OilfieldToolsNet/opm-simulators
4
0
Fork 0
mirror of https://github.com/OPM/opm-simulators.git synced 2024-12-23 07:53:29 -06:00
Code Issues Packages Projects Releases Wiki Activity

Refined well state initialization.

Browse Source 
For SURFACE_RATE controlled wells, initialize wellRates() to match.
This commit is contained in:
Atgeirr Flø Rasmussen 2013-06-02 21:58:30 +02:00
parent c280f2b0dd
commit ad4c9a47e0
1 changed files with 26 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
opm/core/simulator/WellState.hpp
View File

@ -31,31 +31,48 @@ namespace Opm
{ {
public: public:
/// Allocate and initialize if wells is non-null. /// Allocate and initialize if wells is non-null.
/// Also tries to give useful initial values to the bhp() and
/// wellRates() fields, depending on controls. The
/// perfRates() field is filled with zero, and perfPress()
/// with -1e100.
template <class State> template <class State>
void init(const Wells* wells, const State& state) void init(const Wells* wells, const State& state)
{ {
if (wells) { if (wells) {
const int nw = wells->number_of_wells; const int nw = wells->number_of_wells;
const int np = wells->number_of_phases;
bhp_.resize(nw); bhp_.resize(nw);
// Initialize bhp to be target pressure wellrates_.resize(nw * np, 0.0);
// if bhp-controlled well, otherwise set
// to pressure in first perforation cell.
for (int w = 0; w < nw; ++w) { for (int w = 0; w < nw; ++w) {
const WellControls* ctrl = wells->ctrls[w]; 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 ((ctrl->current < 0) || // SHUT if ((ctrl->current < 0) || // SHUT
(ctrl->type[ctrl->current] != BHP)) { (ctrl->type[ctrl->current] != BHP)) {
const int cell = wells->well_cells[wells->well_connpos[w]]; const int first_cell = wells->well_cells[wells->well_connpos[w]];
const double safety_factor = (wells->type[w] == INJECTOR) ? 1.01 : 0.99; const double safety_factor = (wells->type[w] == INJECTOR) ? 1.01 : 0.99;
bhp_[w] = safety_factor*state.pressure()[cell]; bhp_[w] = safety_factor*state.pressure()[first_cell];
} } else {
else {
bhp_[w] = ctrl->target[ctrl->current]; bhp_[w] = ctrl->target[ctrl->current];
} }
// Initialize well rates to match controls if type is SURFACE_RATE
if ((ctrl->current >= 0) || // open well
(ctrl->type[ctrl->current] != SURFACE_RATE)) {
const double rate_target = ctrl->target[ctrl->current];
for (int p = 0; p < np; ++p) {
const double phase_distr = ctrl->distr[np * ctrl->current + p];
wellrates_[np*w + p] = rate_target * phase_distr;
} }
}
}
// 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); perfrates_.resize(wells->well_connpos[nw], 0.0);
perfpress_.resize(wells->well_connpos[nw], -1e100); perfpress_.resize(wells->well_connpos[nw], -1e100);
wellrates_.resize(wells->well_connpos[nw] * wells->number_of_phases, 0.0);
} }
} }