static bool allRateWells(const Wells* wells)
{
if (wells == NULL) {
return true;
}
const int nw = wells->number_of_wells;
for (int w = 0; w < nw; ++w) {
const WellControls* wc = wells->ctrls[w];
if (well_controls_well_is_open( wc )) {
if (well_controls_get_current_type(wc) == BHP) {
return false;
}
}
}
return true;
}
void init(const Wells* wells, const State& state)
{
// clear old name mapping
wellMap_.clear();
wells_.reset( clone_wells( wells ) );
if (wells) {
const int nw = wells->number_of_wells;
const int np = wells->number_of_phases;
bhp_.resize(nw);
thp_.resize(nw);
temperature_.resize(nw, 273.15 + 20); // standard temperature for now
wellrates_.resize(nw * np, 0.0);
for (int w = 0; w < nw; ++w) {
assert((wells->type[w] == INJECTOR) || (wells->type[w] == PRODUCER));
const WellControls* ctrl = wells->ctrls[w];
const int num_perf_this_well = wells->well_connpos[w + 1] - wells->well_connpos[w];
// setup wellname -> well index mapping
{
assert( wells->name[ w ] );
std::string name( wells->name[ w ] );
assert( name.size() > 0 );
mapentry_t& wellMapEntry = wellMap_[name];
wellMapEntry[ 0 ] = w;
wellMapEntry[ 1 ] = wells->well_connpos[w];
// also store the number of perforations in this well
wellMapEntry[ 2 ] = num_perf_this_well;
}
if ( num_perf_this_well == 0 )
{
// No perforations of the well. Initialize to zero.
for (int p = 0; p < np; ++p) {
wellrates_[np*w + p] = 0.0;
}
bhp_[w] = 0;
thp_[w] = 0;
continue;
}
if (well_controls_well_is_stopped(ctrl)) {
// Stopped well:
// 1. Rates: assign zero well rates.
for (int p = 0; p < np; ++p) {
wellrates_[np*w + p] = 0.0;
}
// 2. Bhp: assign bhp equal to bhp control, if
// applicable, otherwise assign equal to
// first perforation cell pressure.
if (well_controls_get_current_type(ctrl) == BHP) {
bhp_[w] = well_controls_get_current_target( ctrl );
} else {
const int first_cell = wells->well_cells[wells->well_connpos[w]];
bhp_[w] = state.pressure()[first_cell];
}
// 3. Thp: assign thp equal to thp control, if applicable,
// otherwise assign equal to bhp value.
if (well_controls_get_current_type(ctrl) == THP) {
thp_[w] = well_controls_get_current_target( ctrl );
} else {
thp_[w] = bhp_[w];
}
} else {
// Open well:
// 1. Rates: initialize well rates to match controls
// if type is SURFACE_RATE. Otherwise, we
// cannot set the correct value here, so we
// assign a small rate with the correct
// sign so that any logic depending on that
// sign will work as expected.
if (well_controls_get_current_type(ctrl) == SURFACE_RATE) {
const double rate_target = well_controls_get_current_target(ctrl);
const double * distr = well_controls_get_current_distr( ctrl );
for (int p = 0; p < np; ++p) {
wellrates_[np*w + p] = rate_target * distr[p];
}
} else {
const double small_rate = 1e-14;
const double sign = (wells->type[w] == INJECTOR) ? 1.0 : -1.0;
for (int p = 0; p < np; ++p) {
wellrates_[np*w + p] = small_rate * sign;
}
}
// 2. Bhp: initialize bhp to be target pressure if
// bhp-controlled well, otherwise set to a
// little above or below (depending on if
// the well is an injector or producer)
// pressure in first perforation cell.
if (well_controls_get_current_type(ctrl) == BHP) {
bhp_[w] = well_controls_get_current_target( ctrl );
} else {
const int first_cell = wells->well_cells[wells->well_connpos[w]];
const double safety_factor = (wells->type[w] == INJECTOR) ? 1.01 : 0.99;
bhp_[w] = safety_factor*state.pressure()[first_cell];
}
// 3. Thp: assign thp equal to thp control, if applicable,
// otherwise assign equal to bhp value.
if (well_controls_get_current_type(ctrl) == THP) {
thp_[w] = well_controls_get_current_target( ctrl );
} else {
thp_[w] = bhp_[w];
}
}
}
// The perforation rates and perforation pressures are
// not expected to be consistent with bhp_ and wellrates_
// after init().
perfrates_.resize(wells->well_connpos[nw], 0.0);
perfpress_.resize(wells->well_connpos[nw], -1e100);
}
}
