[Opm] Oil-water-gas rates at perforation in simulators

[Jørgen Kvalsvik]

And if I want to support other simulators than Flow? Will all simulators use WellState as a base *and* be able to offer these values?
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Fra: Opm [opm-bounces at opm-project.org] på vegne av Atgeirr Rasmussen [Atgeirr.Rasmussen at sintef.no]
Sendt: 6. april 2016 10:45
Til: opm at opm-project.org
Emne: Re: [Opm] Oil-water-gas rates at perforation in simulators


6. apr. 2016 kl. 10.34 skrev Jørgen Kvalsvik <JOKVA at statoil.com<mailto:JOKVA at statoil.com>>:

Hi,

I'm working on a better way of doing (Eclipse-compatible) output, and need to grab some info from the simulators.

I have a WellState (and possibly Well* from opm-core) that I want to extract rates at some perforation. It seems to me that the perfRates in WellState only store the combined rate of oil, water and gas, and not the three individual rates (which I'm interested in outputting). Are there any way of grabbing these three on a per-well per-connection basis from WellState?

I (think I) have traced the computation of the rates to compute_wflux in cfs_tpfa_residual.c. Please correct me if I'm wrong, but if this is correct then it also seems to only care about the total because it accumulates the phase mobilities before computing the flux (which I is more-or-less directly assigned to WellState::perfRates).

You are looking at older things designed for the two-phase operator-split simulators.

We kept using (by inheritance) the same state classes when we started the three-phase fully implicit black-oil effort,
which saved effort but may be confusing. Quite possible that was a bad choice at the time.


tl;dr: how can I grab individual oil/water/gas rates at each perforation for a well?

The well state class used for Flow is in opm/autodiff/WellStateFullyImplicitBlackoil.hpp.
Its perfPhaseRates() member should contain exactly what you are looking for.

Atgeirr



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