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Update addWellEq() to match the opm-autodiff.
This commit is contained in:
Kai Bao
parent
110dde2bb5
commit
a3efd688f4
@ -943,13 +943,16 @@ namespace detail {
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// pressure diffs computed already (once per step, not changing per iteration)
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const V& cdp = well_perforation_pressure_diffs_;
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// Extract variables for perforation cell pressures
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// and corresponding perforation well pressures.
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const ADB p_perfcell = subset(state.pressure, well_cells);
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// DUMPVAL(p_perfcell);
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// DUMPVAL(state.bhp);
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// DUMPVAL(ADB::constant(cdp));
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// Extract needed quantities for the perforation cells
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const ADB& p_perfcells = subset(state.pressure, well_cells);
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const ADB& rv_perfcells = subset(state.rv,well_cells);
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const ADB& rs_perfcells = subset(state.rs,well_cells);
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std::vector<ADB> mob_perfcells(np, ADB::null());
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std::vector<ADB> b_perfcells(np, ADB::null());
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for (int phase = 0; phase < np; ++phase) {
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mob_perfcells[phase] = subset(rq_[phase].mob,well_cells);
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b_perfcells[phase] = subset(rq_[phase].b,well_cells);
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}
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// Perforation pressure
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const ADB perfpressure = (wops_.w2p * state.bhp) + cdp;
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@ -957,167 +960,105 @@ namespace detail {
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xw.perfPress() = perfpressure_d;
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// Pressure drawdown (also used to determine direction of flow)
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const ADB drawdown = p_perfcell - perfpressure;
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const ADB drawdown = p_perfcells - perfpressure;
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// current injecting connections
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auto connInjInx = drawdown.value() < 0;
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// Compute vectors with zero and ones that
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// selects the wanted quantities.
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// injector == 1, producer == 0
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V isInj = V::Zero(nw);
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for (int w = 0; w < nw; ++w) {
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if (wells().type[w] == INJECTOR) {
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isInj[w] = 1;
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}
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}
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// // A cross-flow connection is defined as a connection which has opposite
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// // flow-direction to the well total flow
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// V isInjPerf = (wops_.w2p * isInj);
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// auto crossFlowConns = (connInjInx != isInjPerf);
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// bool allowCrossFlow = true;
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// if (not allowCrossFlow) {
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// auto closedConns = crossFlowConns;
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// for (int c = 0; c < nperf; ++c) {
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// if (closedConns[c]) {
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// Tw[c] = 0;
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// }
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// }
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// connInjInx = !closedConns;
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// }
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// TODO: not allow for crossflow
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V isInjInx = V::Zero(nperf);
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V isNotInjInx = V::Zero(nperf);
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// selects injection perforations
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V selectInjectingPerforations = V::Zero(nperf);
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// selects producing perforations
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V selectProducingPerforations = V::Zero(nperf);
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for (int c = 0; c < nperf; ++c){
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if (connInjInx[c])
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isInjInx[c] = 1;
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if (drawdown.value()[c] < 0)
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selectInjectingPerforations[c] = 1;
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else
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isNotInjInx[c] = 1;
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selectProducingPerforations[c] = 1;
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}
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// HANDLE FLOW INTO WELLBORE
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// compute phase volumerates standard conditions
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// compute phase volumetric rates at standard conditions
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std::vector<ADB> cq_ps(np, ADB::null());
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for (int phase = 0; phase < np; ++phase) {
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const ADB& wellcell_mob = subset ( rq_[phase].mob, well_cells);
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const ADB cq_p = -(isNotInjInx * Tw) * (wellcell_mob * drawdown);
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cq_ps[phase] = subset(rq_[phase].b,well_cells) * cq_p;
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const ADB cq_p = -(selectProducingPerforations * Tw) * (mob_perfcells[phase] * drawdown);
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cq_ps[phase] = b_perfcells[phase] * cq_p;
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}
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if (active_[Oil] && active_[Gas]) {
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const int oilpos = pu.phase_pos[Oil];
