mirror of
https://github.com/OPM/opm-simulators.git
synced 2025-02-25 18:55:30 -06:00
9972dae32a
implement wells(), localWellsActive() and wellsActive() for the BlackoilModelBase and its derived classed.
1011 lines
45 KiB
C++
1011 lines
45 KiB
C++
/*
|
|
Copyright 2015 IRIS AS
|
|
|
|
This file is part of the Open Porous Media project (OPM).
|
|
|
|
OPM is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
OPM is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OPM. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef OPM_BLACKOILSOLVENTMODEL_IMPL_HEADER_INCLUDED
|
|
#define OPM_BLACKOILSOLVENTMODEL_IMPL_HEADER_INCLUDED
|
|
|
|
#include <opm/autodiff/BlackoilSolventModel.hpp>
|
|
|
|
#include <opm/autodiff/AutoDiffBlock.hpp>
|
|
#include <opm/autodiff/AutoDiffHelpers.hpp>
|
|
#include <opm/autodiff/GridHelpers.hpp>
|
|
#include <opm/autodiff/BlackoilPropsAdInterface.hpp>
|
|
#include <opm/autodiff/GeoProps.hpp>
|
|
#include <opm/autodiff/WellDensitySegmented.hpp>
|
|
|
|
#include <opm/core/grid.h>
|
|
#include <opm/core/linalg/LinearSolverInterface.hpp>
|
|
#include <opm/core/linalg/ParallelIstlInformation.hpp>
|
|
#include <opm/core/props/rock/RockCompressibility.hpp>
|
|
#include <opm/common/ErrorMacros.hpp>
|
|
#include <opm/common/Exceptions.hpp>
|
|
#include <opm/core/utility/Units.hpp>
|
|
#include <opm/core/well_controls.h>
|
|
#include <opm/core/utility/parameters/ParameterGroup.hpp>
|
|
|
|
#include <cassert>
|
|
#include <cmath>
|
|
#include <iostream>
|
|
#include <iomanip>
|
|
#include <limits>
|
|
|
|
namespace Opm {
|
|
|
|
|
|
|
|
namespace detail {
|
|
|
|
template <class PU>
|
|
int solventPos(const PU& pu)
|
|
{
|
|
const int maxnp = Opm::BlackoilPhases::MaxNumPhases;
|
|
int pos = 0;
|
|
for (int phase = 0; phase < maxnp; ++phase) {
|
|
if (pu.phase_used[phase]) {
|
|
pos++;
|
|
}
|
|
}
|
|
|
|
return pos;
|
|
}
|
|
|
|
} // namespace detail
|
|
|
|
|
|
|
|
template <class Grid>
|
|
BlackoilSolventModel<Grid>::BlackoilSolventModel(const typename Base::ModelParameters& param,
|
|
const Grid& grid,
|
|
const BlackoilPropsAdInterface& fluid,
|
|
const DerivedGeology& geo,
|
|
const RockCompressibility* rock_comp_props,
|
|
const SolventPropsAdFromDeck& solvent_props,
|
|
const Wells* wells_arg,
|
|
const NewtonIterationBlackoilInterface& linsolver,
|
|
const EclipseStateConstPtr eclState,
|
|
const bool has_disgas,
|
|
const bool has_vapoil,
|
|
const bool terminal_output,
|
|
const bool has_solvent,
|
|
const bool is_miscible)
|
|
: Base(param, grid, fluid, geo, rock_comp_props, wells_arg, linsolver,
|
|
eclState, has_disgas, has_vapoil, terminal_output),
|
|
has_solvent_(has_solvent),
|
|
solvent_pos_(detail::solventPos(fluid.phaseUsage())),
|
|
solvent_props_(solvent_props),
|
|
is_miscible_(is_miscible)
|
|
|
|
{
|
|
if (has_solvent_) {
|
|
|
|
// If deck has solvent, residual_ should contain solvent equation.
