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Fix logic related to open/shut wells initialisation.

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Atgeirr Flø Rasmussen 2014-03-14 11:27:20 +01:00
parent c0fd117103
commit a13f7b990f
1 changed files with 44 additions and 25 deletions
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69
opm/core/simulator/WellState.hpp
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@ -48,34 +48,53 @@ namespace Opm
for (int w = 0; w < nw; ++w) {
assert((wells->type[w] == INJECTOR) || (wells->type[w] == PRODUCER));
const WellControls* ctrl = wells->ctrls[w];
// 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_well_is_shut(ctrl) || (well_controls_get_current_type(ctrl) != BHP)) {
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];
} else {
bhp_[w] = well_controls_get_current_target( ctrl );
}
// 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_well_is_open( ctrl ) && (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 );
if (well_controls_well_is_shut(ctrl)) {
// Shut well:
// 1. Assign zero well rates.
for (int p = 0; p < np; ++p) {
wellrates_[np*w + p] = rate_target * distr[p];
wellrates_[np*w + p] = 0.0;
}
// 2. 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];
}
} 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;
// Open well:
// 1. 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. 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];
}
}
}