void restoreOPM_XWELKeyword(const std::string& restart_filename, int reportstep, bool unified, WellState& wellstate)
{
const char * keyword = "OPM_XWEL";
const char* filename = restart_filename.c_str();
ecl_file_type* file_type = ecl_file_open(filename, 0);
if (file_type != NULL) {
bool block_selected = unified ? ecl_file_select_rstblock_report_step(file_type , reportstep) : true;
if (block_selected) {
ecl_kw_type* xwel = ecl_file_iget_named_kw(file_type , keyword, 0);
const double* xwel_data = ecl_kw_get_double_ptr(xwel);
std::copy_n(xwel_data + wellstate.getRestartTemperatureOffset(), wellstate.temperature().size(), wellstate.temperature().begin());
std::copy_n(xwel_data + wellstate.getRestartBhpOffset(), wellstate.bhp().size(), wellstate.bhp().begin());
std::copy_n(xwel_data + wellstate.getRestartPerfPressOffset(), wellstate.perfPress().size(), wellstate.perfPress().begin());
std::copy_n(xwel_data + wellstate.getRestartPerfRatesOffset(), wellstate.perfRates().size(), wellstate.perfRates().begin());
std::copy_n(xwel_data + wellstate.getRestartWellRatesOffset(), wellstate.wellRates().size(), wellstate.wellRates().begin());
} else {
std::string error_str = "Restart file " + restart_filename + " does not contain data for report step " + std::to_string(reportstep) + "!\n";
throw std::runtime_error(error_str);
}
ecl_file_close(file_type);
} else {
std::string error_str = "Restart file " + restart_filename + " not found!\n";
throw std::runtime_error(error_str);
}
}
// Solve with no rock compressibility (linear eqn).
void IncompTpfa::solveIncomp(const double dt,
SimulatorState& state,
WellState& well_state)
{
// Set up properties.
computePerSolveDynamicData(dt, state, well_state);
// Assemble.
UnstructuredGrid* gg = const_cast<UnstructuredGrid*>(&grid_);
int ok = ifs_tpfa_assemble(gg, &forces_, &trans_[0], &gpress_omegaweighted_[0], h_);
if (!ok) {
OPM_THROW(std::runtime_error, "Failed assembling pressure system.");
}
// Solve.
linsolver_.solve(h_->A, h_->b, h_->x);
// Obtain solution.
assert(int(state.pressure().size()) == grid_.number_of_cells);
assert(int(state.faceflux().size()) == grid_.number_of_faces);
ifs_tpfa_solution soln = { NULL, NULL, NULL, NULL };
soln.cell_press = &state.pressure()[0];
soln.face_flux = &state.faceflux()[0];
if (wells_ != NULL) {
assert(int(well_state.bhp().size()) == wells_->number_of_wells);
assert(int(well_state.perfRates().size()) == wells_->well_connpos[ wells_->number_of_wells ]);
soln.well_flux = &well_state.perfRates()[0];
soln.well_press = &well_state.bhp()[0];
}
ifs_tpfa_press_flux(gg, &forces_, &trans_[0], h_, &soln);
}
void SimulatorBase<Implementation>::computeWellPotentials(const Wells* wells,
const BlackoilState& x,
const WellState& xw,
std::vector<double>& well_potentials)
{
const int nw = wells->number_of_wells;
const int np = wells->number_of_phases;
well_potentials.clear();
well_potentials.resize(nw*np,0.0);
for (int w = 0; w < nw; ++w) {
for (int perf = wells->well_connpos[w]; perf < wells->well_connpos[w + 1]; ++perf) {
const double well_cell_pressure = x.pressure()[wells->well_cells[perf]];
const double drawdown_used = well_cell_pressure - xw.perfPress()[perf];
const WellControls* ctrl = wells->ctrls[w];
const int nwc = well_controls_get_num(ctrl);
//Loop over all controls until we find a BHP control
//that specifies what we need...
double bhp = 0.0;
for (int ctrl_index=0; ctrl_index < nwc; ++ctrl_index) {
if (well_controls_iget_type(ctrl, ctrl_index) == BHP) {
bhp = well_controls_iget_target(ctrl, ctrl_index);
}
// TODO: do something for thp;
}
// Calculate the pressure difference in the well perforation
const double dp = xw.perfPress()[perf] - xw.bhp()[w];
const double drawdown_maximum = well_cell_pressure - (bhp + dp);
for (int phase = 0; phase < np; ++phase) {
well_potentials[w*np + phase] += (drawdown_maximum / drawdown_used * xw.perfPhaseRates()[perf*np + phase]);
}
}
}
}
void
BlackoilMultiSegmentModel<Grid>::
prepareStep(const SimulatorTimerInterface& timer,
const ReservoirState& reservoir_state,
const WellState& well_state)
{
const double dt = timer.currentStepLength();
pvdt_ = geo_.poreVolume() / dt;
if (active_[Gas]) {
updatePrimalVariableFromState(reservoir_state);
}
const int nw = wellsMultiSegment().size();
if ( !msWellOps().has_multisegment_wells ) {
wellModel().segVDt() = V::Zero(nw);
return;
}
const int nseg_total = well_state.numSegments();
std::vector<double> segment_volume;
segment_volume.reserve(nseg_total);
for (int w = 0; w < nw; ++w) {
WellMultiSegmentConstPtr well = wellsMultiSegment()[w];
const std::vector<double>& segment_volume_well = well->segmentVolume();
segment_volume.insert(segment_volume.end(), segment_volume_well.begin(), segment_volume_well.end());
}
assert(int(segment_volume.size()) == nseg_total);
wellModel().segVDt() = Eigen::Map<V>(segment_volume.data(), nseg_total) / dt;
}
void
BlackoilOutputWriter::
writeTimeStepSerial(const SimulatorTimerInterface& timer,
const SimulationDataContainer& state,
const WellState& wellState,
const data::Solution& simProps,
bool substep)
{
// Matlab output
if( matlabWriter_ ) {
matlabWriter_->writeTimeStep( timer, state, wellState, substep );
}
// ECL output
if ( eclWriter_ )
{
const auto& initConfig = eclipseState_.getInitConfig();
if (initConfig.restartRequested() && ((initConfig.getRestartStep()) == (timer.currentStepNum()))) {
std::cout << "Skipping restart write in start of step " << timer.currentStepNum() << std::endl;
} else {
data::Solution combined_sol = simToSolution(state, phaseUsage_); // Get "normal" data (SWAT, PRESSURE, ...)
combined_sol.insert(simProps.begin(), simProps.end()); // ... insert "extra" data (KR, VISC, ...)
eclWriter_->writeTimeStep(timer.reportStepNum(),
substep,
timer.simulationTimeElapsed(),
combined_sol,
wellState.report(phaseUsage_));
}
}
// write backup file
if( backupfile_.is_open() )
{
int reportStep = timer.reportStepNum();
int currentTimeStep = timer.currentStepNum();
if( (reportStep == currentTimeStep || // true for SimulatorTimer
currentTimeStep == 0 || // true for AdaptiveSimulatorTimer at reportStep
timer.done() ) // true for AdaptiveSimulatorTimer at reportStep
&& lastBackupReportStep_ != reportStep ) // only backup report step once
{
// store report step
lastBackupReportStep_ = reportStep;
// write resport step number
backupfile_.write( (const char *) &reportStep, sizeof(int) );
try {
backupfile_ << state;
const WellStateFullyImplicitBlackoil& boWellState = static_cast< const WellStateFullyImplicitBlackoil& > (wellState);
backupfile_ << boWellState;
}
catch ( const std::bad_cast& e )
{
}
backupfile_ << std::flush;
}
} // end backup
}
/// Compute two-phase transport source terms from well terms.
/// Note: Unlike the incompressible version of this function,
/// this version computes surface volume injection rates,
/// production rates are still total reservoir volumes.
/// \param[in] props Fluid and rock properties.
/// \param[in] wells Wells data structure.
/// \param[in] well_state Well pressures and fluxes.
/// \param[out] transport_src The transport source terms. They are to be interpreted depending on sign:
/// (+) positive inflow of first (water) phase (surface volume),
/// (-) negative total outflow of both phases (reservoir volume).
void computeTransportSource(const BlackoilPropertiesInterface& props,
const Wells* wells,
const WellState& well_state,
std::vector<double>& transport_src)
{
int nc = props.numCells();
transport_src.clear();
transport_src.resize(nc, 0.0);
// Well contributions.
if (wells) {
const int nw = wells->number_of_wells;
const int np = wells->number_of_phases;
if (np != 2) {
OPM_THROW(std::runtime_error, "computeTransportSource() requires a 2 phase case.");
}
std::vector<double> A(np*np);
for (int w = 0; w < nw; ++w) {
const double* comp_frac = wells->comp_frac + np*w;
for (int perf = wells->well_connpos[w]; perf < wells->well_connpos[w + 1]; ++perf) {
const int perf_cell = wells->well_cells[perf];
double perf_rate = well_state.perfRates()[perf];
if (perf_rate > 0.0) {
// perf_rate is a total inflow reservoir rate, we want a surface water rate.
if (wells->type[w] != INJECTOR) {
std::cout << "**** Warning: crossflow in well "
<< w << " perf " << perf - wells->well_connpos[w]
<< " ignored. Reservoir rate was "
<< perf_rate/Opm::unit::day << " m^3/day." << std::endl;
perf_rate = 0.0;
} else {
assert(std::fabs(comp_frac[0] + comp_frac[1] - 1.0) < 1e-6);
perf_rate *= comp_frac[0]; // Water reservoir volume rate.
props.matrix(1, &well_state.perfPress()[perf], comp_frac, &perf_cell, &A[0], 0);
perf_rate *= A[0]; // Water surface volume rate.
}
}
transport_src[perf_cell] += perf_rate;
}
}
}
}
SimulatorReport
assemble(const ReservoirState& reservoir_state,
WellState& well_state,
const bool initial_assembly)
{
SimulatorReport report;
report += Base::assemble(reservoir_state, well_state, initial_assembly);
if (initial_assembly) {
}
// Compute pressure residual.
