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https://github.com/OPM/opm-simulators.git
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462 lines
18 KiB
C++
462 lines
18 KiB
C++
/*
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Copyright 2013 SINTEF ICT, Applied Mathematics.
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Copyright 2014 IRIS AS
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Copyright 2015 Andreas Lauser
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <algorithm>
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namespace Opm
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{
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template <class Implementation>
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SimulatorBase<Implementation>::SimulatorBase(const parameter::ParameterGroup& param,
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const Grid& grid,
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const DerivedGeology& geo,
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BlackoilPropsAdInterface& props,
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const RockCompressibility* rock_comp_props,
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NewtonIterationBlackoilInterface& linsolver,
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const double* gravity,
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const bool has_disgas,
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const bool has_vapoil,
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std::shared_ptr<EclipseState> eclipse_state,
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OutputWriter& output_writer,
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const std::vector<double>& threshold_pressures_by_face)
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: param_(param),
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model_param_(param),
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solver_param_(param),
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grid_(grid),
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props_(props),
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rock_comp_props_(rock_comp_props),
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gravity_(gravity),
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geo_(geo),
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solver_(linsolver),
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has_disgas_(has_disgas),
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has_vapoil_(has_vapoil),
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terminal_output_(param.getDefault("output_terminal", true)),
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eclipse_state_(eclipse_state),
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output_writer_(output_writer),
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rateConverter_(props_, std::vector<int>(AutoDiffGrid::numCells(grid_), 0)),
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threshold_pressures_by_face_(threshold_pressures_by_face)
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{
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// Misc init.
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const int num_cells = AutoDiffGrid::numCells(grid);
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allcells_.resize(num_cells);
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for (int cell = 0; cell < num_cells; ++cell) {
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allcells_[cell] = cell;
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}
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#if HAVE_MPI
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if ( terminal_output_ ) {
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if ( solver_.parallelInformation().type() == typeid(ParallelISTLInformation) )
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{
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const ParallelISTLInformation& info =
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boost::any_cast<const ParallelISTLInformation&>(solver_.parallelInformation());
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// Only rank 0 does print to std::cout
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terminal_output_ = ( info.communicator().rank() == 0 );
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is_parallel_run_ = ( info.communicator().size() > 1 );
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}
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}
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#endif
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}
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template <class Implementation>
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SimulatorReport SimulatorBase<Implementation>::run(SimulatorTimer& timer,
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ReservoirState& state)
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{
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WellState prev_well_state;
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// Create timers and file for writing timing info.
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Opm::time::StopWatch solver_timer;
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double stime = 0.0;
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Opm::time::StopWatch step_timer;
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Opm::time::StopWatch total_timer;
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total_timer.start();
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std::string tstep_filename = output_writer_.outputDirectory() + "/step_timing.txt";
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std::ofstream tstep_os(tstep_filename.c_str());
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// adaptive time stepping
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std::unique_ptr< AdaptiveTimeStepping > adaptiveTimeStepping;
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if( param_.getDefault("timestep.adaptive", true ) )
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{
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adaptiveTimeStepping.reset( new AdaptiveTimeStepping( param_, solver_.parallelInformation() ) );
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}
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// init output writer
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output_writer_.writeInit( timer );
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std::string restorefilename = param_.getDefault("restorefile", std::string("") );
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if( ! restorefilename.empty() )
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{
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// -1 means that we'll take the last report step that was written
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const int desiredRestoreStep = param_.getDefault("restorestep", int(-1) );
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output_writer_.restore( timer, state, prev_well_state, restorefilename, desiredRestoreStep );
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}
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unsigned int totalNewtonIterations = 0;
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unsigned int totalLinearIterations = 0;
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// Main simulation loop.
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while (!timer.done()) {
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// Report timestep.
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step_timer.start();
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if ( terminal_output_ )
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{
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timer.report(std::cout);
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}
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// Create wells and well state.
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WellsManager wells_manager(eclipse_state_,
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timer.currentStepNum(),
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Opm::UgGridHelpers::numCells(grid_),
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Opm::UgGridHelpers::globalCell(grid_),
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Opm::UgGridHelpers::cartDims(grid_),
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Opm::UgGridHelpers::dimensions(grid_),
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Opm::UgGridHelpers::cell2Faces(grid_),
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Opm::UgGridHelpers::beginFaceCentroids(grid_),
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props_.permeability(),
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is_parallel_run_);
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const Wells* wells = wells_manager.c_wells();
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WellState well_state;
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well_state.init(wells, state, prev_well_state);
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// give the polymer and surfactant simulators the chance to do their stuff
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asImpl().handleAdditionalWellInflow(timer, wells_manager, well_state, wells);
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// write simulation state at the report stage
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output_writer_.writeTimeStep( timer, state, well_state );
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// Max oil saturation (for VPPARS), hysteresis update.
