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recovering well restart data for multisegment well

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When multisegment wells are involved for RESTART, based on the recovered
segment-related quantities as Opm::data::Segment objects, the segment
phase rates and segment pressure are recovered as part of the
WellStateFullyImplicitBlackoil.
This commit is contained in:
Kai Bao 2019-03-22 09:41:29 +01:00 committed by Bård Skaflestad
parent dce27c6829
commit ca69e2334a
4 changed files with 128 additions and 40 deletions
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9
opm/autodiff/BlackoilWellModel.hpp
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@ -423,9 +423,14 @@ namespace Opm {
// convert well data from opm-common to well state from opm-core
void wellsToState( const data::Wells& wells,
PhaseUsage phases,
WellStateFullyImplicitBlackoil& state );
const PhaseUsage& phases,
const bool handle_ms_well,
const int report_step,
WellStateFullyImplicitBlackoil& state ) const;
bool anyMSWellOpen(const Wells* wells, const int report_step) const;
const Well* getWellEcl(const std::string& well_name) const;
};

116
opm/autodiff/BlackoilWellModel_impl.hpp
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@ -259,16 +259,8 @@ namespace Opm {
well_state_.init(wells(), cellPressures, schedule(), wells_ecl_, timeStepIdx, &previous_well_state_, phase_usage_);
// handling MS well related
if (param_.use_multisegment_well_) { // if we use MultisegmentWell model
for (const auto& well : wells_ecl_) {
// TODO: this is acutally not very accurate, because sometimes a deck just claims a MS well
// while keep the well shut. More accurately, we should check if the well exisits in the Wells
// structure here
if (well->isMultiSegment(timeStepIdx) ) { // there is one well is MS well
well_state_.initWellStateMSWell(wells(), wells_ecl_, timeStepIdx, phase_usage_, previous_well_state_);
break;
}
}
if (param_.use_multisegment_well_&& anyMSWellOpen(wells(), timeStepIdx)) { // if we use MultisegmentWell model
well_state_.initWellStateMSWell(wells(), wells_ecl_, timeStepIdx, phase_usage_, &previous_well_state_);
}
// update the previous well state. This is used to restart failed steps.
@ -480,13 +472,16 @@ namespace Opm {
initFromRestartFile(const RestartValue& restartValues)
{
const auto& defunctWellNames = ebosSimulator_.vanguard().defunctWellNames();
// The restart step value is used to identify wells present at the given
// time step. Wells that are added at the same time step as RESTART is initiated
// will not be present in a restart file. Use the previous time step to retrieve
// wells that have information written to the restart file.
const int report_step = std::max(eclState().getInitConfig().getRestartStep() - 1, 0);
WellsManager wellsmanager(eclState(),
schedule(),
// The restart step value is used to identify wells present at the given
// time step. Wells that are added at the same time step as RESTART is initiated
// will not be present in a restart file. Use the previous time step to retrieve
// wells that have information written to the restart file.
std::max(eclState().getInitConfig().getRestartStep() - 1, 0),
report_step,
Opm::UgGridHelpers::numCells(grid()),
Opm::UgGridHelpers::globalCell(grid()),
Opm::UgGridHelpers::cartDims(grid()),
@ -502,8 +497,9 @@ namespace Opm {
if (nw > 0) {
const auto phaseUsage = phaseUsageFromDeck(eclState());
const size_t numCells = Opm::UgGridHelpers::numCells(grid());
well_state_.resize(wells, schedule(), numCells, phaseUsage); // Resize for restart step
wellsToState(restartValues.wells, phaseUsage, well_state_);
const bool handle_ms_well = (param_.use_multisegment_well_ && anyMSWellOpen(wells, report_step));
well_state_.resize(wells, wells_ecl_, schedule(), handle_ms_well, report_step, numCells, phaseUsage); // Resize for restart step
wellsToState(restartValues.wells, phaseUsage, handle_ms_well, report_step, well_state_);
previous_well_state_ = well_state_;
}
initial_step_ = false;
@ -1667,8 +1663,11 @@ namespace Opm {
void
BlackoilWellModel<TypeTag>::
wellsToState( const data::Wells& wells,
PhaseUsage phases,
WellStateFullyImplicitBlackoil& state ) {
const PhaseUsage& phases,
const bool handle_ms_well,
const int report_step,
WellStateFullyImplicitBlackoil& state ) const
{
using rt = data::Rates::opt;
const auto np = phases.num_phases;
@ -1724,6 +1723,85 @@ namespace Opm {
}
++local_comp_index;
}
if (handle_ms_well && !well.segments.empty()) {
// we need the well_ecl_ information
const std::string& well_name = wm.first;
const Well* well_ecl = getWellEcl(well_name);
assert(well_ecl);
const WellSegments& segment_set = well_ecl->getWellSegments(report_step);
const int top_segment_index = state.topSegmentIndex(well_index);
const auto& segments = well.segments;
// \Note: eventually we need to hanlde the situations that some segments are shut
assert(segment_set.size() == segments.size());
for (const auto& segment : segments) {
const int segment_index = segment_set.segmentNumberToIndex(segment.first);
// recovering segment rates and pressure from the restart values
state.segPress()[top_segment_index + segment_index] = segment.second.pressure;
const auto& segment_rates = segment.second.rates;
for (int p = 0; p < np; ++p) {
state.segRates()[(top_segment_index + segment_index) * np + p] = segment_rates.get(phs[p]);
}
}
}
}
}
template<typename TypeTag>
bool
BlackoilWellModel<TypeTag>::
anyMSWellOpen(const Wells* wells, const int report_step) const
{
bool any_ms_well_open = false;
const int nw = wells->number_of_wells;
for (int w = 0; w < nw; ++w) {
const std::string well_name = std::string(wells->name[w]);
const Well* well_ecl = getWellEcl(well_name);
assert(well_ecl);
if (well_ecl->isMultiSegment(report_step) ) {
any_ms_well_open = true;
break;
}
}
return any_ms_well_open;
}
template<typename TypeTag>
const Well*
BlackoilWellModel<TypeTag>::
getWellEcl(const std::string& well_name) const
{
// finding the location of the well in wells_ecl
const int nw_wells_ecl = wells_ecl_.size();
int index_well = 0;
for (; index_well < nw_wells_ecl; ++index_well) {
if (well_name == wells_ecl_[index_well]->name()) {
break;
}
}
if (index_well < nw_wells_ecl) {
return wells_ecl_[index_well];
} else {
return nullptr;
}
}