ADB pressure_residual = ADB::constant(V::Zero(residual_.material_balance_eq[0].size()));
for (int phase = 0; phase < numPhases(); ++phase) {
pressure_residual += residual_.material_balance_eq[phase] * scaling_[phase];
}
residual_.material_balance_eq[0] = pressure_residual; // HACK
// Compute total reservoir volume flux.
const int n = sd_.rq[0].mflux.size();
V flux = V::Zero(n);
for (int phase = 0; phase < numPhases(); ++phase) {
UpwindSelector<double> upwind(grid_, ops_, sd_.rq[phase].dh.value());
flux += sd_.rq[phase].mflux.value() / upwind.select(sd_.rq[phase].b.value());
}
// Storing the fluxes in the assemble() method is a bit of
// a hack, but alternatives either require a more
// significant redesign of the base class or are
// inefficient.
ReservoirState& s = const_cast<ReservoirState&>(reservoir_state);
s.faceflux().resize(n);
std::copy_n(flux.data(), n, s.faceflux().begin());
if (asImpl().localWellsActive()) {
const V& wflux = asImpl().wellModel().getStoredWellPerforationFluxes();
assert(int(well_state.perfRates().size()) == wflux.size());
std::copy_n(wflux.data(), wflux.size(), well_state.perfRates().begin());
}
return report;
}
/// Compute per-iteration dynamic properties.
void IncompTpfa::computePerIterationDynamicData(const double /*dt*/,
const SimulatorState& state,
const WellState& well_state)
{
// These are the variables that get computed by this function:
//
// std::vector<double> porevol_
// std::vector<double> rock_comp_
// std::vector<double> pressures_
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol_);
if (rock_comp_props_ && rock_comp_props_->isActive()) {
for (int cell = 0; cell < grid_.number_of_cells; ++cell) {
rock_comp_[cell] = rock_comp_props_->rockComp(state.pressure()[cell]);
}
}
if (wells_) {
std::copy(state.pressure().begin(), state.pressure().end(), pressures_.begin());
std::copy(well_state.bhp().begin(), well_state.bhp().end(), pressures_.begin() + grid_.number_of_cells);
}
}
/// Compute the output.
void IncompTpfa::computeResults(SimulatorState& state,
WellState& well_state) const
{
// Make sure h_ contains the direct-solution matrix
// and right hand side (not jacobian and residual).
// TODO: optimize by only adjusting b and diagonal of A.
UnstructuredGrid* gg = const_cast<UnstructuredGrid*>(&grid_);
ifs_tpfa_assemble(gg, &forces_, &trans_[0], &gpress_omegaweighted_[0], h_);
// Make sure h_->x contains the direct solution vector.
assert(int(state.pressure().size()) == grid_.number_of_cells);
assert(int(state.faceflux().size()) == grid_.number_of_faces);
std::copy(state.pressure().begin(), state.pressure().end(), h_->x);
std::copy(well_state.bhp().begin(), well_state.bhp().end(), h_->x + grid_.number_of_cells);
// Obtain solution.
ifs_tpfa_solution soln = { NULL, NULL, NULL, NULL };
soln.cell_press = &state.pressure()[0];
soln.face_flux = &state.faceflux()[0];
if (wells_ != NULL) {
assert(int(well_state.bhp().size()) == wells_->number_of_wells);
assert(int(well_state.perfRates().size()) == wells_->well_connpos[ wells_->number_of_wells ]);
soln.well_flux = &well_state.perfRates()[0];
soln.well_press = &well_state.bhp()[0];
}
ifs_tpfa_press_flux(gg, &forces_, &trans_[0], h_, &soln); // TODO: Check what parts of h_ are used here.
}
/// Compute the residual and Jacobian.
void CompressibleTpfa::assemble(const double dt,
const BlackoilState& state,
const WellState& well_state)
{
const double* cell_press = &state.pressure()[0];
const double* well_bhp = well_state.bhp().empty() ? NULL : &well_state.bhp()[0];
const double* z = &state.surfacevol()[0];
UnstructuredGrid* gg = const_cast<UnstructuredGrid*>(&grid_);
CompletionData completion_data;
completion_data.wdp = ! wellperf_wdp_.empty() ? &wellperf_wdp_[0] : 0;
completion_data.A = ! wellperf_A_.empty() ? &wellperf_A_[0] : 0;
completion_data.phasemob = ! wellperf_phasemob_.empty() ? &wellperf_phasemob_[0] : 0;
cfs_tpfa_res_wells wells_tmp;
wells_tmp.W = const_cast<Wells*>(wells_);
wells_tmp.data = &completion_data;
cfs_tpfa_res_forces forces;
forces.wells = &wells_tmp;
forces.src = NULL; // Check if it is legal to leave it as NULL.
compr_quantities_gen cq;
cq.nphases = props_.numPhases();
cq.Ac = &cell_A_[0];
cq.dAc = &cell_dA_[0];
cq.Af = &face_A_[0];
cq.phasemobf = &face_phasemob_[0];
cq.voldiscr = &cell_voldisc_[0];
int was_adjusted = 0;
if (! (rock_comp_props_ && rock_comp_props_->isActive())) {
was_adjusted =
cfs_tpfa_res_assemble(gg, dt, &forces, z, &cq, &trans_[0],
&face_gravcap_[0], cell_press, well_bhp,
&porevol_[0], h_);
} else {
was_adjusted =
cfs_tpfa_res_comprock_assemble(gg, dt, &forces, z, &cq, &trans_[0],
&face_gravcap_[0], cell_press, well_bhp,
&porevol_[0], &initial_porevol_[0],
&rock_comp_[0], h_);
}
singular_ = (was_adjusted == 1);
}
IterationReport
BlackoilMultiSegmentModel<Grid>::solveWellEq(const std::vector<ADB>& mob_perfcells,
const std::vector<ADB>& b_perfcells,
SolutionState& state,
WellState& well_state)
{
IterationReport iter_report = Base::solveWellEq(mob_perfcells, b_perfcells, state, well_state);
if (iter_report.converged) {
// We must now update the state.segp and state.segqs members,
// that the base version does not know about.
const int np = numPhases();
const int nseg_total =well_state.numSegments();
{
// We will set the segp primary variable to the new ones,
// but we do not change the derivatives here.
ADB::V new_segp = Eigen::Map<ADB::V>(well_state.segPress().data(), nseg_total);
// Avoiding the copy below would require a value setter method
// in AutoDiffBlock.
std::vector<ADB::M> old_segp_derivs = state.segp.derivative();
state.segp = ADB::function(std::move(new_segp), std::move(old_segp_derivs));
}
{
// Need to reshuffle well rates, from phase running fastest
// to wells running fastest.
// The transpose() below switches the ordering.
const DataBlock segrates = Eigen::Map<const DataBlock>(well_state.segPhaseRates().data(), nseg_total, np).transpose();
ADB::V new_segqs = Eigen::Map<const V>(segrates.data(), nseg_total * np);
std::vector<ADB::M> old_segqs_derivs = state.segqs.derivative();
state.segqs = ADB::function(std::move(new_segqs), std::move(old_segqs_derivs));
}
// This is also called by the base version, but since we have updated
// state.segp we must call it again.
asImpl().computeWellConnectionPressures(state, well_state);
}
return iter_report;
}
/// Compute per-iteration dynamic properties for wells.
void CompressibleTpfa::computeWellDynamicData(const double /*dt*/,
const BlackoilState& /*state*/,
const WellState& well_state)
{
// These are the variables that get computed by this function:
//
// std::vector<double> wellperf_A_;
// std::vector<double> wellperf_phasemob_;
const int np = props_.numPhases();
const int nw = (wells_ != 0) ? wells_->number_of_wells : 0;
const int nperf = (wells_ != 0) ? wells_->well_connpos[nw] : 0;
wellperf_A_.resize(nperf*np*np);
wellperf_phasemob_.resize(nperf*np);
// The A matrix is set equal to the perforation grid cells'
// matrix for producers, computed from bhp and injection
// component fractions from
// The mobilities are set equal to the perforation grid cells'
// mobilities for producers.
std::vector<double> mu(np);
for (int w = 0; w < nw; ++w) {
bool producer = (wells_->type[w] == PRODUCER);
const double* comp_frac = &wells_->comp_frac[np*w];
for (int j = wells_->well_connpos[w]; j < wells_->well_connpos[w+1]; ++j) {
const int c = wells_->well_cells[j];
double* wpA = &wellperf_A_[np*np*j];
double* wpM = &wellperf_phasemob_[np*j];
if (producer) {
const double* cA = &cell_A_[np*np*c];
std::copy(cA, cA + np*np, wpA);
const double* cM = &cell_phasemob_[np*c];
std::copy(cM, cM + np, wpM);
} else {
const double bhp = well_state.bhp()[w];
double perf_p = bhp + wellperf_wdp_[j];
// Hack warning: comp_frac is used as a component
// surface-volume variable in calls to matrix() and
// viscosity(), but as a saturation in the call to
// relperm(). This is probably ok as long as injectors
// only inject pure fluids.
props_.matrix(1, &perf_p, comp_frac, &c, wpA, NULL);
props_.viscosity(1, &perf_p, comp_frac, &c, &mu[0], NULL);
assert(std::fabs(std::accumulate(comp_frac, comp_frac + np, 0.0) - 1.0) < 1e-6);
props_.relperm (1, comp_frac, &c, wpM , NULL);
for (int phase = 0; phase < np; ++phase) {
wpM[phase] /= mu[phase];
}
}
}
}
}
void SimulatorBase<Implementation>::computeWellPotentials(const Wells* wells,
const WellState& xw,
std::vector<double>& well_potentials)
{
const int nw = wells->number_of_wells;
const int np = wells->number_of_phases;
well_potentials.clear();
well_potentials.resize(nw*np,0.0);
for (int w = 0; w < nw; ++w) {
for (int perf = wells->well_connpos[w]; perf < wells->well_connpos[w + 1]; ++perf) {
for (int phase = 0; phase < np; ++phase) {
well_potentials[w*np + phase] += xw.wellPotentials()[perf*np + phase];
}
}
}
}
/// Compute the output.