|
|
rq_.resize(fluid_.numPhases() + 1);
|
|
residual_.material_balance_eq.resize(fluid_.numPhases() + 1, ADB::null());
|
|
Base::material_name_.push_back("Solvent");
|
|
assert(solvent_pos_ == fluid_.numPhases());
|
|
if (has_vapoil_) {
|
|
OPM_THROW(std::runtime_error, "Solvent option only works with dead gas\n");
|
|
}
|
|
|
|
residual_.matbalscale.resize(fluid_.numPhases() + 1, 0.0031); // use the same as gas
|
|
}
|
|
if (is_miscible_) {
|
|
mu_eff_.resize(fluid_.numPhases() + 1, ADB::null());
|
|
b_eff_.resize(fluid_.numPhases() + 1, ADB::null());
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template <class Grid>
|
|
void
|
|
BlackoilSolventModel<Grid>::makeConstantState(SolutionState& state) const
|
|
{
|
|
Base::makeConstantState(state);
|
|
state.solvent_saturation = ADB::constant(state.solvent_saturation.value());
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template <class Grid>
|
|
std::vector<V>
|
|
BlackoilSolventModel<Grid>::variableStateInitials(const ReservoirState& x,
|
|
const WellState& xw) const
|
|
{
|
|
std::vector<V> vars0 = Base::variableStateInitials(x, xw);
|
|
assert(int(vars0.size()) == fluid_.numPhases() + 2);
|
|
|
|
// Initial solvent concentration.
|
|
if (has_solvent_) {
|
|
const auto& solvent_saturation = x.getCellData( BlackoilSolventState::SSOL );
|
|
const int nc = solvent_saturation.size();
|
|
const V ss = Eigen::Map<const V>(solvent_saturation.data() , nc);
|
|
|
|
// This is some insanely detailed flickety flackety code;
|
|
// Solvent belongs after other reservoir vars but before well vars.
|
|
auto solvent_pos = vars0.begin() + fluid_.numPhases();
|
|
assert (not solvent_saturation.empty());
|
|
assert(solvent_pos == vars0.end() - 2);
|
|
vars0.insert(solvent_pos, ss);
|
|
}
|
|
return vars0;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template <class Grid>
|
|
std::vector<int>
|
|
BlackoilSolventModel<Grid>::variableStateIndices() const
|
|
{
|
|
std::vector<int> ind = Base::variableStateIndices();
|
|
assert(ind.size() == 5);
|
|
if (has_solvent_) {
|
|
ind.resize(6);
|
|
// Solvent belongs after other reservoir vars but before well vars.
|
|
ind[Solvent] = fluid_.numPhases();
|
|
// Solvent is pushing back the well vars.
|
|
++ind[Qs];
|
|
++ind[Bhp];
|
|
}
|
|
return ind;
|
|
}
|
|
|
|
|
|
|
|
|
|
template <class Grid>
|
|
typename BlackoilSolventModel<Grid>::SolutionState
|
|
BlackoilSolventModel<Grid>::variableStateExtractVars(const ReservoirState& x,
|
|
const std::vector<int>& indices,
|
|
std::vector<ADB>& vars) const
|
|
{
|
|
// This is more or less a copy of the base class. Refactoring is needed in the base class
|
|
// to avoid unnecessary copying.
|
|
|
|
//using namespace Opm::AutoDiffGrid;
|
|
const int nc = Opm::AutoDiffGrid::numCells(grid_);
|
|
const Opm::PhaseUsage pu = fluid_.phaseUsage();
|
|
|
|
SolutionState state(fluid_.numPhases());
|
|
|
|
// Pressure.
|
|
state.pressure = std::move(vars[indices[Pressure]]);
|
|
|
|
// Temperature cannot be a variable at this time (only constant).
