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https://github.com/OPM/opm-simulators.git
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209 lines
6.8 KiB
C++
209 lines
6.8 KiB
C++
/*
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Copyright 2017 SINTEF Digital, Mathematics and Cybernetics.
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Copyright 2017 Statoil ASA.
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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 <config.h>
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#include <opm/simulators/wells/MultisegmentWellGeneric.hpp>
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#include <opm/common/utility/numeric/RootFinders.hpp>
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#include <opm/input/eclipse/Schedule/VFPInjTable.hpp>
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#include <opm/input/eclipse/Schedule/MSW/WellSegments.hpp>
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#include <opm/simulators/utils/DeferredLoggingErrorHelpers.hpp>
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#include <opm/simulators/wells/VFPHelpers.hpp>
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#include <opm/simulators/wells/VFPProperties.hpp>
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#include <opm/simulators/wells/WellBhpThpCalculator.hpp>
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#include <opm/simulators/wells/WellHelpers.hpp>
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#include <opm/simulators/wells/WellInterfaceGeneric.hpp>
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#include <opm/simulators/wells/WellState.hpp>
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#include <cassert>
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#include <cmath>
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#include <stdexcept>
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#include <fmt/format.h>
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namespace Opm
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{
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template<typename Scalar>
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MultisegmentWellGeneric<Scalar>::
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MultisegmentWellGeneric(WellInterfaceGeneric& baseif)
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: baseif_(baseif)
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{
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}
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template<typename Scalar>
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void
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MultisegmentWellGeneric<Scalar>::
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scaleSegmentRatesWithWellRates(const std::vector<std::vector<int>>& segment_inlets,
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const std::vector<std::vector<int>>& segment_perforations,
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WellState& well_state) const
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{
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auto& ws = well_state.well(baseif_.indexOfWell());
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auto& segments = ws.segments;
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auto& segment_rates = segments.rates;
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for (int phase = 0; phase < baseif_.numPhases(); ++phase) {
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const double unscaled_top_seg_rate = segment_rates[phase];
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const double well_phase_rate = ws.surface_rates[phase];
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if (std::abs(unscaled_top_seg_rate) > 1e-12) {
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for (int seg = 0; seg < numberOfSegments(); ++seg) {
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segment_rates[baseif_.numPhases() * seg + phase] *= well_phase_rate / unscaled_top_seg_rate;
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}
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} else {
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// Due to various reasons, the well/top segment rate can be zero for this phase.
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// We can not scale this rate directly. The following approach is used to initialize the segment rates.
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double sumTw = 0;
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for (int perf = 0; perf < baseif_.numPerfs(); ++perf) {
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sumTw += baseif_.wellIndex()[perf];
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}
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// only handling this specific phase
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constexpr double num_single_phase = 1;
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std::vector<double> perforation_rates(num_single_phase * baseif_.numPerfs(), 0.0);
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const double perf_phaserate_scaled = ws.surface_rates[phase] / sumTw;
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for (int perf = 0; perf < baseif_.numPerfs(); ++perf) {
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perforation_rates[perf] = baseif_.wellIndex()[perf] * perf_phaserate_scaled;
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}
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std::vector<double> rates;
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WellState::calculateSegmentRates(segment_inlets,
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segment_perforations,
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perforation_rates,
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num_single_phase, 0, rates);
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for (int seg = 0; seg < numberOfSegments(); ++seg) {
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segment_rates[baseif_.numPhases() * seg + phase] = rates[seg];
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}
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}
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}
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}
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template <typename Scalar>
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void
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MultisegmentWellGeneric<Scalar>::
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scaleSegmentPressuresWithBhp(WellState& well_state) const
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{
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auto& ws = well_state.well(baseif_.indexOfWell());
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auto& segments = ws.segments;
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segments.scale_pressure(ws.bhp);
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}
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template<typename Scalar>
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const WellSegments&
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MultisegmentWellGeneric<Scalar>::
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segmentSet() const
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{
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return baseif_.wellEcl().getSegments();
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}
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template <typename Scalar>
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int
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MultisegmentWellGeneric<Scalar>::
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numberOfSegments() const
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{
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return segmentSet().size();
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}
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template <typename Scalar>
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WellSegments::CompPressureDrop
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MultisegmentWellGeneric<Scalar>::
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compPressureDrop() const
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{
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return segmentSet().compPressureDrop();
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}
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template<typename Scalar>
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int
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MultisegmentWellGeneric<Scalar>::
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segmentNumberToIndex(const int segment_number) const
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{
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return segmentSet().segmentNumberToIndex(segment_number);
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}
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template<typename Scalar>
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void
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MultisegmentWellGeneric<Scalar>::
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detectOscillations(const std::vector<double>& measure_history,
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const int it,
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bool& oscillate,
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bool& stagnate) const
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{
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if ( it < 2 ) {
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oscillate = false;
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stagnate = false;
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return;
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}
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stagnate = true;
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const double F0 = measure_history[it];
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const double F1 = measure_history[it - 1];
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const double F2 = measure_history[it - 2];
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const double d1 = std::abs((F0 - F2) / F0);
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const double d2 = std::abs((F0 - F1) / F0);
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const double oscillaton_rel_tol = 0.2;
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oscillate = (d1 < oscillaton_rel_tol) && (oscillaton_rel_tol < d2);
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const double stagnation_rel_tol = 1.e-2;
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stagnate = std::abs((F1 - F2) / F2) <= stagnation_rel_tol;
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}
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template<typename Scalar>
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bool
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MultisegmentWellGeneric<Scalar>::
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frictionalPressureLossConsidered() const
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{
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// HF- and HFA needs to consider frictional pressure loss
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return (segmentSet().compPressureDrop() != WellSegments::CompPressureDrop::H__);
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}
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template<typename Scalar>
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bool
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MultisegmentWellGeneric<Scalar>::
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accelerationalPressureLossConsidered() const
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{
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return (segmentSet().compPressureDrop() == WellSegments::CompPressureDrop::HFA);
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}
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template<class Scalar>
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double
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MultisegmentWellGeneric<Scalar>::getSegmentDp(const int seg,
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const double density,
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const std::vector<double>& seg_dp) const
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{
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const double segment_depth = this->segmentSet()[seg].depth();
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const int outlet_segment_index = this->segmentNumberToIndex(this->segmentSet()[seg].outletSegment());
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const double segment_depth_outlet = seg == 0 ? baseif_.refDepth() : this->segmentSet()[outlet_segment_index].depth();
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double dp = wellhelpers::computeHydrostaticCorrection(segment_depth_outlet, segment_depth,
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density, baseif_.gravity());
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// we add the hydrostatic correction from the outlet segment
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// in order to get the correction all the way to the bhp ref depth.
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if (seg > 0) {
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dp += seg_dp[outlet_segment_index];
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}
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return dp;
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}
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template class MultisegmentWellGeneric<double>;
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} // namespace Opm
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