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props_.updateSatOilMax(state.saturation());
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props_.updateSatHyst(state.saturation(), allcells_);
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// Compute reservoir volumes for RESV controls.
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asImpl().computeRESV(timer.currentStepNum(), wells, state, well_state);
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// Run a multiple steps of the solver depending on the time step control.
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solver_timer.start();
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auto solver = asImpl().createSolver(wells);
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// If sub stepping is enabled allow the solver to sub cycle
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// in case the report steps are too large for the solver to converge
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//
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// \Note: The report steps are met in any case
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// \Note: The sub stepping will require a copy of the state variables
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if( adaptiveTimeStepping ) {
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adaptiveTimeStepping->step( timer, *solver, state, well_state, output_writer_ );
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}
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else {
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// solve for complete report step
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solver->step(timer.currentStepLength(), state, well_state);
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}
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// take time that was used to solve system for this reportStep
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solver_timer.stop();
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// accumulate the number of Newton and Linear Iterations
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totalNewtonIterations += solver->newtonIterations();
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totalLinearIterations += solver->linearIterations();
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// Report timing.
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const double st = solver_timer.secsSinceStart();
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if ( terminal_output_ )
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{
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std::cout << "Fully implicit solver took: " << st << " seconds." << std::endl;
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}
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stime += st;
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if ( output_writer_.output() ) {
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SimulatorReport step_report;
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step_report.pressure_time = st;
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step_report.total_time = step_timer.secsSinceStart();
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step_report.reportParam(tstep_os);
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}
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// Increment timer, remember well state.
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++timer;
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prev_well_state = well_state;
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}
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// Write final simulation state.
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output_writer_.writeTimeStep( timer, state, prev_well_state );
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// Stop timer and create timing report
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total_timer.stop();
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SimulatorReport report;
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report.pressure_time = stime;
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report.transport_time = 0.0;
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report.total_time = total_timer.secsSinceStart();
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report.total_newton_iterations = totalNewtonIterations;
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report.total_linear_iterations = totalLinearIterations;
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return report;
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}
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namespace SimFIBODetails {
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typedef std::unordered_map<std::string, WellConstPtr> WellMap;
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inline WellMap
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mapWells(const std::vector<WellConstPtr>& wells)
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{
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WellMap wmap;
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for (std::vector<WellConstPtr>::const_iterator
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w = wells.begin(), e = wells.end();
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w != e; ++w)
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{
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wmap.insert(std::make_pair((*w)->name(), *w));
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}
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return wmap;
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}
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inline int
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resv_control(const WellControls* ctrl)
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{
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int i, n = well_controls_get_num(ctrl);
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bool match = false;
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for (i = 0; (! match) && (i < n); ++i) {
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match = well_controls_iget_type(ctrl, i) == RESERVOIR_RATE;
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}
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if (! match) { i = 0; }
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return i - 1; // -1 if no match, undo final "++" otherwise
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}
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inline bool
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is_resv(const Wells& wells,
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const int w)
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{
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return (0 <= resv_control(wells.ctrls[w]));
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}
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inline bool
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is_resv(const WellMap& wmap,
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const std::string& name,
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const std::size_t step)
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{
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bool match = false;
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WellMap::const_iterator i = wmap.find(name);
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if (i != wmap.end()) {
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WellConstPtr wp = i->second;
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match = (wp->isProducer(step) &&
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wp->getProductionProperties(step)
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.hasProductionControl(WellProducer::RESV))
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|| (wp->isInjector(step) &&
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wp->getInjectionProperties(step)
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.hasInjectionControl(WellInjector::RESV));
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}
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return match;
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}
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inline std::vector<int>
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resvWells(const Wells* wells,
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const std::size_t step,
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const WellMap& wmap)
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{
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std::vector<int> resv_wells;
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if( wells )
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{
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for (int w = 0, nw = wells->number_of_wells; w < nw; ++w) {
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if (is_resv(*wells, w) ||
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((wells->name[w] != 0) &&
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is_resv(wmap, wells->name[w], step)))
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{
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resv_wells.push_back(w);
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}
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}
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}
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return resv_wells;
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}
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inline void
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historyRates(const PhaseUsage& pu,
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const WellProductionProperties& p,
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std::vector<double>& rates)
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{
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assert (! p.predictionMode);
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assert (rates.size() ==
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std::vector<double>::size_type(pu.num_phases));
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if (pu.phase_used[ BlackoilPhases::Aqua ]) {
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const std::vector<double>::size_type