void CompressibleTpfa::computeResults(BlackoilState& state,
WellState& well_state) const
{
UnstructuredGrid* gg = const_cast<UnstructuredGrid*>(&grid_);
CompletionData completion_data;
completion_data.wdp = ! wellperf_wdp_.empty() ? const_cast<double*>(&wellperf_wdp_[0]) : 0;
completion_data.A = ! wellperf_A_.empty() ? const_cast<double*>(&wellperf_A_[0]) : 0;
completion_data.phasemob = ! wellperf_phasemob_.empty() ? const_cast<double*>(&wellperf_phasemob_[0]) : 0;
cfs_tpfa_res_wells wells_tmp;
wells_tmp.W = const_cast<Wells*>(wells_);
wells_tmp.data = &completion_data;
cfs_tpfa_res_forces forces;
forces.wells = &wells_tmp;
forces.src = NULL;
double* wpress = ! well_state.bhp ().empty() ? & well_state.bhp ()[0] : 0;
double* wflux = ! well_state.perfRates().empty() ? & well_state.perfRates()[0] : 0;
cfs_tpfa_res_flux(gg,
&forces,
props_.numPhases(),
&trans_[0],
&cell_phasemob_[0],
&face_phasemob_[0],
&face_gravcap_[0],
&state.pressure()[0],
wpress,
&state.faceflux()[0],
wflux);
cfs_tpfa_res_fpress(gg,
props_.numPhases(),
&htrans_[0],
&face_phasemob_[0],
&face_gravcap_[0],
h_,
&state.pressure()[0],
&state.faceflux()[0],
&state.facepressure()[0]);
// Compute well perforation pressures (not done by the C code).
if (wells_ != 0) {
const int nw = wells_->number_of_wells;
for (int w = 0; w < nw; ++w) {
for (int j = wells_->well_connpos[w]; j < wells_->well_connpos[w+1]; ++j) {
const double bhp = well_state.bhp()[w];
well_state.perfPress()[j] = bhp + wellperf_wdp_[j];
}
}
}
}
void SimulatorBase<Implementation>::computeRESV(const std::size_t step,
const Wells* wells,
const BlackoilState& x,
WellState& xw)
{
typedef SimFIBODetails::WellMap WellMap;
const std::vector<WellConstPtr>& w_ecl = eclipse_state_->getSchedule()->getWells(step);
const WellMap& wmap = SimFIBODetails::mapWells(w_ecl);
const std::vector<int>& resv_wells = SimFIBODetails::resvWells(wells, step, wmap);
const std::size_t number_resv_wells = resv_wells.size();
std::size_t global_number_resv_wells = number_resv_wells;
#if HAVE_MPI
if ( solver_.parallelInformation().type() == typeid(ParallelISTLInformation) )
{
const auto& info =
boost::any_cast<const ParallelISTLInformation&>(solver_.parallelInformation());
global_number_resv_wells = info.communicator().sum(global_number_resv_wells);
if ( global_number_resv_wells )
{
// At least one process has resv wells. Therefore rate converter needs
// to calculate averages over regions that might cross process
// borders. This needs to be done by all processes and therefore
// outside of the next if statement.
rateConverter_.defineState(x, boost::any_cast<const ParallelISTLInformation&>(solver_.parallelInformation()));
}
}
else
#endif
{
if ( global_number_resv_wells )
{
rateConverter_.defineState(x);
}
}
if (! resv_wells.empty()) {
const PhaseUsage& pu = props_.phaseUsage();
const std::vector<double>::size_type np = props_.numPhases();
std::vector<double> distr (np);
std::vector<double> hrates(np);
std::vector<double> prates(np);
for (std::vector<int>::const_iterator
rp = resv_wells.begin(), e = resv_wells.end();
rp != e; ++rp)
{
WellControls* ctrl = wells->ctrls[*rp];
const bool is_producer = wells->type[*rp] == PRODUCER;
// RESV control mode, all wells
{
const int rctrl = SimFIBODetails::resv_control(ctrl);
if (0 <= rctrl) {
const std::vector<double>::size_type off = (*rp) * np;
if (is_producer) {
// Convert to positive rates to avoid issues
// in coefficient calculations.
std::transform(xw.wellRates().begin() + (off + 0*np),
xw.wellRates().begin() + (off + 1*np),
prates.begin(), std::negate<double>());
} else {
std::copy(xw.wellRates().begin() + (off + 0*np),
xw.wellRates().begin() + (off + 1*np),
prates.begin());
}
const int fipreg = 0; // Hack. Ignore FIP regions.
rateConverter_.calcCoeff(prates, fipreg, distr);
well_controls_iset_distr(ctrl, rctrl, & distr[0]);
}
}
// RESV control, WCONHIST wells. A bit of duplicate
// work, regrettably.
if (is_producer && wells->name[*rp] != 0) {
WellMap::const_iterator i = wmap.find(wells->name[*rp]);
if (i != wmap.end()) {
WellConstPtr wp = i->second;
const WellProductionProperties& p =
wp->getProductionProperties(step);
if (! p.predictionMode) {
// History matching (WCONHIST/RESV)
SimFIBODetails::historyRates(pu, p, hrates);
const int fipreg = 0; // Hack. Ignore FIP regions.
rateConverter_.calcCoeff(hrates, fipreg, distr);
// WCONHIST/RESV target is sum of all
// observed phase rates translated to
// reservoir conditions. Recall sign
// convention: Negative for producers.
const double target =
- std::inner_product(distr.begin(), distr.end(),
hrates.begin(), 0.0);
well_controls_clear(ctrl);
well_controls_assert_number_of_phases(ctrl, int(np));
static const double invalid_alq = -std::numeric_limits<double>::max();
static const int invalid_vfp = -std::numeric_limits<int>::max();
const int ok_resv =
well_controls_add_new(RESERVOIR_RATE, target,
invalid_alq, invalid_vfp,
& distr[0], ctrl);
// For WCONHIST the BHP limit is set to 1 atm.
// or a value specified using WELTARG
double bhp_limit = (p.BHPLimit > 0) ? p.BHPLimit : unit::convert::from(1.0, unit::atm);
const int ok_bhp =
well_controls_add_new(BHP, bhp_limit,
invalid_alq, invalid_vfp,
NULL, ctrl);
if (ok_resv != 0 && ok_bhp != 0) {
xw.currentControls()[*rp] = 0;
well_controls_set_current(ctrl, 0);
}
}
}
}
}
}
if( wells )
{
for (int w = 0, nw = wells->number_of_wells; w < nw; ++w) {
WellControls* ctrl = wells->ctrls[w];
const bool is_producer = wells->type[w] == PRODUCER;
if (!is_producer && wells->name[w] != 0) {
WellMap::const_iterator i = wmap.find(wells->name[w]);
if (i != wmap.end()) {
WellConstPtr wp = i->second;
const WellInjectionProperties& injector = wp->getInjectionProperties(step);
if (!injector.predictionMode) {
//History matching WCONINJEH
static const double invalid_alq = -std::numeric_limits<double>::max();
static const int invalid_vfp = -std::numeric_limits<int>::max();
// For WCONINJEH the BHP limit is set to a large number
// or a value specified using WELTARG
double bhp_limit = (injector.BHPLimit > 0) ? injector.BHPLimit : std::numeric_limits<double>::max();
const int ok_bhp =
well_controls_add_new(BHP, bhp_limit,
invalid_alq, invalid_vfp,
NULL, ctrl);
if (!ok_bhp) {
OPM_THROW(std::runtime_error, "Failed to add well control.");
}
}
}
}
}
}
}
void
StandardWellsSolvent::
computePropertiesForWellConnectionPressures(const SolutionState& state,
const WellState& xw,
std::vector<double>& b_perf,
std::vector<double>& rsmax_perf,
std::vector<double>& rvmax_perf,
std::vector<double>& surf_dens_perf)
{
// 1. Compute properties required by computeConnectionPressureDelta().
// Note that some of the complexity of this part is due to the function
// taking std::vector<double> arguments, and not Eigen objects.
const int nperf = wells().well_connpos[wells().number_of_wells];
const int nw = wells().number_of_wells;
// Compute the average pressure in each well block
const Vector perf_press = Eigen::Map<const V>(xw.perfPress().data(), nperf);
Vector avg_press = perf_press*0;
for (int w = 0; w < nw; ++w) {
for (int perf = wells().well_connpos[w]; perf < wells().well_connpos[w+1]; ++perf) {
const double p_above = perf == wells().well_connpos[w] ? state.bhp.value()[w] : perf_press[perf - 1];
const double p_avg = (perf_press[perf] + p_above)/2;
avg_press[perf] = p_avg;
}
}
const std::vector<int>& well_cells = wellOps().well_cells;
// Use cell values for the temperature as the wells don't knows its temperature yet.
const ADB perf_temp = subset(state.temperature, well_cells);
// Compute b, rsmax, rvmax values for perforations.
// Evaluate the properties using average well block pressures
// and cell values for rs, rv, phase condition and temperature.
const ADB avg_press_ad = ADB::constant(avg_press);
std::vector<PhasePresence> perf_cond(nperf);
for (int perf = 0; perf < nperf; ++perf) {
perf_cond[perf] = (*phase_condition_)[well_cells[perf]];
}
const PhaseUsage& pu = fluid_->phaseUsage();
DataBlock b(nperf, pu.num_phases);
const Vector bw = fluid_->bWat(avg_press_ad, perf_temp, well_cells).value();
if (pu.phase_used[BlackoilPhases::Aqua]) {
b.col(pu.phase_pos[BlackoilPhases::Aqua]) = bw;
}
assert((*active_)[Oil]);
assert((*active_)[Gas]);
const ADB perf_rv = subset(state.rv, well_cells);
const ADB perf_rs = subset(state.rs, well_cells);
const Vector perf_so = subset(state.saturation[pu.phase_pos[Oil]].value(), well_cells);
if (pu.phase_used[BlackoilPhases::Liquid]) {
const Vector bo = fluid_->bOil(avg_press_ad, perf_temp, perf_rs, perf_cond, well_cells).value();
//const V bo_eff = subset(rq_[pu.phase_pos[Oil] ].b , well_cells).value();
b.col(pu.phase_pos[BlackoilPhases::Liquid]) = bo;
// const Vector rssat = fluidRsSat(avg_press, perf_so, well_cells);
const Vector rssat = fluid_->rsSat(ADB::constant(avg_press), ADB::constant(perf_so), well_cells).value();
rsmax_perf.assign(rssat.data(), rssat.data() + nperf);
} else {
rsmax_perf.assign(0.0, nperf);
}
V surf_dens_copy = superset(fluid_->surfaceDensity(0, well_cells), Span(nperf, pu.num_phases, 0), nperf*pu.num_phases);
for (int phase = 1; phase < pu.num_phases; ++phase) {
if ( phase == pu.phase_pos[BlackoilPhases::Vapour]) {
continue; // the gas surface density is added after the solvent is accounted for.