|
|
const V temp = Eigen::Map<const V>(& x.temperature()[0], x.temperature().size());
|
|
state.temperature = ADB::constant(temp);
|
|
|
|
// Saturations
|
|
{
|
|
ADB so = ADB::constant(V::Ones(nc, 1));
|
|
|
|
if (active_[ Water ]) {
|
|
state.saturation[pu.phase_pos[ Water ]] = std::move(vars[indices[Sw]]);
|
|
const ADB& sw = state.saturation[pu.phase_pos[ Water ]];
|
|
so -= sw;
|
|
}
|
|
if (has_solvent_) {
|
|
state.solvent_saturation = std::move(vars[indices[Solvent]]);
|
|
so -= state.solvent_saturation;
|
|
}
|
|
|
|
if (active_[ Gas ]) {
|
|
// Define Sg Rs and Rv in terms of xvar.
|
|
// Xvar is only defined if gas phase is active
|
|
const ADB& xvar = vars[indices[Xvar]];
|
|
ADB& sg = state.saturation[ pu.phase_pos[ Gas ] ];
|
|
sg = Base::isSg_*xvar + Base::isRv_*so;
|
|
so -= sg;
|
|
|
|
if (active_[ Oil ]) {
|
|
// RS and RV is only defined if both oil and gas phase are active.
|
|
state.canonical_phase_pressures = computePressures(state.pressure, state.saturation[pu.phase_pos[ Water ]], so, sg, state.solvent_saturation);
|
|
const ADB rsSat = fluidRsSat(state.canonical_phase_pressures[ Oil ], so , cells_);
|
|
if (has_disgas_) {
|
|
state.rs = (1-Base::isRs_)*rsSat + Base::isRs_*xvar;
|
|
} else {
|
|
state.rs = rsSat;
|
|
}
|
|
const ADB rvSat = fluidRvSat(state.canonical_phase_pressures[ Gas ], so , cells_);
|
|
if (has_vapoil_) {
|
|
state.rv = (1-Base::isRv_)*rvSat + Base::isRv_*xvar;
|
|
} else {
|
|
state.rv = rvSat;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (active_[ Oil ]) {
|
|
// Note that so is never a primary variable.
|
|
state.saturation[pu.phase_pos[ Oil ]] = std::move(so);
|
|
}
|
|
}
|
|
// wells
|
|
Base::variableStateExtractWellsVars(indices, vars, state);
|
|
return state;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template <class Grid>
|
|
void
|
|
BlackoilSolventModel<Grid>::computeAccum(const SolutionState& state,
|
|
const int aix )
|
|
{
|
|
|
|
if (is_miscible_) {
|
|
computeEffectiveProperties(state);
|
|
}
|
|
Base::computeAccum(state, aix);
|
|
|
|
// Compute accumulation of the solvent
|
|
if (has_solvent_) {
|
|
const ADB& press = state.pressure;
|
|
const ADB& ss = state.solvent_saturation;
|
|
const ADB pv_mult = poroMult(press); // also computed in Base::computeAccum, could be optimized.
