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 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);
}
}
/// 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];
}
}
}
}
/// 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;
}
}
}
}
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);
}