}
surf_dens_copy += superset(fluid_->surfaceDensity(phase, well_cells), Span(nperf, pu.num_phases, phase), nperf*pu.num_phases);
}
if (pu.phase_used[BlackoilPhases::Vapour]) {
// Unclear wether the effective or the pure values should be used for the wells
// the current usage of unmodified properties values gives best match.
//V bg_eff = subset(rq_[pu.phase_pos[Gas]].b,well_cells).value();
Vector bg = fluid_->bGas(avg_press_ad, perf_temp, perf_rv, perf_cond, well_cells).value();
Vector rhog = fluid_->surfaceDensity(pu.phase_pos[BlackoilPhases::Vapour], well_cells);
// to handle solvent related
if (has_solvent_) {
const Vector bs = solvent_props_->bSolvent(avg_press_ad,well_cells).value();
//const V bs_eff = subset(rq_[solvent_pos_].b,well_cells).value();
// number of cells
const int nc = state.pressure.size();
const ADB zero = ADB::constant(Vector::Zero(nc));
const ADB& ss = state.solvent_saturation;
const ADB& sg = ((*active_)[ Gas ]
? state.saturation[ pu.phase_pos[ Gas ] ]
: zero);
Selector<double> zero_selector(ss.value() + sg.value(), Selector<double>::Zero);
Vector F_solvent = subset(zero_selector.select(ss, ss / (ss + sg)),well_cells).value();
Vector injectedSolventFraction = Eigen::Map<const Vector>(&xw.solventFraction()[0], nperf);
Vector isProducer = Vector::Zero(nperf);
Vector ones = Vector::Constant(nperf,1.0);
for (int w = 0; w < nw; ++w) {
if(wells().type[w] == PRODUCER) {
for (int perf = wells().well_connpos[w]; perf < wells().well_connpos[w+1]; ++perf) {
isProducer[perf] = 1;
}
}
}
F_solvent = isProducer * F_solvent + (ones - isProducer) * injectedSolventFraction;
bg = bg * (ones - F_solvent);
bg = bg + F_solvent * bs;
const Vector& rhos = solvent_props_->solventSurfaceDensity(well_cells);
rhog = ( (ones - F_solvent) * rhog ) + (F_solvent * rhos);
}
b.col(pu.phase_pos[BlackoilPhases::Vapour]) = bg;
surf_dens_copy += superset(rhog, Span(nperf, pu.num_phases, pu.phase_pos[BlackoilPhases::Vapour]), nperf*pu.num_phases);
// const Vector rvsat = fluidRvSat(avg_press, perf_so, well_cells);
const Vector rvsat = fluid_->rvSat(ADB::constant(avg_press), ADB::constant(perf_so), well_cells).value();
rvmax_perf.assign(rvsat.data(), rvsat.data() + nperf);
} else {
rvmax_perf.assign(0.0, nperf);
}
// b and surf_dens_perf is row major, so can just copy data.
b_perf.assign(b.data(), b.data() + nperf * pu.num_phases);
surf_dens_perf.assign(surf_dens_copy.data(), surf_dens_copy.data() + nperf * pu.num_phases);
}
/// Solve pressure equation, by Newton iterations.
void CompressibleTpfa::solve(const double dt,
BlackoilState& state,
WellState& well_state)
{
const int nc = grid_.number_of_cells;
const int nw = (wells_ != 0) ? wells_->number_of_wells : 0;
// Set up dynamic data.
computePerSolveDynamicData(dt, state, well_state);
computePerIterationDynamicData(dt, state, well_state);
// Assemble J and F.
assemble(dt, state, well_state);
double inc_norm = 0.0;
int iter = 0;
double res_norm = residualNorm();
std::cout << "\nIteration Residual Change in p\n"
<< std::setw(9) << iter
<< std::setw(18) << res_norm
<< std::setw(18) << '*' << std::endl;
while ((iter < maxiter_) && (res_norm > residual_tol_)) {
// Solve for increment in Newton method:
// incr = x_{n+1} - x_{n} = -J^{-1}F
// (J is Jacobian matrix, F is residual)
solveIncrement();
++iter;
// Update pressure vars with increment.
for (int c = 0; c < nc; ++c) {
state.pressure()[c] += pressure_increment_[c];
}
for (int w = 0; w < nw; ++w) {
well_state.bhp()[w] += pressure_increment_[nc + w];
}
// Stop iterating if increment is small.
inc_norm = incrementNorm();
if (inc_norm <= change_tol_) {
std::cout << std::setw(9) << iter
<< std::setw(18) << '*'
<< std::setw(18) << inc_norm << std::endl;
break;
}
// Set up dynamic data.
computePerIterationDynamicData(dt, state, well_state);
// Assemble J and F.
assemble(dt, state, well_state);
// Update residual norm.
res_norm = residualNorm();
std::cout << std::setw(9) << iter
<< std::setw(18) << res_norm
<< std::setw(18) << inc_norm << std::endl;
}
if ((iter == maxiter_) && (res_norm > residual_tol_) && (inc_norm > change_tol_)) {
OPM_THROW(std::runtime_error, "CompressibleTpfa::solve() failed to converge in " << maxiter_ << " iterations.");
}
std::cout << "Solved pressure in " << iter << " iterations." << std::endl;
// Compute fluxes and face pressures.
computeResults(state, well_state);
}
void SimulatorBase<Implementation>::computeRESV(const std::size_t step,
const Wells* wells,
const BlackoilState& x,
WellState& xw)
{
typedef SimFIBODetails::WellMap WellMap;
const std::vector<WellConstPtr>& w_ecl = eclipse_state_->getSchedule()->getWells(step);
const WellMap& wmap = SimFIBODetails::mapWells(w_ecl);
const std::vector<int>& resv_wells = SimFIBODetails::resvWells(wells, step, wmap);
if (! resv_wells.empty()) {
const PhaseUsage& pu = props_.phaseUsage();
const std::vector<double>::size_type np = props_.numPhases();
rateConverter_.defineState(x);
std::vector<double> distr (np);
std::vector<double> hrates(np);
std::vector<double> prates(np);
for (std::vector<int>::const_iterator
rp = resv_wells.begin(), e = resv_wells.end();
rp != e; ++rp)
{
WellControls* ctrl = wells->ctrls[*rp];
const bool is_producer = wells->type[*rp] == PRODUCER;
// RESV control mode, all wells
{
const int rctrl = SimFIBODetails::resv_control(ctrl);
if (0 <= rctrl) {
const std::vector<double>::size_type off = (*rp) * np;
if (is_producer) {
// Convert to positive rates to avoid issues
// in coefficient calculations.
std::transform(xw.wellRates().begin() + (off + 0*np),
xw.wellRates().begin() + (off + 1*np),
prates.begin(), std::negate<double>());
} else {
std::copy(xw.wellRates().begin() + (off + 0*np),
xw.wellRates().begin() + (off + 1*np),
prates.begin());
}
const int fipreg = 0; // Hack. Ignore FIP regions.
rateConverter_.calcCoeff(prates, fipreg, distr);
well_controls_iset_distr(ctrl, rctrl, & distr[0]);
}
}
// RESV control, WCONHIST wells. A bit of duplicate
// work, regrettably.
if (is_producer && wells->name[*rp] != 0) {
WellMap::const_iterator i = wmap.find(wells->name[*rp]);
if (i != wmap.end()) {
WellConstPtr wp = i->second;
const WellProductionProperties& p =
wp->getProductionProperties(step);
if (! p.predictionMode) {
// History matching (WCONHIST/RESV)
SimFIBODetails::historyRates(pu, p, hrates);
const int fipreg = 0; // Hack. Ignore FIP regions.
rateConverter_.calcCoeff(hrates, fipreg, distr);
// WCONHIST/RESV target is sum of all
// observed phase rates translated to
// reservoir conditions. Recall sign
// convention: Negative for producers.
const double target =
- std::inner_product(distr.begin(), distr.end(),
hrates.begin(), 0.0);
well_controls_clear(ctrl);
well_controls_assert_number_of_phases(ctrl, int(np));
const int ok_resv =
well_controls_add_new(RESERVOIR_RATE, target,
& distr[0], ctrl);
// For WCONHIST/RESV the BHP limit is set to 1 atm.
// TODO: Make it possible to modify the BHP limit using
// the WELTARG keyword
const int ok_bhp =
well_controls_add_new(BHP, unit::convert::from(1.0, unit::atm),
NULL, ctrl);
if (ok_resv != 0 && ok_bhp != 0) {
xw.currentControls()[*rp] = 0;
well_controls_set_current(ctrl, 0);
}
}
}
}
}
}
}
SimulatorReport SimulatorCompressiblePolymer::Impl::run(SimulatorTimer& timer,
PolymerBlackoilState& state,
WellState& well_state)
{
std::vector<double> transport_src(grid_.number_of_cells);
std::vector<double> polymer_inflow_c(grid_.number_of_cells);
// Initialisation.
std::vector<double> initial_pressure;
std::vector<double> porevol;
if (rock_comp_props_ && rock_comp_props_->isActive()) {
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
} else {
computePorevolume(grid_, props_.porosity(), porevol);
}
const double tot_porevol_init = std::accumulate(porevol.begin(), porevol.end(), 0.0);
std::vector<double> initial_porevol = porevol;
// Main simulation loop.