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
|
|
const ADB& pg = state.canonical_phase_pressures[pu.phase_pos[Gas]];
|
|
const std::vector<PhasePresence>& cond = phaseCondition();
|
|
rq_[solvent_pos_].b = fluidReciprocFVF(Solvent, pg, state.temperature, state.rs, state.rv,cond);
|
|
rq_[solvent_pos_].accum[aix] = pv_mult * rq_[solvent_pos_].b * ss;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template <class Grid>
|
|
void
|
|
BlackoilSolventModel<Grid>::
|
|
assembleMassBalanceEq(const SolutionState& state)
|
|
{
|
|
|
|
Base::assembleMassBalanceEq(state);
|
|
|
|
if (has_solvent_) {
|
|
residual_.material_balance_eq[ solvent_pos_ ] =
|
|
pvdt_ * (rq_[solvent_pos_].accum[1] - rq_[solvent_pos_].accum[0])
|
|
+ ops_.div*rq_[solvent_pos_].mflux;
|
|
}
|
|
|
|
}
|
|
|
|
template <class Grid>
|
|
void
|
|
BlackoilSolventModel<Grid>::updateEquationsScaling()
|
|
{
|
|
Base::updateEquationsScaling();
|
|
assert(MaxNumPhases + 1 == residual_.matbalscale.size());
|
|
if (has_solvent_) {
|
|
const ADB& temp_b = rq_[solvent_pos_].b;
|
|
ADB::V B = 1. / temp_b.value();
|
|
#if HAVE_MPI
|
|
if ( linsolver_.parallelInformation().type() == typeid(ParallelISTLInformation) )
|
|
{
|
|
const ParallelISTLInformation& real_info =
|
|
boost::any_cast<const ParallelISTLInformation&>(linsolver_.parallelInformation());
|
|
double B_global_sum = 0;
|
|
real_info.computeReduction(B, Reduction::makeGlobalSumFunctor<double>(), B_global_sum);
|
|
residual_.matbalscale[solvent_pos_] = B_global_sum / Base::global_nc_;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
residual_.matbalscale[solvent_pos_] = B.mean();
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class Grid>
|
|
void BlackoilSolventModel<Grid>::addWellContributionToMassBalanceEq(const std::vector<ADB>& cq_s,
|
|
const SolutionState& state,
|
|
WellState& xw)
|
|
|
|
{
|
|
|
|
// Add well contributions to solvent mass balance equation
|
|
|
|
Base::addWellContributionToMassBalanceEq(cq_s, state, xw);
|
|
|
|
if (has_solvent_) {
|
|
const int nperf = wells().well_connpos[wells().number_of_wells];
|
|
const int nc = Opm::AutoDiffGrid::numCells(grid_);
|
|
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
const ADB zero = ADB::constant(V::Zero(nc));
|
|
const ADB& ss = state.solvent_saturation;
|
|
const ADB& sg = (active_[ Gas ]
|
|
? state.saturation[ pu.phase_pos[ Gas ] ]
|
|
: zero);
|
|
|
|
const std::vector<int> well_cells(wells().well_cells, wells().well_cells + nperf);
|
|
Selector<double> zero_selector(ss.value() + sg.value(), Selector<double>::Zero);
|
|
ADB F_solvent = subset(zero_selector.select(ss, ss / (ss + sg)),well_cells);
|
|
|
|
const int nw = wells().number_of_wells;
|
|
V injectedSolventFraction = Eigen::Map<const V>(&xw.solventFraction()[0], nperf);
|
|
|
|
V isProducer = V::Zero(nperf);
|
|
V ones = V::Constant(nperf,1.0);
|
|
for (int w = 0; w < nw; ++w) {
|
|
if(wells().type[w] == PRODUCER) {
|
|
for (int perf = wells().well_connpos[w]; perf < wells().well_connpos[w+1]; ++perf) {
|
|
isProducer[perf] = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
const ADB& rs_perfcells = subset(state.rs, well_cells);
|
|
int gas_pos = fluid_.phaseUsage().phase_pos[Gas];
|
|
int oil_pos = fluid_.phaseUsage().phase_pos[Oil];
|
|
// remove contribution from the dissolved gas.
|
|
// TODO compensate for gas in the oil phase
|
|
assert(!has_vapoil_);
|
|
const ADB cq_s_solvent = (isProducer * F_solvent + (ones - isProducer) * injectedSolventFraction) * (cq_s[gas_pos] - rs_perfcells * cq_s[oil_pos]);
|
|
|
|
// Solvent contribution to the mass balance equation is given as a fraction
|
|
// of the gas contribution.
|
|
residual_.material_balance_eq[solvent_pos_] -= superset(cq_s_solvent, well_cells, nc);
|
|
|
|
// The gas contribution must be reduced accordingly for the total contribution to be
|
|
// the same.
