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317 lines
14 KiB
C++
317 lines
14 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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Copyright 2016 - 2017 IRIS AS.
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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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#ifndef OPM_STANDARDWELL_HEADER_INCLUDED
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#define OPM_STANDARDWELL_HEADER_INCLUDED
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#include <opm/autodiff/WellInterface.hpp>
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#include <opm/autodiff/ISTLSolver.hpp>
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#include <opm/autodiff/RateConverter.hpp>
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namespace Opm
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{
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template<typename TypeTag>
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class StandardWell: public WellInterface<TypeTag>
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{
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public:
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typedef WellInterface<TypeTag> Base;
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// TODO: some functions working with AD variables handles only with values (double) without
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// dealing with derivatives. It can be beneficial to make functions can work with either AD or scalar value.
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// And also, it can also be beneficial to make these functions hanle different types of AD variables.
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using typename Base::Simulator;
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using typename Base::WellState;
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using typename Base::IntensiveQuantities;
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using typename Base::FluidSystem;
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using typename Base::MaterialLaw;
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using typename Base::ModelParameters;
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using typename Base::Indices;
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using typename Base::PolymerModule;
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using typename Base::RateConverterType;
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using Base::numEq;
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// the positions of the primary variables for StandardWell
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// there are three primary variables, the second and the third ones are F_w and F_g
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// the first one can be total rate (G_t) or bhp, based on the control
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static const bool gasoil = numEq == 2 && (Indices::compositionSwitchIdx >= 0);
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static const int XvarWell = 0;
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static const int WFrac = gasoil? -1000: 1;
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static const int GFrac = gasoil? 1: 2;
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static const int SFrac = 3;
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using typename Base::Scalar;
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using typename Base::ConvergenceReport;
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using Base::has_solvent;
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using Base::has_polymer;
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using Base::name;
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using Base::Water;
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using Base::Oil;
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using Base::Gas;
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// TODO: with flow_ebos，for a 2P deck, // TODO: for the 2p deck, numEq will be 3, a dummy phase is already added from the reservoir side.
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// it will cause problem here without processing the dummy phase.
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static const int numWellEq = GET_PROP_VALUE(TypeTag, EnablePolymer)? numEq-1 : numEq; // number of wellEq is only numEq - 1 for polymer
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using typename Base::Mat;
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using typename Base::BVector;
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using typename Base::Eval;
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// sparsity pattern for the matrices
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//[A C^T [x = [ res
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// B D ] x_well] res_well]
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// the vector type for the res_well and x_well
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typedef Dune::FieldVector<Scalar, numWellEq> VectorBlockWellType;
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typedef Dune::BlockVector<VectorBlockWellType> BVectorWell;
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#if DUNE_VERSION_NEWER_REV(DUNE_ISTL, 2 , 5, 1)
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// 3x3 matrix block inversion was unstable from at least 2.3 until and
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// including 2.5.0
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// the matrix type for the diagonal matrix D
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typedef Dune::FieldMatrix<Scalar, numWellEq, numWellEq > DiagMatrixBlockWellType;
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#else
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// the matrix type for the diagonal matrix D
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typedef Dune::MatrixBlock<Scalar, numWellEq, numWellEq > DiagMatrixBlockWellType;
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#endif
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typedef Dune::BCRSMatrix <DiagMatrixBlockWellType> DiagMatWell;
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// the matrix type for the non-diagonal matrix B and C^T
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typedef Dune::FieldMatrix<Scalar, numWellEq, numEq> OffDiagMatrixBlockWellType;
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typedef Dune::BCRSMatrix<OffDiagMatrixBlockWellType> OffDiagMatWell;
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typedef DenseAd::Evaluation<double, /*size=*/numEq + numWellEq> EvalWell;
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using Base::contiSolventEqIdx;
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using Base::contiPolymerEqIdx;
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StandardWell(const Well* well, const int time_step, const Wells* wells,
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const ModelParameters& param,
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const RateConverterType& rate_converter,
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const int pvtRegionIdx,
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const int num_components);
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virtual void init(const PhaseUsage* phase_usage_arg,
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const std::vector<double>& depth_arg,
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const double gravity_arg,
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const int num_cells);
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virtual void initPrimaryVariablesEvaluation() const;
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virtual void assembleWellEq(Simulator& ebosSimulator,
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const double dt,
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WellState& well_state,
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bool only_wells);
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/// updating the well state based the control mode specified with current
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// TODO: later will check wheter we need current
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virtual void updateWellStateWithTarget(WellState& well_state) const;
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/// check whether the well equations get converged for this well
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virtual ConvergenceReport getWellConvergence(const std::vector<double>& B_avg) const;
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/// Ax = Ax - C D^-1 B x
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virtual void apply(const BVector& x, BVector& Ax) const;
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/// r = r - C D^-1 Rw
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virtual void apply(BVector& r) const;
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/// using the solution x to recover the solution xw for wells and applying
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/// xw to update Well State
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virtual void recoverWellSolutionAndUpdateWellState(const BVector& x,
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WellState& well_state) const;
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/// computing the well potentials for group control
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virtual void computeWellPotentials(const Simulator& ebosSimulator,
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const WellState& well_state,
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std::vector<double>& well_potentials) /* const */;
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virtual void updatePrimaryVariables(const WellState& well_state) const;
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virtual void solveEqAndUpdateWellState(WellState& well_state);
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virtual void calculateExplicitQuantities(const Simulator& ebosSimulator,
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const WellState& well_state); // should be const?