Opm::time::StopWatch pressure_timer;
double ptime = 0.0;
Opm::time::StopWatch transport_timer;
double ttime = 0.0;
Opm::time::StopWatch total_timer;
total_timer.start();
double init_surfvol[2] = { 0.0 };
double inplace_surfvol[2] = { 0.0 };
double polymass = computePolymerMass(porevol, state.saturation(), state.getCellData( state.CONCENTRATION ), poly_props_.deadPoreVol());
double polymass_adsorbed = computePolymerAdsorbed(grid_, props_, poly_props_, state, rock_comp_props_);
double init_polymass = polymass + polymass_adsorbed;
double tot_injected[2] = { 0.0 };
double tot_produced[2] = { 0.0 };
double tot_polyinj = 0.0;
double tot_polyprod = 0.0;
Opm::computeSaturatedVol(porevol, state.surfacevol(), init_surfvol);
Opm::Watercut watercut;
watercut.push(0.0, 0.0, 0.0);
Opm::WellReport wellreport;
std::vector<double> fractional_flows;
std::vector<double> well_resflows_phase;
if (wells_) {
well_resflows_phase.resize((wells_->number_of_phases)*(wells_->number_of_wells), 0.0);
wellreport.push(props_, *wells_, state.pressure(), state.surfacevol(),
state.saturation(), 0.0, well_state.bhp(), well_state.perfRates());
}
// Report timestep and (optionally) write state to disk.
timer.report(std::cout);
if (output_ && (timer.currentStepNum() % output_interval_ == 0)) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
}
initial_pressure = state.pressure();
// Solve pressure equation.
if (check_well_controls_) {
computeFractionalFlow(props_, poly_props_, allcells_,
state.pressure(), state.temperature(), state.surfacevol(), state.saturation(),
state.getCellData( state.CONCENTRATION ), state.getCellData( state.CMAX ) ,
fractional_flows);
wells_manager_.applyExplicitReinjectionControls(well_resflows_phase, well_resflows_phase);
}
bool well_control_passed = !check_well_controls_;
int well_control_iteration = 0;
do {
// Run solver
pressure_timer.start();
psolver_.solve(timer.currentStepLength(), state, well_state);
// Renormalize pressure if both fluids and rock are
// incompressible, and there are no pressure
// conditions (bcs or wells). It is deemed sufficient
// for now to renormalize using geometric volume
// instead of pore volume.
if (psolver_.singularPressure()) {
// Compute average pressures of previous and last
// step, and total volume.
double av_prev_press = 0.0;
double av_press = 0.0;
double tot_vol = 0.0;
const int num_cells = grid_.number_of_cells;
for (int cell = 0; cell < num_cells; ++cell) {
av_prev_press += initial_pressure[cell]*grid_.cell_volumes[cell];
av_press += state.pressure()[cell]*grid_.cell_volumes[cell];
tot_vol += grid_.cell_volumes[cell];
}
// Renormalization constant
const double ren_const = (av_prev_press - av_press)/tot_vol;
for (int cell = 0; cell < num_cells; ++cell) {
state.pressure()[cell] += ren_const;
}
const int num_wells = (wells_ == NULL) ? 0 : wells_->number_of_wells;
for (int well = 0; well < num_wells; ++well) {
well_state.bhp()[well] += ren_const;
}
}
// Stop timer and report
pressure_timer.stop();
double pt = pressure_timer.secsSinceStart();
std::cout << "Pressure solver took: " << pt << " seconds." << std::endl;
ptime += pt;
// Optionally, check if well controls are satisfied.
if (check_well_controls_) {
Opm::computePhaseFlowRatesPerWell(*wells_,
well_state.perfRates(),
fractional_flows,
well_resflows_phase);
std::cout << "Checking well conditions." << std::endl;
// For testing we set surface := reservoir
well_control_passed = wells_manager_.conditionsMet(well_state.bhp(), well_resflows_phase, well_resflows_phase);
++well_control_iteration;
if (!well_control_passed && well_control_iteration > max_well_control_iterations_) {
OPM_THROW(std::runtime_error, "Could not satisfy well conditions in " << max_well_control_iterations_ << " tries.");
}
if (!well_control_passed) {
std::cout << "Well controls not passed, solving again." << std::endl;
} else {
std::cout << "Well conditions met." << std::endl;
}
}
} while (!well_control_passed);
// Update pore volumes if rock is compressible.
if (rock_comp_props_ && rock_comp_props_->isActive()) {
initial_porevol = porevol;
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
}
// Process transport sources (to include bdy terms and well flows).
Opm::computeTransportSource(props_, wells_, well_state, transport_src);
// Find inflow rate.
const double current_time = timer.simulationTimeElapsed();
double stepsize = timer.currentStepLength();
polymer_inflow_.getInflowValues(current_time, current_time + stepsize, polymer_inflow_c);
// Solve transport.
transport_timer.start();
if (num_transport_substeps_ != 1) {
stepsize /= double(num_transport_substeps_);
std::cout << "Making " << num_transport_substeps_ << " transport substeps." << std::endl;
}
double injected[2] = { 0.0 };
double produced[2] = { 0.0 };
double polyinj = 0.0;
double polyprod = 0.0;
for (int tr_substep = 0; tr_substep < num_transport_substeps_; ++tr_substep) {
tsolver_.solve(&state.faceflux()[0], initial_pressure,
state.pressure(), state.temperature(), &initial_porevol[0], &porevol[0],
&transport_src[0], &polymer_inflow_c[0], stepsize,
state.saturation(), state.surfacevol(),
state.getCellData( state.CONCENTRATION ), state.getCellData( state.CMAX ));
double substep_injected[2] = { 0.0 };
double substep_produced[2] = { 0.0 };
double substep_polyinj = 0.0;
double substep_polyprod = 0.0;
Opm::computeInjectedProduced(props_, poly_props_,
state,
transport_src, polymer_inflow_c, stepsize,
substep_injected, substep_produced,
substep_polyinj, substep_polyprod);
injected[0] += substep_injected[0];
injected[1] += substep_injected[1];
produced[0] += substep_produced[0];
produced[1] += substep_produced[1];
polyinj += substep_polyinj;
polyprod += substep_polyprod;
if (gravity_ != 0 && use_segregation_split_) {
tsolver_.solveGravity(columns_, stepsize,
state.saturation(), state.surfacevol(),
state.getCellData( state.CONCENTRATION ), state.getCellData( state.CMAX ));
}
}
transport_timer.stop();
double tt = transport_timer.secsSinceStart();
std::cout << "Transport solver took: " << tt << " seconds." << std::endl;
ttime += tt;
// Report volume balances.
Opm::computeSaturatedVol(porevol, state.surfacevol(), inplace_surfvol);
polymass = Opm::computePolymerMass(porevol, state.saturation(), state.getCellData( state.CONCENTRATION ), poly_props_.deadPoreVol());
polymass_adsorbed = Opm::computePolymerAdsorbed(grid_, props_, poly_props_,
state, rock_comp_props_);
tot_injected[0] += injected[0];
tot_injected[1] += injected[1];
tot_produced[0] += produced[0];
tot_produced[1] += produced[1];
tot_polyinj += polyinj;
tot_polyprod += polyprod;
std::cout.precision(5);
const int width = 18;
std::cout << "\nMass balance: "
" water(surfvol) oil(surfvol) polymer(kg)\n";
std::cout << " In-place: "
<< std::setw(width) << inplace_surfvol[0]
<< std::setw(width) << inplace_surfvol[1]
<< std::setw(width) << polymass << std::endl;
std::cout << " Adsorbed: "
<< std::setw(width) << 0.0
<< std::setw(width) << 0.0
<< std::setw(width) << polymass_adsorbed << std::endl;
std::cout << " Injected: "
<< std::setw(width) << injected[0]
<< std::setw(width) << injected[1]
<< std::setw(width) << polyinj << std::endl;
std::cout << " Produced: "
<< std::setw(width) << produced[0]
<< std::setw(width) << produced[1]
<< std::setw(width) << polyprod << std::endl;
std::cout << " Total inj: "
<< std::setw(width) << tot_injected[0]
<< std::setw(width) << tot_injected[1]
<< std::setw(width) << tot_polyinj << std::endl;
std::cout << " Total prod: "
<< std::setw(width) << tot_produced[0]
<< std::setw(width) << tot_produced[1]
<< std::setw(width) << tot_polyprod << std::endl;
const double balance[3] = { init_surfvol[0] - inplace_surfvol[0] - tot_produced[0] + tot_injected[0],
init_surfvol[1] - inplace_surfvol[1] - tot_produced[1] + tot_injected[1],
init_polymass - polymass - tot_polyprod + tot_polyinj - polymass_adsorbed };
std::cout << " Initial - inplace + inj - prod: "
<< std::setw(width) << balance[0]
<< std::setw(width) << balance[1]
<< std::setw(width) << balance[2]
<< std::endl;
std::cout << " Relative mass error: "
<< std::setw(width) << balance[0]/(init_surfvol[0] + tot_injected[0])
<< std::setw(width) << balance[1]/(init_surfvol[1] + tot_injected[1])
<< std::setw(width) << balance[2]/(init_polymass + tot_polyinj)
<< std::endl;
std::cout.precision(8);
watercut.push(timer.simulationTimeElapsed() + timer.currentStepLength(),
produced[0]/(produced[0] + produced[1]),
tot_produced[0]/tot_porevol_init);
if (wells_) {
wellreport.push(props_, *wells_, state.pressure(), state.surfacevol(),
state.saturation(), timer.simulationTimeElapsed() + timer.currentStepLength(),
well_state.bhp(), well_state.perfRates());
}
if (output_) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
outputWaterCut(watercut, output_dir_);
if (wells_) {
outputWellReport(wellreport, output_dir_);
}
}
total_timer.stop();
SimulatorReport report;
report.pressure_time = ptime;
report.transport_time = ttime;
report.total_time = total_timer.secsSinceStart();
return report;
}
SimulatorReport SimulatorFullyImplicitBlackoil::Impl::run(SimulatorTimer& timer,
BlackoilState& state,
WellState& well_state)
{
// Initialisation.
std::vector<double> porevol;
if (rock_comp_props_ && rock_comp_props_->isActive()) {
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
} else {
computePorevolume(grid_, props_.porosity(), porevol);
}
// const double tot_porevol_init = std::accumulate(porevol.begin(), porevol.end(), 0.0);
std::vector<double> initial_porevol = porevol;
// Main simulation loop.