|
|
residual_.material_balance_eq[gas_pos] += superset(cq_s_solvent, well_cells, nc);
|
|
|
|
}
|
|
}
|
|
|
|
template <class Grid>
|
|
void BlackoilSolventModel<Grid>::computePropertiesForWellConnectionPressures(const SolutionState& state,
|
|
const WellState& xw,
|
|
std::vector<double>& b_perf,
|
|
std::vector<double>& rsmax_perf,
|
|
std::vector<double>& rvmax_perf,
|
|
std::vector<double>& surf_dens_perf)
|
|
{
|
|
using namespace Opm::AutoDiffGrid;
|
|
// 1. Compute properties required by computeConnectionPressureDelta().
|
|
// Note that some of the complexity of this part is due to the function
|
|
// taking std::vector<double> arguments, and not Eigen objects.
|
|
const int nperf = wells().well_connpos[wells().number_of_wells];
|
|
const int nw = wells().number_of_wells;
|
|
const std::vector<int> well_cells(wells().well_cells, wells().well_cells + nperf);
|
|
|
|
// Compute the average pressure in each well block
|
|
const V perf_press = Eigen::Map<const V>(xw.perfPress().data(), nperf);
|
|
V avg_press = perf_press*0;
|
|
for (int w = 0; w < nw; ++w) {
|
|
for (int perf = wells().well_connpos[w]; perf < wells().well_connpos[w+1]; ++perf) {
|
|
const double p_above = perf == wells().well_connpos[w] ? state.bhp.value()[w] : perf_press[perf - 1];
|
|
const double p_avg = (perf_press[perf] + p_above)/2;
|
|
avg_press[perf] = p_avg;
|
|
}
|
|
}
|
|
|
|
// Use cell values for the temperature as the wells don't knows its temperature yet.
|
|
const ADB perf_temp = subset(state.temperature, well_cells);
|
|
|
|
// Compute b, rsmax, rvmax values for perforations.
|
|
// Evaluate the properties using average well block pressures
|
|
// and cell values for rs, rv, phase condition and temperature.
|
|
const ADB avg_press_ad = ADB::constant(avg_press);
|
|
std::vector<PhasePresence> perf_cond(nperf);
|
|
const std::vector<PhasePresence>& pc = phaseCondition();
|
|
for (int perf = 0; perf < nperf; ++perf) {
|
|
perf_cond[perf] = pc[well_cells[perf]];
|
|
}
|
|
|
|
const PhaseUsage& pu = fluid_.phaseUsage();
|
|
DataBlock b(nperf, pu.num_phases);
|
|
|
|
const V bw = fluid_.bWat(avg_press_ad, perf_temp, well_cells).value();
|
|
if (pu.phase_used[BlackoilPhases::Aqua]) {
|
|
b.col(pu.phase_pos[BlackoilPhases::Aqua]) = bw;
|
|
}
|
|
|
|
assert(active_[Oil]);
|
|
assert(active_[Gas]);
|
|
const ADB perf_rv = subset(state.rv, well_cells);
|
|
const ADB perf_rs = subset(state.rs, well_cells);
|
|
const V perf_so = subset(state.saturation[pu.phase_pos[Oil]].value(), well_cells);
|
|
if (pu.phase_used[BlackoilPhases::Liquid]) {
|
|
const V bo = fluid_.bOil(avg_press_ad, perf_temp, perf_rs, perf_cond, well_cells).value();
|
|
//const V bo_eff = subset(rq_[pu.phase_pos[Oil] ].b , well_cells).value();
|
|
b.col(pu.phase_pos[BlackoilPhases::Liquid]) = bo;
|
|
const V rssat = fluidRsSat(avg_press, perf_so, well_cells);
|
|
rsmax_perf.assign(rssat.data(), rssat.data() + nperf);
|
|
} else {
|
|
rsmax_perf.assign(0.0, nperf);
|
|
}
|
|
V surf_dens_copy = superset(fluid_.surfaceDensity(0, well_cells), Span(nperf, pu.num_phases, 0), nperf*pu.num_phases);
|
|
for (int phase = 1; phase < pu.num_phases; ++phase) {
|
|
if ( phase == pu.phase_pos[BlackoilPhases::Vapour]) {
|
|
continue; // the gas surface density is added after the solvent is accounted for.
