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tracking if wells are newly added in WellStateFullyImplicitBlackoil

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For a newly added well, the initialized rate cans cause big problem when
applied to VFP interploation when THP control is involved.
This commit is contained in:
Kai Bao 2017-04-03 15:07:56 +02:00
parent a8ae9276c5
commit ef7769b77e
3 changed files with 44 additions and 6 deletions
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17
opm/autodiff/StandardWellsDense_impl.hpp
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@ -1755,11 +1755,22 @@ namespace Opm {
computeWellRatesWithBhp(ebosSimulator, bhp, w, potentials);
} else { // the well has a THP related constraint
// checking whether a well is newly added, it only happens at the beginning of the report step
if ( !well_state.isNewWell(w) ) {
for (int p = 0; p < np; ++p) {
// TODO: this is dangerous for new added well
// since we are not handling the initialization correctly for now
potentials[p] = well_state.wellRates()[w * np + p];
}
} else {
// We need to generate a reasonable rates to start the iteration process
computeWellRatesWithBhp(ebosSimulator, bhp, w, potentials);
for (double& value : potentials) {
// make the value a little safer in case the BHP limits are default ones
// TODO: a better way should be a better rescaling based on the investigation of the VFP table.
value *= 0.001;
}
}
potentials = computeWellPotentialWithTHP(ebosSimulator, w, bhp, potentials);
}
@ -1875,6 +1886,12 @@ namespace Opm {
const int control = well_controls_get_current(wc);
well_state.currentControls()[w] = control;
updateWellStateWithTarget(wc, control, w, well_state);
// The wells are not considered to be newly added
// for next time step
if (well_state.isNewWell(w) ) {
well_state.setNewWell(w, false);
}
}
}

21
opm/autodiff/WellStateFullyImplicitBlackoil.hpp
View File

@ -106,6 +106,8 @@ namespace Opm
well_potentials_.clear();
well_potentials_.resize(nperf * np, 0.0);
is_new_well_.resize(nw, true);
// intialize wells that have been there before
// order may change so the mapping is based on the well name
if( ! prevState.wellMap().empty() )
@ -117,6 +119,9 @@ namespace Opm
const_iterator it = prevState.wellMap().find( name );
if( it != end )
{
// this is not a new added well
is_new_well_[w] = false;
const int oldIndex = (*it).second[ 0 ];
const int newIndex = w;
@ -273,10 +278,26 @@ namespace Opm
return res;
}
bool isNewWell(const int w) const {
return is_new_well_[w];
}
void setNewWell(const int w, const bool is_new_well) {
is_new_well_[w] = is_new_well;
}
private:
std::vector<double> perfphaserates_;
std::vector<int> current_controls_;
std::vector<double> well_potentials_;
// marking whether the well is just added
// for newly added well, the current initialized rates from WellState
// will have very wrong compsitions for productions wells, will mostly cause
// problem with VFP interpolation
std::vector<bool> is_new_well_;
};
} // namespace Opm