/*!
* \brief Implement the temperature part of the oil PVT properties.
*/
void initFromDeck(const Deck& deck,
const EclipseState& eclState)
{
//////
// initialize the isothermal part
//////
isothermalPvt_ = new IsothermalPvt;
isothermalPvt_->initFromDeck(deck, eclState);
//////
// initialize the thermal part
//////
const auto& tables = eclState.getTableManager();
enableThermalDensity_ = deck.hasKeyword("OILDENT");
enableThermalViscosity_ = deck.hasKeyword("OILVISCT");
enableInternalEnergy_ = deck.hasKeyword("SPECHEAT");
unsigned numRegions = isothermalPvt_->numRegions();
setNumRegions(numRegions);
// viscosity
if (deck.hasKeyword("OILVISCT")) {
if (!deck.hasKeyword("VISCREF"))
throw std::runtime_error("VISCREF is required when OILVISCT is present");
const auto& oilvisctTables = tables.getOilvisctTables();
const auto& viscrefKeyword = deck.getKeyword("VISCREF");
assert(oilvisctTables.size() == numRegions);
assert(viscrefKeyword.size() == numRegions);
for (unsigned regionIdx = 0; regionIdx < numRegions; ++regionIdx) {
const auto& TCol = oilvisctTables[regionIdx].getColumn("Temperature").vectorCopy();
const auto& muCol = oilvisctTables[regionIdx].getColumn("Viscosity").vectorCopy();
oilvisctCurves_[regionIdx].setXYContainers(TCol, muCol);
const auto& viscrefRecord = viscrefKeyword.getRecord(regionIdx);
viscrefPress_[regionIdx] = viscrefRecord.getItem("REFERENCE_PRESSURE").getSIDouble(0);
viscrefRs_[regionIdx] = viscrefRecord.getItem("REFERENCE_RS").getSIDouble(0);
// temperature used to calculate the reference viscosity [K]. the
// value does not really matter if the underlying PVT object really
// is isothermal...
Scalar Tref = 273.15 + 20;
// compute the reference viscosity using the isothermal PVT object.
viscRef_[regionIdx] =
isothermalPvt_->viscosity(regionIdx,
Tref,
viscrefPress_[regionIdx],
viscrefRs_[regionIdx]);
}
}
// temperature dependence of oil density
if (enableThermalDensity_) {
const auto& oildentKeyword = deck.getKeyword("OILDENT");
assert(oildentKeyword.size() == numRegions);
for (unsigned regionIdx = 0; regionIdx < numRegions; ++regionIdx) {
const auto& oildentRecord = oildentKeyword.getRecord(regionIdx);
oildentRefTemp_[regionIdx] = oildentRecord.getItem("REFERENCE_TEMPERATURE").getSIDouble(0);
oildentCT1_[regionIdx] = oildentRecord.getItem("EXPANSION_COEFF_LINEAR").getSIDouble(0);
oildentCT2_[regionIdx] = oildentRecord.getItem("EXPANSION_COEFF_QUADRATIC").getSIDouble(0);
}
}
if (deck.hasKeyword("SPECHEAT")) {
// the specific internal energy of liquid oil. be aware that ecl only specifies the
// heat capacity (via the SPECHEAT keyword) and we need to integrate it
// ourselfs to get the internal energy
for (unsigned regionIdx = 0; regionIdx < numRegions; ++regionIdx) {
const auto& specheatTable = tables.getSpecheatTables()[regionIdx];
const auto& temperatureColumn = specheatTable.getColumn("TEMPERATURE");
const auto& cvOilColumn = specheatTable.getColumn("CV_OIL");
std::vector<double> uSamples(temperatureColumn.size());
Scalar u = temperatureColumn[0]*cvOilColumn[0];
for (size_t i = 0;; ++i) {
uSamples[i] = u;
if (i >= temperatureColumn.size() - 1)
break;
// integrate to the heat capacity from the current sampling point to the next
// one. this leads to a quadratic polynomial.
Scalar c_v0 = cvOilColumn[i];
Scalar c_v1 = cvOilColumn[i + 1];
Scalar T0 = temperatureColumn[i];
Scalar T1 = temperatureColumn[i + 1];
u += 0.5*(c_v0 + c_v1)*(T1 - T0);
}
internalEnergyCurves_[regionIdx].setXYContainers(temperatureColumn.vectorCopy(), uSamples);
}
}
}
/*!
