpp to internalize the FLOWS mnemonic from the RPTRST keyword.
2. Then I would say the EclipseWriter class here in opm-output should be updated by dumping the relevant fields in the restart ouptut. If you send me an example of a Eclipse generated restart file with the necessary content I can probably advice a bit further.

[atgeirr]

My question is how are these data structured in the output file. While we have a face/connection (if we include NNCs) ordering, it would not be the same as that used by i.e. Eclipse. Are these data structured in a logical cartesian manner for example?

[joakim-hove]

Are these data structured in a logical cartesian manner for example?

I don't know; but by staring at a file generated by Eclipse we might be able to infer it? I we have the source to the IORSim application we might be able to learn something from that as well.

[atgeirr]

I we have the source to the IORSim application we might be able to learn something from that as well

IORSim is closed source (correct?). However since it is made by the IOR center we should be able to discuss this with the authors.

[dr-robertk]

I'm not sure about the open- or closedness of IORSim. But there is room for discussion next week at the IOR conference. For now I have no idea how the data is organized. But I'll double check.

[atgeirr]

For flow diagnostics purposes we also need FLOWRES (giving interblock reservoir volume flows), just adding it to this issue as a future reminder.

[EnricoScantamburlo]

Hello,
we use 3DSL to calculate streamlines from ECLIPSE output

3DSL needs one of these settings
RPTRST
BASIC=4
FLORES /

or

RPTRST
BASIC=6
FLOWS DENS DENO DENG RS /

or

RPTRST
BASIC=6
FLOOIL FLOGAS FLOWAT DENW DENO DENG RS
/

I already saw that BASIC=6 is not supported, but it is not a big problem, adding support to the other keywords would be really appreciated.

[atgeirr]

There has been some effort related to this (although not finished), see the discussion in OPM/opm-simulators#1039.