void computeMaxDp(std::map<std::pair<int, int>, double>& maxDp,
const DeckConstPtr& deck,
EclipseStateConstPtr eclipseState,
const Grid& grid,
const BlackoilState& initialState,
const BlackoilPropertiesFromDeck& props,
const double gravity)
{
const PhaseUsage& pu = props.phaseUsage();
const auto& eqlnum = eclipseState->get3DProperties().getIntGridProperty("EQLNUM");
const auto& eqlnumData = eqlnum.getData();
const int numPhases = initialState.numPhases();
const int numCells = UgGridHelpers::numCells(grid);
const int numPvtRegions = deck->getKeyword("TABDIMS").getRecord(0).getItem("NTPVT").get< int >(0);
// retrieve the minimum (residual!?) and the maximum saturations for all cells
std::vector<double> minSat(numPhases*numCells);
std::vector<double> maxSat(numPhases*numCells);
std::vector<int> allCells(numCells);
for (int cellIdx = 0; cellIdx < numCells; ++cellIdx) {
allCells[cellIdx] = cellIdx;
}
props.satRange(numCells, allCells.data(), minSat.data(), maxSat.data());
// retrieve the surface densities
std::vector<std::vector<double> > surfaceDensity(numPvtRegions);
const auto& densityKw = deck->getKeyword("DENSITY");
for (int regionIdx = 0; regionIdx < numPvtRegions; ++regionIdx) {
surfaceDensity[regionIdx].resize(numPhases);
if (pu.phase_used[BlackoilPhases::Aqua]) {
const int wpos = pu.phase_pos[BlackoilPhases::Aqua];
surfaceDensity[regionIdx][wpos] =
densityKw.getRecord(regionIdx).getItem("WATER").getSIDouble(0);
}
if (pu.phase_used[BlackoilPhases::Liquid]) {
const int opos = pu.phase_pos[BlackoilPhases::Liquid];
surfaceDensity[regionIdx][opos] =
densityKw.getRecord(regionIdx).getItem("OIL").getSIDouble(0);
}
if (pu.phase_used[BlackoilPhases::Vapour]) {
const int gpos = pu.phase_pos[BlackoilPhases::Vapour];
surfaceDensity[regionIdx][gpos] =
densityKw.getRecord(regionIdx).getItem("GAS").getSIDouble(0);
}
}
// retrieve the PVT region of each cell. note that we need c++ instead of
// Fortran indices.
const int* gc = UgGridHelpers::globalCell(grid);
std::vector<int> pvtRegion(numCells);
const auto& cartPvtRegion = eclipseState->get3DProperties().getIntGridProperty("PVTNUM").getData();
for (int cellIdx = 0; cellIdx < numCells; ++cellIdx) {
const int cartCellIdx = gc ? gc[cellIdx] : cellIdx;
pvtRegion[cellIdx] = std::max(0, cartPvtRegion[cartCellIdx] - 1);
}
// compute the initial "phase presence" of each cell (required to calculate
// the inverse formation volume factors
std::vector<PhasePresence> cond(numCells);
for (int cellIdx = 0; cellIdx < numCells; ++cellIdx) {
if (pu.phase_used[BlackoilPhases::Aqua]) {
const double sw = initialState.saturation()[numPhases*cellIdx + pu.phase_pos[BlackoilPhases::Aqua]];
if (sw > 0.0) {
cond[cellIdx].setFreeWater();
}
}
if (pu.phase_used[BlackoilPhases::Liquid]) {
const double so = initialState.saturation()[numPhases*cellIdx + pu.phase_pos[BlackoilPhases::Liquid]];
if (so > 0.0) {
cond[cellIdx].setFreeOil();
}
}
if (pu.phase_used[BlackoilPhases::Vapour]) {
const double sg = initialState.saturation()[numPhases*cellIdx + pu.phase_pos[BlackoilPhases::Vapour]];
if (sg > 0.0) {
cond[cellIdx].setFreeGas();
}
}
}
// calculate the initial fluid densities for the gravity correction.
std::vector<std::vector<double>> rho(numPhases);
for (int phaseIdx = 0; phaseIdx < numPhases; ++phaseIdx) {
rho[phaseIdx].resize(numCells);
}
// compute the capillary pressures of the active phases
std::vector<double> capPress(numCells*numPhases);
std::vector<int> cellIdxArray(numCells);
for (int cellIdx = 0; cellIdx < numCells; ++ cellIdx) {
cellIdxArray[cellIdx] = cellIdx;
}
props.capPress(numCells, initialState.saturation().data(), cellIdxArray.data(), capPress.data(), NULL);
// compute the absolute pressure of each active phase: for some reason, E100
// defines the capillary pressure for the water phase as p_o - p_w while it
// uses p_g - p_o for the gas phase. (it would be more consistent to use the
// oil pressure as reference for both the other phases.) probably this is
// done to always have a positive number for the capillary pressure (as long
// as the medium is hydrophilic)
std::vector<std::vector<double> > phasePressure(numPhases);
for (int phaseIdx = 0; phaseIdx < numPhases; ++phaseIdx) {
phasePressure[phaseIdx].resize(numCells);
}
for (int cellIdx = 0; cellIdx < numCells; ++ cellIdx) {
// we currently hard-code the oil phase as the reference phase!