* \brief Implement the temperature part of the gas PVT properties.
*/
void initFromDeck(const Deck& deck,
const EclipseState& eclState)
{
//////
// initialize the isothermal part
//////
isothermalPvt_ = new IsothermalPvt;
isothermalPvt_->initFromDeck(deck, eclState);
//////
// initialize the thermal part
//////
const auto& tables = eclState.getTableManager();
enableThermalDensity_ = deck.hasKeyword("GASDENT");
enableThermalViscosity_ = deck.hasKeyword("GASVISCT");
enableInternalEnergy_ = deck.hasKeyword("SPECHEAT");
unsigned numRegions = isothermalPvt_->numRegions();
setNumRegions(numRegions);
// viscosity
if (enableThermalViscosity_) {
const auto& gasvisctTables = tables.getGasvisctTables();
int gasCompIdx = deck.getKeyword("GCOMPIDX").getRecord(0).getItem("GAS_COMPONENT_INDEX").get< int >(0) - 1;
std::string gasvisctColumnName = "Viscosity"+std::to_string(static_cast<long long>(gasCompIdx));
for (unsigned regionIdx = 0; regionIdx < numRegions; ++regionIdx) {
const auto& T = gasvisctTables[regionIdx].getColumn("Temperature").vectorCopy();
const auto& mu = gasvisctTables[regionIdx].getColumn(gasvisctColumnName).vectorCopy();
gasvisctCurves_[regionIdx].setXYContainers(T, mu);
}
}
// temperature dependence of gas density
if (enableThermalDensity_) {
const auto& gasdentKeyword = deck.getKeyword("GASDENT");
assert(gasdentKeyword.size() == numRegions);
for (unsigned regionIdx = 0; regionIdx < numRegions; ++regionIdx) {
const auto& gasdentRecord = gasdentKeyword.getRecord(regionIdx);
gasdentRefTemp_[regionIdx] = gasdentRecord.getItem("REFERENCE_TEMPERATURE").getSIDouble(0);
gasdentCT1_[regionIdx] = gasdentRecord.getItem("EXPANSION_COEFF_LINEAR").getSIDouble(0);
gasdentCT2_[regionIdx] = gasdentRecord.getItem("EXPANSION_COEFF_QUADRATIC").getSIDouble(0);
}
}
if (deck.hasKeyword("SPECHEAT")) {
// the specific internal energy of gas. be aware that ecl only specifies the heat capacity
// (via the SPECHEAT keyword) and we need to integrate it ourselfs to get the
// internal energy
for (unsigned regionIdx = 0; regionIdx < numRegions; ++regionIdx) {
const auto& specHeatTable = tables.getSpecheatTables()[regionIdx];
const auto& temperatureColumn = specHeatTable.getColumn("TEMPERATURE");
const auto& cvGasColumn = specHeatTable.getColumn("CV_GAS");
std::vector<double> uSamples(temperatureColumn.size());
// the specific enthalpy of vaporization. since ECL does not seem to
// feature a proper way to specify this quantity, we use the value for
// methane. A proper model would also need to consider the enthalpy
// change due to dissolution, i.e. the enthalpies of the gas and oil
// phases should depend on the phase composition
const Scalar hVap = 480.6e3; // [J / kg]
Scalar u = temperatureColumn[0]*cvGasColumn[0] + hVap;
for (size_t i = 0;; ++i) {
uSamples[i] = u;
if (i >= temperatureColumn.size() - 1)
break;
// integrate to the heat capacity from the current sampling point to the next
// one. this leads to a quadratic polynomial.
Scalar c_v0 = cvGasColumn[i];
Scalar c_v1 = cvGasColumn[i + 1];
Scalar T0 = temperatureColumn[i];
Scalar T1 = temperatureColumn[i + 1];
u += 0.5*(c_v0 + c_v1)*(T1 - T0);
}
internalEnergyCurves_[regionIdx].setXYContainers(temperatureColumn.vectorCopy(), uSamples);
}
}
}