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Move computation of well potentials from simulator class ot model class
- the computation of well potentials in the model class calculates the well potentials using computeWellFlux() - in this way the well potential calculations also handle well where some perforations are closed by the simulator due to cross-flow. - the well potentials pr perforation and phase is stored in the well state.
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Tor Harald Sandve
parent
d9787f7593
commit
18246263e9
@ -406,6 +406,28 @@ namespace Opm {
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WellState& well_state);
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void
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<<<<<<< HEAD
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=======
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computeWellFlux(const SolutionState& state,
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const std::vector<ADB>& mob_perfcells,
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const std::vector<ADB>& b_perfcells,
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V& aliveWells,
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std::vector<ADB>& cq_s) const;
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void
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updatePerfPhaseRatesAndPressures(const std::vector<ADB>& cq_s,
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const SolutionState& state,
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WellState& xw) const;
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void
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computeWellPotentials(const SolutionState& state,
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const std::vector<ADB>& mob_perfcells,
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const std::vector<ADB>& b_perfcells,
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WellState& well_state);
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void
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>>>>>>> Move computation of well potentials from simulator class ot model class
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addWellFluxEq(const std::vector<ADB>& cq_s,
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const SolutionState& state);
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@ -867,9 +867,104 @@ namespace detail {
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asImpl().addWellFluxEq(cq_s, state);
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asImpl().addWellContributionToMassBalanceEq(cq_s, state, well_state);
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asImpl().addWellControlEq(state, well_state, aliveWells);
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asImpl().computeWellPotentials(state, mob_perfcells, b_perfcells, well_state);
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}
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template <class Grid, class Implementation>
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void
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BlackoilModelBase<Grid, Implementation>::
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computeWellPotentials(const SolutionState& state,
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const std::vector<ADB>& mob_perfcells,
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const std::vector<ADB>& b_perfcells,
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WellState& well_state)
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{
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const int nw = wells().number_of_wells;
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const int np = wells().number_of_phases;
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// const Opm::PhaseUsage pu = fluid_.phaseUsage();
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V bhps = V::Zero(nw);
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for (int w = 0; w < nw; ++w) {
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const WellControls* ctrl = wells().ctrls[w];
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const int nwc = well_controls_get_num(ctrl);
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//Loop over all controls until we find a BHP control
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//or a THP control that specifies what we need.
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//Pick the value that gives largest potential flow
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for (int ctrl_index=0; ctrl_index < nwc; ++ctrl_index) {
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if (well_controls_iget_type(ctrl, ctrl_index) == BHP) {
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bhps[w] = well_controls_iget_target(ctrl, ctrl_index);
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}
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// if(well_controls_iget_type(ctrl, ctrl_index) == THP) {
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// double aqua = 0.0;
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// double liquid = 0.0;
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// double vapour = 0.0;
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// if (active_[ Water ]) {
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// aqua = well_state.wellRates()[w*np + pu.phase_pos[ Water ] ];
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// }
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// if (active_[ Oil ]) {
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// liquid = well_state.wellRates()[w*np + pu.phase_pos[ Oil ] ];
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// }
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// if (active_[ Gas ]) {
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// vapour = well_state.wellRates()[w*np + pu.phase_pos[ Gas ] ];
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// }
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// const int vfp = well_controls_iget_vfp(ctrl, ctrl_index);
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// const double& thp = well_controls_iget_target(ctrl, ctrl_index);
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// const double& alq = well_controls_iget_alq(ctrl, ctrl_index);
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// //Set *BHP* target by calculating bhp from THP
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// const WellType& well_type = wells().type[w];
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// if (well_type == INJECTOR) {
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// double dp = detail::computeHydrostaticCorrection(
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// wells(), w, vfp_properties_.getInj()->getTable(vfp)->getDatumDepth(),
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// well_perforation_densities_, gravity);
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// const double bhp = vfp_properties_.getInj()->bhp(vfp, aqua, liquid, vapour, thp) - dp;
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// // pick the bhp that gives the largest potentials i.e. largest bhp for injectors
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// if ( bhp > bhps[w]) {
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// bhps[w] = bhp;
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// }
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// }
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// else if (well_type == PRODUCER) {