Opm::time::StopWatch solver_timer;
double stime = 0.0;
Opm::time::StopWatch step_timer;
Opm::time::StopWatch total_timer;
total_timer.start();
#if 0
// These must be changed for three-phase.
double init_surfvol[2] = { 0.0 };
double inplace_surfvol[2] = { 0.0 };
double tot_injected[2] = { 0.0 };
double tot_produced[2] = { 0.0 };
Opm::computeSaturatedVol(porevol, state.surfacevol(), init_surfvol);
Opm::Watercut watercut;
watercut.push(0.0, 0.0, 0.0);
Opm::WellReport wellreport;
#endif
std::vector<double> fractional_flows;
std::vector<double> well_resflows_phase;
if (wells_) {
well_resflows_phase.resize((wells_->number_of_phases)*(wells_->number_of_wells), 0.0);
#if 0
wellreport.push(props_, *wells_,
state.pressure(), state.surfacevol(), state.saturation(),
0.0, well_state.bhp(), well_state.perfRates());
#endif
}
std::fstream tstep_os;
if (output_) {
std::string filename = output_dir_ + "/step_timing.param";
tstep_os.open(filename.c_str(), std::fstream::out | std::fstream::app);
}
for (; !timer.done(); ++timer) {
// Report timestep and (optionally) write state to disk.
step_timer.start();
timer.report(std::cout);
if (output_ && (timer.currentStepNum() % output_interval_ == 0)) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
outputWellStateMatlab(well_state,timer.currentStepNum(), output_dir_);
}
SimulatorReport sreport;
// Solve pressure equation.
// if (check_well_controls_) {
// computeFractionalFlow(props_, allcells_,
// state.pressure(), state.surfacevol(), state.saturation(),
// fractional_flows);
// wells_manager_.applyExplicitReinjectionControls(well_resflows_phase, well_resflows_phase);
// }
bool well_control_passed = !check_well_controls_;
int well_control_iteration = 0;
do {
// Run solver.
solver_timer.start();
std::vector<double> initial_pressure = state.pressure();
solver_.step(timer.currentStepLength(), state, well_state);
// Stop timer and report.
solver_timer.stop();
const double st = solver_timer.secsSinceStart();
std::cout << "Fully implicit solver took: " << st << " seconds." << std::endl;
stime += st;
sreport.pressure_time = st;
// Optionally, check if well controls are satisfied.
if (check_well_controls_) {
Opm::computePhaseFlowRatesPerWell(*wells_,
well_state.perfRates(),
fractional_flows,
well_resflows_phase);
std::cout << "Checking well conditions." << std::endl;
// For testing we set surface := reservoir
well_control_passed = wells_manager_.conditionsMet(well_state.bhp(), well_resflows_phase, well_resflows_phase);
++well_control_iteration;
if (!well_control_passed && well_control_iteration > max_well_control_iterations_) {
OPM_THROW(std::runtime_error, "Could not satisfy well conditions in " << max_well_control_iterations_ << " tries.");
}
if (!well_control_passed) {
std::cout << "Well controls not passed, solving again." << std::endl;
} else {
std::cout << "Well conditions met." << std::endl;
}
}
} while (!well_control_passed);
// Update pore volumes if rock is compressible.
if (rock_comp_props_ && rock_comp_props_->isActive()) {
initial_porevol = porevol;
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
}
// The reports below are geared towards two phases only.
#if 0
// Report mass balances.
double injected[2] = { 0.0 };
double produced[2] = { 0.0 };
Opm::computeInjectedProduced(props_, state, transport_src, stepsize,
injected, produced);
Opm::computeSaturatedVol(porevol, state.surfacevol(), inplace_surfvol);
tot_injected[0] += injected[0];
tot_injected[1] += injected[1];
tot_produced[0] += produced[0];
tot_produced[1] += produced[1];
std::cout.precision(5);
const int width = 18;
std::cout << "\nMass balance report.\n";
std::cout << " Injected surface volumes: "
<< std::setw(width) << injected[0]
<< std::setw(width) << injected[1] << std::endl;
std::cout << " Produced surface volumes: "
<< std::setw(width) << produced[0]
<< std::setw(width) << produced[1] << std::endl;
std::cout << " Total inj surface volumes: "
<< std::setw(width) << tot_injected[0]
<< std::setw(width) << tot_injected[1] << std::endl;
std::cout << " Total prod surface volumes: "
<< std::setw(width) << tot_produced[0]
<< std::setw(width) << tot_produced[1] << std::endl;
const double balance[2] = { init_surfvol[0] - inplace_surfvol[0] - tot_produced[0] + tot_injected[0],
init_surfvol[1] - inplace_surfvol[1] - tot_produced[1] + tot_injected[1] };
std::cout << " Initial - inplace + inj - prod: "
<< std::setw(width) << balance[0]
<< std::setw(width) << balance[1]
<< std::endl;
std::cout << " Relative mass error: "
<< std::setw(width) << balance[0]/(init_surfvol[0] + tot_injected[0])
<< std::setw(width) << balance[1]/(init_surfvol[1] + tot_injected[1])
<< std::endl;
std::cout.precision(8);
// Make well reports.
watercut.push(timer.currentTime() + timer.currentStepLength(),
produced[0]/(produced[0] + produced[1]),
tot_produced[0]/tot_porevol_init);
if (wells_) {
wellreport.push(props_, *wells_,
state.pressure(), state.surfacevol(), state.saturation(),
timer.currentTime() + timer.currentStepLength(),
well_state.bhp(), well_state.perfRates());
}
#endif
sreport.total_time = step_timer.secsSinceStart();
if (output_) {
sreport.reportParam(tstep_os);
}
}
if (output_) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
outputWellStateMatlab(well_state,timer.currentStepNum(), output_dir_);
#if 0
outputWaterCut(watercut, output_dir_);
if (wells_) {
outputWellReport(wellreport, output_dir_);
}
#endif
tstep_os.close();
}
total_timer.stop();
SimulatorReport report;
report.pressure_time = stime;
report.transport_time = 0.0;
report.total_time = total_timer.secsSinceStart();
return report;
}
SimulatorReport SimulatorIncompTwophase::Impl::run(SimulatorTimer& timer,
TwophaseState& state,
WellState& well_state)
{
std::vector<double> transport_src;
// Initialisation.
std::vector<double> porevol;
if (rock_comp_props_ && rock_comp_props_->isActive()) {
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
} else {
computePorevolume(grid_, props_.porosity(), porevol);
}
const double tot_porevol_init = std::accumulate(porevol.begin(), porevol.end(), 0.0);
std::vector<double> initial_porevol = porevol;
// Main simulation loop.
Opm::time::StopWatch pressure_timer;
double ptime = 0.0;
Opm::time::StopWatch transport_timer;
double ttime = 0.0;
Opm::time::StopWatch callback_timer;
double time_in_callbacks = 0.0;
Opm::time::StopWatch step_timer;
Opm::time::StopWatch total_timer;
total_timer.start();
double init_satvol[2] = { 0.0 };
double satvol[2] = { 0.0 };
double tot_injected[2] = { 0.0 };
double tot_produced[2] = { 0.0 };
Opm::computeSaturatedVol(porevol, state.saturation(), init_satvol);
*log_ << "\nInitial saturations are " << init_satvol[0]/tot_porevol_init
<< " " << init_satvol[1]/tot_porevol_init << std::endl;
Opm::Watercut watercut;
watercut.push(0.0, 0.0, 0.0);
Opm::WellReport wellreport;
std::vector<double> fractional_flows;
std::vector<double> well_resflows_phase;
if (wells_) {
well_resflows_phase.resize((wells_->number_of_phases)*(wells_->number_of_wells), 0.0);
wellreport.push(props_, *wells_, state.saturation(), 0.0, well_state.bhp(), well_state.perfRates());
}
std::fstream tstep_os;
if (output_) {
std::string filename = output_dir_ + "/step_timing.param";
tstep_os.open(filename.c_str(), std::fstream::out | std::fstream::app);
}
while (!timer.done()) {
// Report timestep and (optionally) write state to disk.
step_timer.start();
timer.report(*log_);
if (output_ && (timer.currentStepNum() % output_interval_ == 0)) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
if (use_reorder_) {
// This use of dynamic_cast is not ideal, but should be safe.
outputVectorMatlab(std::string("reorder_it"),
dynamic_cast<const TransportSolverTwophaseReorder&>(*tsolver_).getReorderIterations(),
timer.currentStepNum(), output_dir_);
}
}
SimulatorReport sreport;
// Solve pressure equation.
if (check_well_controls_) {
computeFractionalFlow(props_, allcells_, state.saturation(), fractional_flows);
wells_manager_.applyExplicitReinjectionControls(well_resflows_phase, well_resflows_phase);
}
bool well_control_passed = !check_well_controls_;
int well_control_iteration = 0;
do {
// Run solver.
pressure_timer.start();
std::vector<double> initial_pressure = state.pressure();
psolver_.solve(timer.currentStepLength(), state, well_state);
// Renormalize pressure if rock is incompressible, and
// there are no pressure conditions (bcs or wells).
// It is deemed sufficient for now to renormalize
// using geometric volume instead of pore volume.
if ((rock_comp_props_ == NULL || !rock_comp_props_->isActive())
&& allNeumannBCs(bcs_) && allRateWells(wells_)) {
// Compute average pressures of previous and last
// step, and total volume.
double av_prev_press = 0.0;
double av_press = 0.0;
double tot_vol = 0.0;
const int num_cells = grid_.number_of_cells;
for (int cell = 0; cell < num_cells; ++cell) {
av_prev_press += initial_pressure[cell]*grid_.cell_volumes[cell];
av_press += state.pressure()[cell]*grid_.cell_volumes[cell];
tot_vol += grid_.cell_volumes[cell];
}
// Renormalization constant
const double ren_const = (av_prev_press - av_press)/tot_vol;
for (int cell = 0; cell < num_cells; ++cell) {
state.pressure()[cell] += ren_const;
}
const int num_wells = (wells_ == NULL) ? 0 : wells_->number_of_wells;
for (int well = 0; well < num_wells; ++well) {
well_state.bhp()[well] += ren_const;
}
}
// Stop timer and report.
pressure_timer.stop();
double pt = pressure_timer.secsSinceStart();
*log_ << "Pressure solver took: " << pt << " seconds." << std::endl;
ptime += pt;
sreport.pressure_time = pt;
// Optionally, check if well controls are satisfied.
if (check_well_controls_) {
Opm::computePhaseFlowRatesPerWell(*wells_,
well_state.perfRates(),
fractional_flows,
well_resflows_phase);
*log_ << "Checking well conditions." << std::endl;
// For testing we set surface := reservoir
well_control_passed = wells_manager_.conditionsMet(well_state.bhp(), well_resflows_phase, well_resflows_phase);
++well_control_iteration;
if (!well_control_passed && well_control_iteration > max_well_control_iterations_) {
OPM_THROW(std::runtime_error, "Could not satisfy well conditions in " << max_well_control_iterations_ << " tries.");
}
if (!well_control_passed) {
*log_ << "Well controls not passed, solving again." << std::endl;
} else {
*log_ << "Well conditions met." << std::endl;
}
}
} while (!well_control_passed);
// Update pore volumes if rock is compressible.
if (rock_comp_props_ && rock_comp_props_->isActive()) {
initial_porevol = porevol;
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
}
// Process transport sources (to include bdy terms and well flows).