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i = pu.phase_pos[ BlackoilPhases::Aqua ];
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rates[i] = p.WaterRate;
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}
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if (pu.phase_used[ BlackoilPhases::Liquid ]) {
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const std::vector<double>::size_type
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i = pu.phase_pos[ BlackoilPhases::Liquid ];
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rates[i] = p.OilRate;
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}
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if (pu.phase_used[ BlackoilPhases::Vapour ]) {
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const std::vector<double>::size_type
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i = pu.phase_pos[ BlackoilPhases::Vapour ];
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rates[i] = p.GasRate;
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}
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}
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} // namespace SimFIBODetails
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template <class Implementation>
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void SimulatorBase<Implementation>::handleAdditionalWellInflow(SimulatorTimer& /* timer */,
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WellsManager& /* wells_manager */,
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WellState& /* well_state */,
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const Wells* /* wells */)
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{ }
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template <class Implementation>
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auto SimulatorBase<Implementation>::createSolver(const Wells* wells)
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-> std::unique_ptr<Solver>
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{
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auto model = std::unique_ptr<Model>(new Model(model_param_,
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grid_,
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props_,
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geo_,
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rock_comp_props_,
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wells,
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solver_,
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has_disgas_,
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has_vapoil_,
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terminal_output_));
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if (!threshold_pressures_by_face_.empty()) {
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model->setThresholdPressures(threshold_pressures_by_face_);
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}
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return std::unique_ptr<Solver>(new Solver(solver_param_, std::move(model)));
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}
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template <class Implementation>
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void SimulatorBase<Implementation>::computeRESV(const std::size_t step,
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const Wells* wells,
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const BlackoilState& x,
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WellState& xw)
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{
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typedef SimFIBODetails::WellMap WellMap;
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const std::vector<WellConstPtr>& w_ecl = eclipse_state_->getSchedule()->getWells(step);
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const WellMap& wmap = SimFIBODetails::mapWells(w_ecl);
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const std::vector<int>& resv_wells = SimFIBODetails::resvWells(wells, step, wmap);
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if (! resv_wells.empty()) {
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const PhaseUsage& pu = props_.phaseUsage();
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const std::vector<double>::size_type np = props_.numPhases();
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rateConverter_.defineState(x);
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std::vector<double> distr (np);
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std::vector<double> hrates(np);
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std::vector<double> prates(np);
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for (std::vector<int>::const_iterator
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rp = resv_wells.begin(), e = resv_wells.end();
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rp != e; ++rp)
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{
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WellControls* ctrl = wells->ctrls[*rp];
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const bool is_producer = wells->type[*rp] == PRODUCER;
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// RESV control mode, all wells
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{
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const int rctrl = SimFIBODetails::resv_control(ctrl);
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if (0 <= rctrl) {
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const std::vector<double>::size_type off = (*rp) * np;
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if (is_producer) {
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// Convert to positive rates to avoid issues
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// in coefficient calculations.
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std::transform(xw.wellRates().begin() + (off + 0*np),
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xw.wellRates().begin() + (off + 1*np),
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prates.begin(), std::negate<double>());
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} else {
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std::copy(xw.wellRates().begin() + (off + 0*np),
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xw.wellRates().begin() + (off + 1*np),
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prates.begin());
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}
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const int fipreg = 0; // Hack. Ignore FIP regions.
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rateConverter_.calcCoeff(prates, fipreg, distr);
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well_controls_iset_distr(ctrl, rctrl, & distr[0]);
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}
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}
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// RESV control, WCONHIST wells. A bit of duplicate
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// work, regrettably.
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if (is_producer && wells->name[*rp] != 0) {
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WellMap::const_iterator i = wmap.find(wells->name[*rp]);
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if (i != wmap.end()) {
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WellConstPtr wp = i->second;
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const WellProductionProperties& p =
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wp->getProductionProperties(step);
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if (! p.predictionMode) {
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// History matching (WCONHIST/RESV)
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SimFIBODetails::historyRates(pu, p, hrates);
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const int fipreg = 0; // Hack. Ignore FIP regions.
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rateConverter_.calcCoeff(hrates, fipreg, distr);
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// WCONHIST/RESV target is sum of all
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// observed phase rates translated to
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// reservoir conditions. Recall sign
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// convention: Negative for producers.
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const double target =
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- std::inner_product(distr.begin(), distr.end(),
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hrates.begin(), 0.0);
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well_controls_clear(ctrl);
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well_controls_assert_number_of_phases(ctrl, int(np));
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const int ok_resv =
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well_controls_add_new(RESERVOIR_RATE, target,
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& distr[0], ctrl);
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// For WCONHIST/RESV the BHP limit is set to 1 atm.
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// TODO: Make it possible to modify the BHP limit using
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// the WELTARG keyword
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const int ok_bhp =
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well_controls_add_new(BHP, unit::convert::from(1.0, unit::atm),
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NULL, ctrl);
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if (ok_resv != 0 && ok_bhp != 0) {
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xw.currentControls()[*rp] = 0;
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well_controls_set_current(ctrl, 0);
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}
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}
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}
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}
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}
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}
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}
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} // namespace Opm
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