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const int gaspos = pu.phase_pos[Gas];
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ADB cq_psOil = cq_ps[oilpos];
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ADB cq_psGas = cq_ps[gaspos];
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cq_ps[gaspos] += subset(state.rs,well_cells) * cq_psOil;
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cq_ps[oilpos] += subset(state.rv,well_cells) * cq_psGas;
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const ADB cq_psOil = cq_ps[oilpos];
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const ADB cq_psGas = cq_ps[gaspos];
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cq_ps[gaspos] += rs_perfcells * cq_psOil;
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cq_ps[oilpos] += rv_perfcells * cq_psGas;
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}
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// phase rates at std. condtions
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std::vector<ADB> q_ps(np, ADB::null());
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for (int phase = 0; phase < np; ++phase) {
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q_ps[phase] = wops_.p2w * cq_ps[phase];
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}
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// total rates at std
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ADB qt_s = ADB::constant(V::Zero(nw), state.bhp.blockPattern());
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for (int phase = 0; phase < np; ++phase) {
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qt_s += subset(state.qs, Span(nw, 1, phase*nw));
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}
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// compute avg. and total wellbore phase volumetric rates at std. conds
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const DataBlock compi = Eigen::Map<const DataBlock>(wells().comp_frac, nw, np);
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std::vector<ADB> wbq(np, ADB::null());
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ADB wbqt = ADB::constant(V::Zero(nw), state.pressure.blockPattern());
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for (int phase = 0; phase < np; ++phase) {
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const int pos = pu.phase_pos[phase];
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wbq[phase] = (isInj * compi.col(pos)) * qt_s - q_ps[phase];
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wbqt += wbq[phase];
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}
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// DUMPVAL(wbqt);
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// check for dead wells
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aliveWells = V::Constant(nw, 1.0);
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for (int w = 0; w < nw; ++w) {
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if (wbqt.value()[w] == 0) {
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aliveWells[w] = 0.0;
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}
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}
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// compute wellbore mixture at std conds
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Selector<double> notDeadWells_selector(wbqt.value(), Selector<double>::Zero);
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std::vector<ADB> mix_s(np, ADB::null());
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for (int phase = 0; phase < np; ++phase) {
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const int pos = pu.phase_pos[phase];
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mix_s[phase] = notDeadWells_selector.select(ADB::constant(compi.col(pos)), wbq[phase]/wbqt);
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}
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// HANDLE FLOW OUT FROM WELLBORE
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// Total mobilities
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ADB mt = subset(rq_[0].mob,well_cells);
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// Using total mobilities
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ADB total_mob = mob_perfcells[0];
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for (int phase = 1; phase < np; ++phase) {
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mt += subset(rq_[phase].mob,well_cells);
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total_mob += mob_perfcells[phase];
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}
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// injection perforations total volume rates
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const ADB cqt_i = -(selectInjectingPerforations * Tw) * (total_mob * drawdown);
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// compute wellbore mixture for injecting perforations
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// The wellbore mixture depends on the inflow from the reservoar
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// and the well injection rates.
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// compute avg. and total wellbore phase volumetric rates at standard conds
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const DataBlock compi = Eigen::Map<const DataBlock>(wells().comp_frac, nw, np);
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std::vector<ADB> wbq(np, ADB::null());
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ADB wbqt = ADB::constant(V::Zero(nw));
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for (int phase = 0; phase < np; ++phase) {
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const ADB& q_ps = wops_.p2w * cq_ps[phase];
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const ADB& q_s = subset(state.qs, Span(nw, 1, phase*nw));
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Selector<double> injectingPhase_selector(q_s.value(), Selector<double>::GreaterZero);
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const int pos = pu.phase_pos[phase];
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wbq[phase] = (compi.col(pos) * injectingPhase_selector.select(q_s,ADB::constant(V::Zero(nw)))) - q_ps;
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wbqt += wbq[phase];
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}
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// DUMPVAL(ADB::constant(isInjInx));
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// DUMPVAL(ADB::constant(Tw));
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// DUMPVAL(mt);
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// DUMPVAL(drawdown);
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// injection connections total volumerates
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ADB cqt_i = -(isInjInx * Tw) * (mt * drawdown);
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// compute volume ratio between connection at standard conditions
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ADB volRat = ADB::constant(V::Zero(nperf), state.pressure.blockPattern());
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// compute wellbore mixture at standard conditions.