Opm::computeTransportSource(grid_, src_, state.faceflux(), 1.0,
wells_, well_state.perfRates(), transport_src);
// Solve transport.
transport_timer.start();
double stepsize = timer.currentStepLength();
if (num_transport_substeps_ != 1) {
stepsize /= double(num_transport_substeps_);
*log_ << "Making " << num_transport_substeps_ << " transport substeps." << std::endl;
}
double injected[2] = { 0.0 };
double produced[2] = { 0.0 };
for (int tr_substep = 0; tr_substep < num_transport_substeps_; ++tr_substep) {
tsolver_->solve(&initial_porevol[0], &transport_src[0], stepsize, state);
double substep_injected[2] = { 0.0 };
double substep_produced[2] = { 0.0 };
Opm::computeInjectedProduced(props_, state.saturation(), transport_src, stepsize,
substep_injected, substep_produced);
injected[0] += substep_injected[0];
injected[1] += substep_injected[1];
produced[0] += substep_produced[0];
produced[1] += substep_produced[1];
if (use_reorder_ && use_segregation_split_) {
// Again, unfortunate but safe use of dynamic_cast.
// Possible solution: refactor gravity solver to its own class.
dynamic_cast<TransportSolverTwophaseReorder&>(*tsolver_)
.solveGravity(&initial_porevol[0], stepsize, state);
}
watercut.push(timer.simulationTimeElapsed() + timer.currentStepLength(),
produced[0]/(produced[0] + produced[1]),
tot_produced[0]/tot_porevol_init);
if (wells_) {
wellreport.push(props_, *wells_, state.saturation(),
timer.simulationTimeElapsed() + timer.currentStepLength(),
well_state.bhp(), well_state.perfRates());
}
}
transport_timer.stop();
double tt = transport_timer.secsSinceStart();
sreport.transport_time = tt;
*log_ << "Transport solver took: " << tt << " seconds." << std::endl;
ttime += tt;
// Report volume balances.
Opm::computeSaturatedVol(porevol, state.saturation(), satvol);
tot_injected[0] += injected[0];
tot_injected[1] += injected[1];
tot_produced[0] += produced[0];
tot_produced[1] += produced[1];
reportVolumes(*log_, satvol, tot_porevol_init,
tot_injected, tot_produced,
injected, produced,
init_satvol);
sreport.total_time = step_timer.secsSinceStart();
if (output_) {
sreport.reportParam(tstep_os);
}
// advance the timer to the end of the timestep *before* notifying
// the client that the timestep is done
++timer;
// notify all clients that we are done with the timestep
callback_timer.start ();
timestep_completed_.signal ();
callback_timer.stop ();
time_in_callbacks += callback_timer.secsSinceStart ();
}
if (output_) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
if (use_reorder_) {
// This use of dynamic_cast is not ideal, but should be safe.
outputVectorMatlab(std::string("reorder_it"),
dynamic_cast<const TransportSolverTwophaseReorder&>(*tsolver_).getReorderIterations(),
timer.currentStepNum(), output_dir_);
}
outputWaterCut(watercut, output_dir_);
if (wells_) {
outputWellReport(wellreport, output_dir_);
}
tstep_os.close();
}
total_timer.stop();
SimulatorReport report;
report.pressure_time = ptime;
report.transport_time = ttime;
report.total_time = total_timer.secsSinceStart() - time_in_callbacks;
return report;
}
SimulatorReport SimulatorPolymer::Impl::run(SimulatorTimer& timer,
PolymerState& state,
WellState& well_state)
{
std::vector<double> transport_src;
// Initialisation.
std::vector<double> porevol;
if (rock_comp_props_ && rock_comp_props_->isActive()) {
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
} else {
computePorevolume(grid_, props_.porosity(), porevol);
}
const double tot_porevol_init = std::accumulate(porevol.begin(), porevol.end(), 0.0);
// Main simulation loop.
Opm::time::StopWatch pressure_timer;
double ptime = 0.0;
Opm::time::StopWatch transport_timer;
double ttime = 0.0;
Opm::time::StopWatch total_timer;
total_timer.start();
double init_satvol[2] = { 0.0 };
double init_polymass = 0.0;
double satvol[2] = { 0.0 };
double polymass = 0.0;
double polymass_adsorbed = 0.0;
double injected[2] = { 0.0 };
double produced[2] = { 0.0 };
double polyinj = 0.0;
double polyprod = 0.0;
double tot_injected[2] = { 0.0 };
double tot_produced[2] = { 0.0 };
double tot_polyinj = 0.0;
double tot_polyprod = 0.0;
Opm::computeSaturatedVol(porevol, state.saturation(), init_satvol);
std::cout << "\nInitial saturations are " << init_satvol[0]/tot_porevol_init
<< " " << init_satvol[1]/tot_porevol_init << std::endl;
Opm::Watercut watercut;
watercut.push(0.0, 0.0, 0.0);
Opm::WellReport wellreport;
std::vector<double> fractional_flows;
std::vector<double> well_resflows_phase;
if (wells_) {
well_resflows_phase.resize((wells_->number_of_phases)*(wells_->number_of_wells), 0.0);
wellreport.push(props_, *wells_, state.saturation(), 0.0, well_state.bhp(), well_state.perfRates());
}
for (; !timer.done(); ++timer) {
// Report timestep and (optionally) write state to disk.
timer.report(std::cout);
if (output_ && (timer.currentStepNum() % output_interval_ == 0)) {
outputState(grid_, state, timer.currentStepNum(), output_dir_);
}
// Solve pressure.
do {
pressure_timer.start();
psolver_.solve(timer.currentStepLength(), state, well_state);
pressure_timer.stop();
double pt = pressure_timer.secsSinceStart();
std::cout << "Pressure solver took: " << pt << " seconds." << std::endl;
ptime += pt;
} while (false);
// Update pore volumes if rock is compressible.
if (rock_comp_props_ && rock_comp_props_->isActive()) {
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
}
// Process transport sources (to include bdy terms and well flows).
Opm::computeTransportSource(grid_, src_, state.faceflux(), 1.0,
wells_, well_state.perfRates(), transport_src);
// Find inflow rate.
const double current_time = timer.currentTime();
double stepsize = timer.currentStepLength();
const double inflowc0 = poly_inflow_(current_time + 1e-5*stepsize);
const double inflowc1 = poly_inflow_(current_time + (1.0 - 1e-5)*stepsize);
if (inflowc0 != inflowc1) {
std::cout << "**** Warning: polymer inflow rate changes during timestep. Using rate near start of step.";
}
const double inflow_c = inflowc0;
// Solve transport.
transport_timer.start();
if (num_transport_substeps_ != 1) {
stepsize /= double(num_transport_substeps_);
std::cout << "Making " << num_transport_substeps_ << " transport substeps." << std::endl;
}
for (int tr_substep = 0; tr_substep < num_transport_substeps_; ++tr_substep) {
tsolver_.solve(&state.faceflux()[0], &porevol[0], &transport_src[0], stepsize, inflow_c,
state.saturation(), state.concentration(), state.maxconcentration());
Opm::computeInjectedProduced(props_, poly_props_,
state.saturation(), state.concentration(), state.maxconcentration(),
transport_src, timer.currentStepLength(), inflow_c,
injected, produced, polyinj, polyprod);
if (use_segregation_split_) {
tsolver_.solveGravity(columns_, &porevol[0], stepsize,
state.saturation(), state.concentration(), state.maxconcentration());
}
}
transport_timer.stop();
double tt = transport_timer.secsSinceStart();
std::cout << "Transport solver took: " << tt << " seconds." << std::endl;
ttime += tt;
// Report volume balances.
Opm::computeSaturatedVol(porevol, state.saturation(), satvol);
polymass = Opm::computePolymerMass(porevol, state.saturation(), state.concentration(), poly_props_.deadPoreVol());
polymass_adsorbed = Opm::computePolymerAdsorbed(props_, poly_props_, porevol, state.maxconcentration());
tot_injected[0] += injected[0];
tot_injected[1] += injected[1];
tot_produced[0] += produced[0];
tot_produced[1] += produced[1];
tot_polyinj += polyinj;
tot_polyprod += polyprod;
std::cout.precision(5);
const int width = 18;
std::cout << "\nVolume and polymer mass balance: "
" water(pv) oil(pv) polymer(kg)\n";
std::cout << " Saturated volumes: "
<< std::setw(width) << satvol[0]/tot_porevol_init
<< std::setw(width) << satvol[1]/tot_porevol_init
<< std::setw(width) << polymass << std::endl;
std::cout << " Adsorbed volumes: "
<< std::setw(width) << 0.0
<< std::setw(width) << 0.0
<< std::setw(width) << polymass_adsorbed << std::endl;
std::cout << " Injected volumes: "
<< std::setw(width) << injected[0]/tot_porevol_init
<< std::setw(width) << injected[1]/tot_porevol_init
<< std::setw(width) << polyinj << std::endl;
std::cout << " Produced volumes: "
<< std::setw(width) << produced[0]/tot_porevol_init
<< std::setw(width) << produced[1]/tot_porevol_init
<< std::setw(width) << polyprod << std::endl;
std::cout << " Total inj volumes: "
<< std::setw(width) << tot_injected[0]/tot_porevol_init
<< std::setw(width) << tot_injected[1]/tot_porevol_init
<< std::setw(width) << tot_polyinj << std::endl;
std::cout << " Total prod volumes: "
<< std::setw(width) << tot_produced[0]/tot_porevol_init
<< std::setw(width) << tot_produced[1]/tot_porevol_init
<< std::setw(width) << tot_polyprod << std::endl;
std::cout << " In-place + prod - inj: "
<< std::setw(width) << (satvol[0] + tot_produced[0] - tot_injected[0])/tot_porevol_init
<< std::setw(width) << (satvol[1] + tot_produced[1] - tot_injected[1])/tot_porevol_init
<< std::setw(width) << (polymass + tot_polyprod - tot_polyinj + polymass_adsorbed) << std::endl;
std::cout << " Init - now - pr + inj: "
<< std::setw(width) << (init_satvol[0] - satvol[0] - tot_produced[0] + tot_injected[0])/tot_porevol_init
<< std::setw(width) << (init_satvol[1] - satvol[1] - tot_produced[1] + tot_injected[1])/tot_porevol_init
<< std::setw(width) << (init_polymass - polymass - tot_polyprod + tot_polyinj - polymass_adsorbed)
<< std::endl;
std::cout.precision(8);
watercut.push(timer.currentTime() + timer.currentStepLength(),
produced[0]/(produced[0] + produced[1]),
tot_produced[0]/tot_porevol_init);
if (wells_) {
wellreport.push(props_, *wells_, state.saturation(),
timer.currentTime() + timer.currentStepLength(),
well_state.bhp(), well_state.perfRates());
}
}
if (output_) {
outputState(grid_, state, timer.currentStepNum(), output_dir_);
outputWaterCut(watercut, output_dir_);
if (wells_) {
outputWellReport(wellreport, output_dir_);
}
}
total_timer.stop();
SimulatorReport report;
report.pressure_time = ptime;
report.transport_time = ttime;
report.total_time = total_timer.secsSinceStart();
return report;
}
SimulatorReport SimulatorCompressibleAd::Impl::run(SimulatorTimer& timer,
BlackoilState& state,
WellState& well_state)
{
std::vector<double> transport_src;
// Initialisation.