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// double dp = detail::computeHydrostaticCorrection(
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// wells(), w, vfp_properties_.getProd()->getTable(vfp)->getDatumDepth(),
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// well_perforation_densities_, gravity);
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// const double bhp = vfp_properties_.getProd()->bhp(vfp, aqua, liquid, vapour, thp, alq) - dp;
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// // pick the bhp that gives the largest potentials i.e. smalest bhp for producers
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// if ( bhp < bhps[w]) {
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// bhps[w] = bhp;
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// }
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// }
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// else {
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// OPM_THROW(std::logic_error, "Expected PRODUCER or INJECTOR type of well");
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// }
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// }
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}
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}
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// use bhp limit from control
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SolutionState state0 = state;
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asImpl().makeConstantState(state0);
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state0.bhp = ADB::constant(bhps);
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// compute well potentials
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V aliveWells;
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std::vector<ADB> well_potentials;
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asImpl().computeWellFlux(state0, mob_perfcells, b_perfcells, aliveWells, well_potentials);
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// store well potentials in the well state
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// transform to a single vector instead of separate vectors pr phase
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const int nperf = wells().well_connpos[nw];
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V cq = superset(well_potentials[0].value(), Span(nperf, np, 0), nperf*np);
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for (int phase = 1; phase < np; ++phase) {
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cq += superset(well_potentials[phase].value(), Span(nperf, np, phase), nperf*np);
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}
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well_state.wellPotentials().assign(cq.data(), cq.data() + nperf*np);
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}
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@ -396,30 +396,12 @@ namespace Opm
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{
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const int nw = wells->number_of_wells;
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const int np = wells->number_of_phases;
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well_potentials.clear();
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well_potentials.resize(nw*np,0.0);
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well_potentials.resize(nw*np,0.0);
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for (int w = 0; w < nw; ++w) {
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for (int perf = wells->well_connpos[w]; perf < wells->well_connpos[w + 1]; ++perf) {
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const double well_cell_pressure = x.pressure()[wells->well_cells[perf]];
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const double drawdown_used = well_cell_pressure - xw.perfPress()[perf];
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const WellControls* ctrl = wells->ctrls[w];
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const int nwc = well_controls_get_num(ctrl);
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//Loop over all controls until we find a BHP control
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//that specifies what we need...
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double bhp = 0.0;
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for (int ctrl_index=0; ctrl_index < nwc; ++ctrl_index) {
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if (well_controls_iget_type(ctrl, ctrl_index) == BHP) {
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bhp = well_controls_iget_target(ctrl, ctrl_index);
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}
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// TODO: do something for thp;
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}
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// Calculate the pressure difference in the well perforation
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const double dp = xw.perfPress()[perf] - xw.bhp()[w];
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const double drawdown_maximum = well_cell_pressure - (bhp + dp);
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for (int phase = 0; phase < np; ++phase) {
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well_potentials[w*np + phase] += (drawdown_maximum / drawdown_used * xw.perfPhaseRates()[perf*np + phase]);
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well_potentials[w*np + phase] += xw.wellPotentials()[perf*np + phase];
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}
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}
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}
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@ -102,6 +102,9 @@ namespace Opm
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current_controls_[w] = well_controls_get_current(wells->ctrls[w]);
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}
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well_potentials_.clear();
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well_potentials_.resize(nperf * np, 0.0);
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// intialize wells that have been there before
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// order may change so the mapping is based on the well name
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if( ! prevState.wellMap().empty() )
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@ -184,9 +187,14 @@ namespace Opm
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std::vector<int>& currentControls() { return current_controls_; }
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const std::vector<int>& currentControls() const { return current_controls_; }
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/// One rate per phase and well connection.
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std::vector<double>& wellPotentials() { return well_potentials_; }
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const std::vector<double>& wellPotentials() const { return well_potentials_; }
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private:
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std::vector<double> perfphaserates_;
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std::vector<int> current_controls_;
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std::vector<double> well_potentials_;
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};
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} // namespace Opm
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