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protected:
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// protected functions from the Base class
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using Base::getAllowCrossFlow;
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using Base::phaseUsage;
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using Base::flowPhaseToEbosCompIdx;
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using Base::ebosCompIdxToFlowCompIdx;
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using Base::wsolvent;
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using Base::wpolymer;
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using Base::wellHasTHPConstraints;
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using Base::mostStrictBhpFromBhpLimits;
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using Base::scalingFactor;
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// protected member variables from the Base class
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using Base::vfp_properties_;
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using Base::gravity_;
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using Base::param_;
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using Base::well_efficiency_factor_;
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using Base::first_perf_;
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using Base::ref_depth_;
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using Base::perf_depth_;
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using Base::well_cells_;
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using Base::number_of_perforations_;
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using Base::number_of_phases_;
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using Base::saturation_table_number_;
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using Base::comp_frac_;
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using Base::well_index_;
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using Base::index_of_well_;
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using Base::well_controls_;
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using Base::well_type_;
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using Base::num_components_;
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using Base::perf_rep_radius_;
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using Base::perf_length_;
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using Base::bore_diameters_;
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// densities of the fluid in each perforation
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std::vector<double> perf_densities_;
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// pressure drop between different perforations
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std::vector<double> perf_pressure_diffs_;
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// residuals of the well equations
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BVectorWell resWell_;
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// two off-diagonal matrices
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OffDiagMatWell duneB_;
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OffDiagMatWell duneC_;
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// diagonal matrix for the well
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DiagMatWell invDuneD_;
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// several vector used in the matrix calculation
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mutable BVectorWell Bx_;
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mutable BVectorWell invDrw_;
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// the values for the primary varibles
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// based on different solutioin strategies, the wells can have different primary variables
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mutable std::vector<double> primary_variables_;
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// the Evaluation for the well primary variables, which contain derivativles and are used in AD calculation
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mutable std::vector<EvalWell> primary_variables_evaluation_;
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// the saturations in the well bore under surface conditions at the beginning of the time step
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std::vector<double> F0_;
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// TODO: this function should be moved to the base class.
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// while it faces chanllenges for MSWell later, since the calculation of bhp
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// based on THP is never implemented for MSWell yet.
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EvalWell getBhp() const;
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// TODO: it is also possible to be moved to the base class.
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EvalWell getQs(const int comp_idx) const;
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EvalWell wellVolumeFractionScaled(const int phase) const;
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EvalWell wellVolumeFraction(const unsigned compIdx) const;
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EvalWell wellSurfaceVolumeFraction(const int phase) const;
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EvalWell extendEval(const Eval& in) const;
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bool crossFlowAllowed(const Simulator& ebosSimulator) const;
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// xw = inv(D)*(rw - C*x)
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void recoverSolutionWell(const BVector& x, BVectorWell& xw) const;
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// updating the well_state based on well solution dwells
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void updateWellState(const BVectorWell& dwells,
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WellState& well_state) const;
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// calculate the properties for the well connections
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// to calulate the pressure difference between well connections.
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void computePropertiesForWellConnectionPressures(const Simulator& ebosSimulator,
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const WellState& well_state,
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std::vector<double>& b_perf,
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std::vector<double>& rsmax_perf,
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std::vector<double>& rvmax_perf,
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std::vector<double>& surf_dens_perf) const;
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// TODO: not total sure whether it is a good idea to put this function here
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// the major reason to put here is to avoid the usage of Wells struct
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void computeConnectionDensities(const std::vector<double>& perfComponentRates,
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const std::vector<double>& b_perf,
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const std::vector<double>& rsmax_perf,
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const std::vector<double>& rvmax_perf,
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const std::vector<double>& surf_dens_perf);
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void computeConnectionPressureDelta();
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void computeWellConnectionDensitesPressures(const WellState& well_state,
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const std::vector<double>& b_perf,
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const std::vector<double>& rsmax_perf,
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const std::vector<double>& rvmax_perf,
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const std::vector<double>& surf_dens_perf);
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// computing the accumulation term for later use in well mass equations
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void computeAccumWell();
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void computeWellConnectionPressures(const Simulator& ebosSimulator,
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const WellState& well_state);
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// TODO: to check whether all the paramters are required
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void computePerfRate(const IntensiveQuantities& intQuants,
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const std::vector<EvalWell>& mob_perfcells_dense,
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const double Tw, const EvalWell& bhp, const double& cdp,
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const bool& allow_cf, std::vector<EvalWell>& cq_s,
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double& perf_dis_gas_rate, double& perf_vap_oil_rate) const;
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// TODO: maybe we should provide a light version of computePerfRate, which does not include the
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// calculation of the derivatives
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void computeWellRatesWithBhp(const Simulator& ebosSimulator,
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const EvalWell& bhp,
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std::vector<double>& well_flux) const;
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std::vector<double> computeWellPotentialWithTHP(const Simulator& ebosSimulator,
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const double initial_bhp, // bhp from BHP constraints
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const std::vector<double>& initial_potential) const;
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template <class ValueType>
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ValueType calculateBhpFromThp(const std::vector<ValueType>& rates, const int control_index) const;
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double calculateThpFromBhp(const std::vector<double>& rates, const int control_index, const double bhp) const;
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// get the mobility for specific perforation
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void getMobility(const Simulator& ebosSimulator,
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const int perf,
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std::vector<EvalWell>& mob) const;
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void updateWaterMobilityWithPolymer(const Simulator& ebos_simulator,
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const int perf,
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std::vector<EvalWell>& mob_water) const;
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};
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}
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#include "StandardWell_impl.hpp"
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#endif // OPM_STANDARDWELL_HEADER_INCLUDED
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