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Selector<double> notDeadWells_selector(wbqt.value(), Selector<double>::Zero);
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std::vector<ADB> cmix_s(np, ADB::null());
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for (int phase = 0; phase < np; ++phase) {
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cmix_s[phase] = wops_.w2p * mix_s[phase];
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const int pos = pu.phase_pos[phase];
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cmix_s[phase] = wops_.w2p * notDeadWells_selector.select(ADB::constant(compi.col(pos)), wbq[phase]/wbqt);
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}
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ADB well_rv = subset(state.rv,well_cells);
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ADB well_rs = subset(state.rs,well_cells);
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ADB d = V::Constant(nperf,1.0) - well_rv * well_rs;
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// compute volume ratio between connection at standard conditions
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ADB volumeRatio = ADB::constant(V::Zero(nperf));
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const ADB d = V::Constant(nperf,1.0) - rv_perfcells * rs_perfcells;
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for (int phase = 0; phase < np; ++phase) {
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ADB tmp = cmix_s[phase];
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if (phase == Oil && active_[Gas]) {
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const int gaspos = pu.phase_pos[Gas];
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tmp = tmp - subset(state.rv,well_cells) * cmix_s[gaspos] / d;
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tmp = tmp - rv_perfcells * cmix_s[gaspos] / d;
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}
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if (phase == Gas && active_[Oil]) {
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const int oilpos = pu.phase_pos[Oil];
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tmp = tmp - subset(state.rs,well_cells) * cmix_s[oilpos] / d;
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tmp = tmp - rs_perfcells * cmix_s[oilpos] / d;
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}
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volRat += tmp / subset(rq_[phase].b,well_cells);
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volumeRatio += tmp / b_perfcells[phase];
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}
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// DUMPVAL(cqt_i);
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// DUMPVAL(volRat);
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// injecting connections total volumerates at standard conditions
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ADB cqt_is = cqt_i/volumeRatio;
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// injecting connections total volumerates at std cond
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ADB cqt_is = cqt_i/volRat;
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// connection phase volumerates at std cond
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// connection phase volumerates at standard conditions
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std::vector<ADB> cq_s(np, ADB::null());
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for (int phase = 0; phase < np; ++phase) {
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cq_s[phase] = cq_ps[phase] + (wops_.w2p * mix_s[phase])*cqt_is;
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cq_s[phase] = cq_ps[phase] + cmix_s[phase]*cqt_is;
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}
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// DUMPVAL(mix_s[2]);
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// DUMPVAL(cq_ps[2]);
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// Add well contributions to mass balance equations
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for (int phase = 0; phase < np; ++phase) {
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residual_.material_balance_eq[phase] -= superset(cq_s[phase],well_cells,nc);
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}
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// Add well contributions to polymer mass balance equation
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if (has_polymer_) {
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const ADB mc = computeMc(state);
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@ -1125,19 +1066,27 @@ namespace detail {
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const V poly_in_perf = subset(polyin, well_cells);
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const V poly_mc_perf = subset(mc, well_cells).value();
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residual_.material_balance_eq[poly_pos_] -= superset(cq_ps[pu.phase_pos[Water]] * poly_mc_perf
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+ (wops_.w2p * mix_s[pu.phase_pos[Water]])*cqt_is*poly_in_perf,
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+ cmix_s[pu.phase_pos[Water]] * cqt_is*poly_in_perf,
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well_cells, nc);
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}
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// Add WELL EQUATIONS
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// WELL EQUATIONS
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ADB qs = state.qs;
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for (int phase = 0; phase < np; ++phase) {
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qs -= superset(wops_.p2w * cq_s[phase], Span(nw, 1, phase*nw), nw*np);
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}
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// check for dead wells (used in the well controll equations)
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aliveWells = V::Constant(nw, 1.0);
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for (int w = 0; w < nw; ++w) {
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if (wbqt.value()[w] == 0) {
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aliveWells[w] = 0.0;
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}
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}
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// Update the perforation phase rates (used to calculate the pressure drop in the wellbore)
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V cq = superset(cq_s[0].value(), Span(nperf, np, 0), nperf*np);
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for (int phase = 1; phase < np; ++phase) {
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cq += superset(cq_s[phase].value(), Span(nperf, np, phase), nperf*np);
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@ -1228,6 +1177,8 @@ namespace detail {
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} // namespace detail
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template<class T>
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void FullyImplicitBlackoilPolymerSolver<T>::updateWellControls(WellStateFullyImplicitBlackoil& xw) const
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{
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