std::vector<double> porevol;
if (rock_comp_props_ && rock_comp_props_->isActive()) {
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
} else {
computePorevolume(grid_, props_.porosity(), porevol);
}
const double tot_porevol_init = std::accumulate(porevol.begin(), porevol.end(), 0.0);
std::vector<double> initial_porevol = porevol;
// Main simulation loop.
Opm::time::StopWatch pressure_timer;
double ptime = 0.0;
Opm::time::StopWatch transport_timer;
double ttime = 0.0;
Opm::time::StopWatch step_timer;
Opm::time::StopWatch total_timer;
total_timer.start();
double init_surfvol[2] = { 0.0 };
double inplace_surfvol[2] = { 0.0 };
double tot_injected[2] = { 0.0 };
double tot_produced[2] = { 0.0 };
Opm::computeSaturatedVol(porevol, state.surfacevol(), init_surfvol);
Opm::Watercut watercut;
watercut.push(0.0, 0.0, 0.0);
Opm::WellReport wellreport;
std::vector<double> fractional_flows;
std::vector<double> well_resflows_phase;
if (wells_) {
well_resflows_phase.resize((wells_->number_of_phases)*(wells_->number_of_wells), 0.0);
wellreport.push(props_, *wells_,
state.pressure(), state.surfacevol(), state.saturation(),
0.0, well_state.bhp(), well_state.perfRates());
}
std::fstream tstep_os;
if (output_) {
std::string filename = output_dir_ + "/step_timing.param";
tstep_os.open(filename.c_str(), std::fstream::out | std::fstream::app);
}
for (; !timer.done(); ++timer) {
// Report timestep and (optionally) write state to disk.
step_timer.start();
timer.report(std::cout);
if (output_ && (timer.currentStepNum() % output_interval_ == 0)) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
}
SimulatorReport sreport;
// Solve pressure equation.
if (check_well_controls_) {
computeFractionalFlow(props_, allcells_,
state.pressure(), state.surfacevol(), state.saturation(),
fractional_flows);
wells_manager_.applyExplicitReinjectionControls(well_resflows_phase, well_resflows_phase);
}
bool well_control_passed = !check_well_controls_;
int well_control_iteration = 0;
do {
// Run solver.
pressure_timer.start();
std::vector<double> initial_pressure = state.pressure();
psolver_.solve(timer.currentStepLength(), state, well_state);
#if 0
// Renormalize pressure if both fluids and rock are
// incompressible, and there are no pressure
// conditions (bcs or wells). It is deemed sufficient
// for now to renormalize using geometric volume
// instead of pore volume.
if (psolver_.singularPressure()) {
// Compute average pressures of previous and last
// step, and total volume.
double av_prev_press = 0.0;
double av_press = 0.0;
double tot_vol = 0.0;
const int num_cells = grid_.number_of_cells;
for (int cell = 0; cell < num_cells; ++cell) {
av_prev_press += initial_pressure[cell]*grid_.cell_volumes[cell];
av_press += state.pressure()[cell]*grid_.cell_volumes[cell];
tot_vol += grid_.cell_volumes[cell];
}
// Renormalization constant
const double ren_const = (av_prev_press - av_press)/tot_vol;
for (int cell = 0; cell < num_cells; ++cell) {
state.pressure()[cell] += ren_const;
}
const int num_wells = (wells_ == NULL) ? 0 : wells_->number_of_wells;
for (int well = 0; well < num_wells; ++well) {
well_state.bhp()[well] += ren_const;
}
}
#endif
// Stop timer and report.
pressure_timer.stop();
double pt = pressure_timer.secsSinceStart();
std::cout << "Pressure solver took: " << pt << " seconds." << std::endl;
ptime += pt;
sreport.pressure_time = pt;
// Optionally, check if well controls are satisfied.
if (check_well_controls_) {
Opm::computePhaseFlowRatesPerWell(*wells_,
well_state.perfRates(),
fractional_flows,
well_resflows_phase);
std::cout << "Checking well conditions." << std::endl;
// For testing we set surface := reservoir
well_control_passed = wells_manager_.conditionsMet(well_state.bhp(), well_resflows_phase, well_resflows_phase);
++well_control_iteration;
if (!well_control_passed && well_control_iteration > max_well_control_iterations_) {
THROW("Could not satisfy well conditions in " << max_well_control_iterations_ << " tries.");
}
if (!well_control_passed) {
std::cout << "Well controls not passed, solving again." << std::endl;
} else {
std::cout << "Well conditions met." << std::endl;
}
}
} while (!well_control_passed);
// Update pore volumes if rock is compressible.
if (rock_comp_props_ && rock_comp_props_->isActive()) {
initial_porevol = porevol;
computePorevolume(grid_, props_.porosity(), *rock_comp_props_, state.pressure(), porevol);
}
// Process transport sources from well flows.
Opm::computeTransportSource(props_, wells_, well_state, transport_src);
// Solve transport.
transport_timer.start();
double stepsize = timer.currentStepLength();
if (num_transport_substeps_ != 1) {
stepsize /= double(num_transport_substeps_);
std::cout << "Making " << num_transport_substeps_ << " transport substeps." << std::endl;
}
double injected[2] = { 0.0 };
double produced[2] = { 0.0 };
for (int tr_substep = 0; tr_substep < num_transport_substeps_; ++tr_substep) {
tsolver_.solve(&state.faceflux()[0], &state.pressure()[0],
&initial_porevol[0], &porevol[0], &transport_src[0], stepsize,
state.saturation(), state.surfacevol());
double substep_injected[2] = { 0.0 };
double substep_produced[2] = { 0.0 };
Opm::computeInjectedProduced(props_, state, transport_src, stepsize,
substep_injected, substep_produced);
injected[0] += substep_injected[0];
injected[1] += substep_injected[1];
produced[0] += substep_produced[0];
produced[1] += substep_produced[1];
if (gravity_ != 0 && use_segregation_split_) {
tsolver_.solveGravity(columns_, stepsize, state.saturation(), state.surfacevol());
}
}
transport_timer.stop();
double tt = transport_timer.secsSinceStart();
sreport.transport_time = tt;
std::cout << "Transport solver took: " << tt << " seconds." << std::endl;
ttime += tt;
// Report volume balances.
Opm::computeSaturatedVol(porevol, state.surfacevol(), inplace_surfvol);
tot_injected[0] += injected[0];
tot_injected[1] += injected[1];
tot_produced[0] += produced[0];
tot_produced[1] += produced[1];
std::cout.precision(5);
const int width = 18;
std::cout << "\nMass balance report.\n";
std::cout << " Injected surface volumes: "
<< std::setw(width) << injected[0]
<< std::setw(width) << injected[1] << std::endl;
std::cout << " Produced surface volumes: "
<< std::setw(width) << produced[0]
<< std::setw(width) << produced[1] << std::endl;
std::cout << " Total inj surface volumes: "
<< std::setw(width) << tot_injected[0]
<< std::setw(width) << tot_injected[1] << std::endl;
std::cout << " Total prod surface volumes: "
<< std::setw(width) << tot_produced[0]
<< std::setw(width) << tot_produced[1] << std::endl;
const double balance[2] = { init_surfvol[0] - inplace_surfvol[0] - tot_produced[0] + tot_injected[0],
init_surfvol[1] - inplace_surfvol[1] - tot_produced[1] + tot_injected[1] };
std::cout << " Initial - inplace + inj - prod: "
<< std::setw(width) << balance[0]
<< std::setw(width) << balance[1]
<< std::endl;
std::cout << " Relative mass error: "
<< std::setw(width) << balance[0]/(init_surfvol[0] + tot_injected[0])
<< std::setw(width) << balance[1]/(init_surfvol[1] + tot_injected[1])
<< std::endl;
std::cout.precision(8);
watercut.push(timer.currentTime() + timer.currentStepLength(),
produced[0]/(produced[0] + produced[1]),
tot_produced[0]/tot_porevol_init);
if (wells_) {
wellreport.push(props_, *wells_,
state.pressure(), state.surfacevol(), state.saturation(),
timer.currentTime() + timer.currentStepLength(),
well_state.bhp(), well_state.perfRates());
}
sreport.total_time = step_timer.secsSinceStart();
if (output_) {
sreport.reportParam(tstep_os);
}
}
if (output_) {
if (output_vtk_) {
outputStateVtk(grid_, state, timer.currentStepNum(), output_dir_);
}
outputStateMatlab(grid_, state, timer.currentStepNum(), output_dir_);
outputWaterCut(watercut, output_dir_);
if (wells_) {
outputWellReport(wellreport, output_dir_);
}
tstep_os.close();
}
total_timer.stop();
SimulatorReport report;
report.pressure_time = ptime;
report.transport_time = ttime;
report.total_time = total_timer.secsSinceStart();
return report;
}