34
opm/autodiff/WellStateFullyImplicitBlackoil.hpp
View File

@ -281,23 +281,28 @@ namespace Opm
// we need to create a trival segment related values to avoid there will be some
// multi-segment wells added later.
nseg_ = nw;
seg_number_.clear();
top_segment_index_.reserve(nw);
seg_number_.reserve(nw);
top_segment_index_.resize(nw);
seg_number_.resize(nw);
for (int w = 0; w < nw; ++w) {
top_segment_index_.push_back(w);
seg_number_.push_back(1); // Top segment is segment #1
top_segment_index_[w] = w;
seg_number_[w] = 1; // Top segment is segment #1
}
segpress_ = bhp();
segrates_ = wellRates();
}
}
void resize(const Wells* wells, const Schedule& schedule, std::size_t numCells, const PhaseUsage& pu)
void resize(const Wells* wells, const std::vector<const Well*>& wells_ecl, const Schedule& schedule,
const bool handle_ms_well, const int report_step, const size_t numCells,
const PhaseUsage& pu)
{
const std::vector<double> tmp(numCells, 0.0); // <- UGLY HACK to pass the size
const std::vector<const Well*> wells_ecl;
init(wells, tmp, schedule, wells_ecl, 0, nullptr, pu);
if (handle_ms_well) {
initWellStateMSWell(wells, wells_ecl, report_step, pu, nullptr);
}
}
/// Allocate and initialize if wells is non-null. Also tries
@ -601,9 +606,8 @@ namespace Opm
/// init the MS well related.
template <typename PrevWellState>
void initWellStateMSWell(const Wells* wells, const std::vector<const Well*>& wells_ecl,
const int time_step, const PhaseUsage& pu, const PrevWellState& prev_well_state)
const int time_step, const PhaseUsage& pu, const WellStateFullyImplicitBlackoil* prev_well_state)
{
// still using the order in wells
const int nw = wells->number_of_wells;
@ -733,13 +737,13 @@ namespace Opm
assert(int(segpress_.size()) == nseg_);
assert(int(segrates_.size()) == nseg_ * numPhases() );
if (!prev_well_state.wellMap().empty()) {
if (prev_well_state && !prev_well_state->wellMap().empty()) {
// copying MS well related
const auto& end = prev_well_state.wellMap().end();
const auto& end = prev_well_state->wellMap().end();
const int np = numPhases();
for (int w = 0; w < nw; ++w) {
const std::string name( wells->name[w] );
const auto& it = prev_well_state.wellMap().find( name );
const auto& it = prev_well_state->wellMap().find( name );
if (it != end) { // the well is found in the prev_well_state
// TODO: the well with same name can change a lot, like they might not have same number of segments
@ -747,7 +751,7 @@ namespace Opm
// for now, we just copy them.
const int old_index_well = (*it).second[0];
const int new_index_well = w;
const int old_top_segment_index = prev_well_state.topSegmentIndex(old_index_well);
const int old_top_segment_index = prev_well_state->topSegmentIndex(old_index_well);
const int new_top_segmnet_index = topSegmentIndex(new_index_well);
int number_of_segment = 0;
// if it is the last well in list
@ -758,11 +762,11 @@ namespace Opm
}
for (int i = 0; i < number_of_segment * np; ++i) {
segrates_[new_top_segmnet_index * np + i] = prev_well_state.segRates()[old_top_segment_index * np + i];
segrates_[new_top_segmnet_index * np + i] = prev_well_state->segRates()[old_top_segment_index * np + i];
}
for (int i = 0; i < number_of_segment; ++i) {
segpress_[new_top_segmnet_index + i] = prev_well_state.segPress()[old_top_segment_index + i];
segpress_[new_top_segmnet_index + i] = prev_well_state->segPress()[old_top_segment_index + i];
}
}
}

9
tests/test_wellstatefullyimplicitblackoil.cpp
View File

@ -64,7 +64,6 @@ namespace {
buildWellState(const Setup& setup, const std::size_t timeStep)
{
auto state = Opm::WellStateFullyImplicitBlackoil{};
auto state0 = Opm::WellStateFullyImplicitBlackoil{}; // Empty.
const auto cpress =
std::vector<double>(setup.grid.c_grid()->number_of_cells,
@ -74,11 +73,13 @@ namespace {
setup.es, setup.sched, timeStep, *setup.grid.c_grid()
};
state.init(wmgr.c_wells(), cpress, setup.sched.getWells(timeStep),
state.init(wmgr.c_wells(), cpress, setup.sched,
setup.sched.getWells(timeStep),
timeStep, nullptr, setup.pu);
state.initWellStateMSWell(wmgr.c_wells(), setup.sched.getWells(timeStep),
timeStep, setup.pu, state0);
state.initWellStateMSWell(wmgr.c_wells(),
setup.sched.getWells(timeStep),
timeStep, setup.pu, nullptr);
return state;
}