assert(pu.phase_used[BlackoilPhases::Liquid]);
const int opos = pu.phase_pos[BlackoilPhases::Liquid];
phasePressure[opos][cellIdx] = initialState.pressure()[cellIdx];
if (pu.phase_used[BlackoilPhases::Aqua]) {
const int wpos = pu.phase_pos[BlackoilPhases::Aqua];
phasePressure[wpos][cellIdx] =
initialState.pressure()[cellIdx]
+ (capPress[cellIdx*numPhases + opos] - capPress[cellIdx*numPhases + wpos]);
}
if (pu.phase_used[BlackoilPhases::Vapour]) {
const int gpos = pu.phase_pos[BlackoilPhases::Vapour];
phasePressure[gpos][cellIdx] =
initialState.pressure()[cellIdx]
+ (capPress[cellIdx*numPhases + gpos] - capPress[cellIdx*numPhases + opos]);
}
}
// calculate the densities of the active phases for each cell
if (pu.phase_used[BlackoilPhases::Aqua]) {
const int wpos = pu.phase_pos[BlackoilPhases::Aqua];
const auto& pvtw = props.waterPvt();
for (int cellIdx = 0; cellIdx < numCells; ++ cellIdx) {
int pvtRegionIdx = pvtRegion[cellIdx];
double T = initialState.temperature()[cellIdx];
double p = phasePressure[wpos][cellIdx];
double b = pvtw.inverseFormationVolumeFactor(pvtRegionIdx, T, p);
rho[wpos][cellIdx] = surfaceDensity[pvtRegionIdx][wpos]*b;
}
}
if (pu.phase_used[BlackoilPhases::Liquid]) {
const int opos = pu.phase_pos[BlackoilPhases::Liquid];
const auto& pvto = props.oilPvt();
for (int cellIdx = 0; cellIdx < numCells; ++ cellIdx) {
int pvtRegionIdx = pvtRegion[cellIdx];
double T = initialState.temperature()[cellIdx];
double p = phasePressure[opos][cellIdx];
double Rs = initialState.gasoilratio()[cellIdx];
double RsSat = pvto.saturatedGasDissolutionFactor(pvtRegionIdx, T, p);
double b;
if (Rs >= RsSat) {
b = pvto.saturatedInverseFormationVolumeFactor(pvtRegionIdx, T, p);
}
else {
b = pvto.inverseFormationVolumeFactor(pvtRegionIdx, T, p, Rs);
}
rho[opos][cellIdx] = surfaceDensity[pvtRegionIdx][opos]*b;
if (pu.phase_used[BlackoilPhases::Vapour]) {
int gpos = pu.phase_pos[BlackoilPhases::Vapour];
rho[opos][cellIdx] += surfaceDensity[pvtRegionIdx][gpos]*Rs*b;
}
}
}
if (pu.phase_used[BlackoilPhases::Vapour]) {
const int gpos = pu.phase_pos[BlackoilPhases::Vapour];
const auto& pvtg = props.gasPvt();
for (int cellIdx = 0; cellIdx < numCells; ++ cellIdx) {
int pvtRegionIdx = pvtRegion[cellIdx];
double T = initialState.temperature()[cellIdx];
double p = phasePressure[gpos][cellIdx];
double Rv = initialState.rv()[cellIdx];
double RvSat = pvtg.saturatedOilVaporizationFactor(pvtRegionIdx, T, p);
double b;
if (Rv >= RvSat) {
b = pvtg.saturatedInverseFormationVolumeFactor(pvtRegionIdx, T, p);
}
else {
b = pvtg.inverseFormationVolumeFactor(pvtRegionIdx, T, p, Rv);
}
rho[gpos][cellIdx] = surfaceDensity[pvtRegionIdx][gpos]*b;
if (pu.phase_used[BlackoilPhases::Liquid]) {
int opos = pu.phase_pos[BlackoilPhases::Liquid];
rho[gpos][cellIdx] += surfaceDensity[pvtRegionIdx][opos]*Rv*b;
}
}
}
// Calculate the maximum pressure potential difference between all PVT region
// transitions of the initial solution.
const int num_faces = UgGridHelpers::numFaces(grid);
const auto& fc = UgGridHelpers::faceCells(grid);
for (int face = 0; face < num_faces; ++face) {
const int c1 = fc(face, 0);
const int c2 = fc(face, 1);
if (c1 < 0 || c2 < 0) {
// Boundary face, skip this.
continue;
}
const int gc1 = (gc == 0) ? c1 : gc[c1];
const int gc2 = (gc == 0) ? c2 : gc[c2];
const int eq1 = eqlnumData[gc1];
const int eq2 = eqlnumData[gc2];
if (eq1 == eq2) {
// not an equilibration region boundary. skip this.
continue;
}
// update the maximum pressure potential difference between the two
// regions
const auto barrierId = std::make_pair(std::min(eq1, eq2), std::max(eq1, eq2));
if (maxDp.count(barrierId) == 0) {
maxDp[barrierId] = 0.0;
}
for (int phaseIdx = 0; phaseIdx < numPhases; ++phaseIdx) {
const double z1 = UgGridHelpers::cellCenterDepth(grid, c1);
const double z2 = UgGridHelpers::cellCenterDepth(grid, c2);
const double rhoAvg = (rho[phaseIdx][c1] + rho[phaseIdx][c2])/2;
const double s1 = initialState.saturation()[numPhases*c1 + phaseIdx];
const double s2 = initialState.saturation()[numPhases*c2 + phaseIdx];
const double sResid1 = minSat[numPhases*c1 + phaseIdx];
const double sResid2 = minSat[numPhases*c2 + phaseIdx];
// compute gravity corrected pressure potentials at the average depth
const double p1 = phasePressure[phaseIdx][c1];
const double p2 = phasePressure[phaseIdx][c2] + rhoAvg*gravity*(z1 - z2);
if ((p1 > p2 && s1 > sResid1) || (p2 > p1 && s2 > sResid2))
maxDp[barrierId] = std::max(maxDp[barrierId], std::abs(p1 - p2));
}
}
}
