OilfieldToolsNet/opm-simulators
4
0
Fork 0
mirror of https://github.com/OPM/opm-simulators.git synced 2025-02-25 18:55:30 -06:00
Code Issues Packages Projects Releases Wiki Activity

WIP for handling the water cut ecnomic limit

Browse Source
This commit is contained in:
Kai Bao 2016-06-28 15:14:10 +02:00
parent a019460268
commit d48399ac3a
1 changed files with 66 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
opm/autodiff/StandardWells_impl.hpp
View File

@ -1326,7 +1326,73 @@ namespace Opm
} }
list_econ_limited.addShuttedWell(well_name); list_econ_limited.addShuttedWell(well_name);
// the well is closed, not need to check other limits
continue;
} }
// checking for other limits, mostly all kinds of ratio.
// TODO: not sure when more than one ratio limit is violated, what is the definition of the
// worst-offending connection
// Should not be more than one connection be closed each time
// Maybe we can compare the extent of the different violations to give a worst one.
bool water_cut_limit_violated = false;
if (econ_production_limits.onMaxWaterCut()) {
assert((*active_)[Oil]);
assert((*active_)[Water]);
const double oil_rate = well_state.wellRates()[well_number * np + pu.phase_pos[ Oil ] ];
const double water_rate = well_state.wellRates()[well_number * np + pu.phase_pos[ Water ] ];
const double liquid_rate = oil_rate + water_rate;
if (std::abs(liquid_rate) == 0.) {
continue;
}
const double water_cut = water_rate / liquid_rate;
const double max_water_cut = econ_production_limits.maxWaterCut();
if (water_cut > max_water_cut) {
water_cut_limit_violated = true;
}
}
if (econ_production_limits.workover() != WellEcon::CON) {
std::cerr << "WARNING: only CON workover over exceeding limit is supported for the moment." << std::endl;
}
const int perf_start = (i->second)[1];
const int perf_number = (i->second)[2];
std::vector<double> oil_perf_rate(perf_number);
std::vector<double> gas_perf_rate(perf_number);
std::vector<double> water_perf_rate(perf_number);
for (int perf = 0; perf < perf_number; ++perf) {
const int i_perf = perf_start + perf;
oil_perf_rate[perf] = well_state.perfPhaseRates()[i_perf * np + pu.phase_pos[ Oil ] ];
water_perf_rate[perf] = well_state.perfPhaseRates()[i_perf * np + pu.phase_pos[ Water ] ];
gas_perf_rate[perf] = well_state.perfPhaseRates()[i_perf * np + pu.phase_pos[ Gas ] ];
}
std::vector<double> water_cut_perf(perf_number);
double max_water_cut_perf = 0.0;
int worst_offending_perf = -1;
for (int perf = 0; perf < perf_number; ++perf) {
const double liquid_rate = water_perf_rate[perf] + oil_perf_rate[perf];
if (std::abs(liquid_rate) == 0.0) {
water_cut_perf[perf] = 0.0;
} else {
water_cut_perf[perf] = water_perf_rate[perf] / liquid_rate;
}
if (water_cut_perf[perf] > max_water_cut_perf) {
worst_offending_perf = perf;
max_water_cut_perf = water_cut_perf[perf];
}
}
assert((worst_offending_perf >= 0) && (worst_offending_perf <= perf_number));
const int cell_worst_offending_perf = wells_struct->well_cells[perf_start + worst_offending_perf];
list_econ_limited.addClosedConnectionsForWell(well_name, cell_worst_offending_perf);
} }
} }