|
|
}
|
|
surf_dens_copy += superset(fluid_.surfaceDensity(phase, well_cells), Span(nperf, pu.num_phases, phase), nperf*pu.num_phases);
|
|
}
|
|
|
|
if (pu.phase_used[BlackoilPhases::Vapour]) {
|
|
// Unclear wether the effective or the pure values should be used for the wells
|
|
// the current usage of unmodified properties values gives best match.
|
|
//V bg_eff = subset(rq_[pu.phase_pos[Gas]].b,well_cells).value();
|
|
V bg = fluid_.bGas(avg_press_ad, perf_temp, perf_rv, perf_cond, well_cells).value();
|
|
V rhog = fluid_.surfaceDensity(pu.phase_pos[BlackoilPhases::Vapour], well_cells);
|
|
if (has_solvent_) {
|
|
|
|
const V bs = solvent_props_.bSolvent(avg_press_ad,well_cells).value();
|
|
//const V bs_eff = subset(rq_[solvent_pos_].b,well_cells).value();
|
|
|
|
// A weighted sum of the b-factors of gas and solvent are used.
|
|
const int nc = Opm::AutoDiffGrid::numCells(grid_);
|
|
|
|
const ADB zero = ADB::constant(V::Zero(nc));
|
|
const ADB& ss = state.solvent_saturation;
|
|
const ADB& sg = (active_[ Gas ]
|
|
? state.saturation[ pu.phase_pos[ Gas ] ]
|
|
: zero);
|
|
|
|
Selector<double> zero_selector(ss.value() + sg.value(), Selector<double>::Zero);
|
|
V F_solvent = subset(zero_selector.select(ss, ss / (ss + sg)),well_cells).value();
|
|
|
|
V injectedSolventFraction = Eigen::Map<const V>(&xw.solventFraction()[0], nperf);
|
|
|
|
V isProducer = V::Zero(nperf);
|
|
V ones = V::Constant(nperf,1.0);
|
|
for (int w = 0; w < nw; ++w) {
|
|
if(wells().type[w] == PRODUCER) {
|
|
for (int perf = wells().well_connpos[w]; perf < wells().well_connpos[w+1]; ++perf) {
|
|
isProducer[perf] = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
F_solvent = isProducer * F_solvent + (ones - isProducer) * injectedSolventFraction;
|
|
|
|
bg = bg * (ones - F_solvent);
|
|
bg = bg + F_solvent * bs;
|
|
|
|
const V& rhos = solvent_props_.solventSurfaceDensity(well_cells);
|
|
rhog = ( (ones - F_solvent) * rhog ) + (F_solvent * rhos);
|
|
}
|
|
b.col(pu.phase_pos[BlackoilPhases::Vapour]) = bg;
|
|
surf_dens_copy += superset(rhog, Span(nperf, pu.num_phases, pu.phase_pos[BlackoilPhases::Vapour]), nperf*pu.num_phases);
|
|
|
|
const V rvsat = fluidRvSat(avg_press, perf_so, well_cells);
|
|
rvmax_perf.assign(rvsat.data(), rvsat.data() + nperf);
|
|
} else {
|
|
rvmax_perf.assign(0.0, nperf);
|
|
}
|
|
|
|
// b and surf_dens_perf is row major, so can just copy data.
|
|
b_perf.assign(b.data(), b.data() + nperf * pu.num_phases);
|
|
surf_dens_perf.assign(surf_dens_copy.data(), surf_dens_copy.data() + nperf * pu.num_phases);
|
|
}
|
|
|
|
|
|
|
|
|
|
template <class Grid>
|
|
void BlackoilSolventModel<Grid>::updateState(const V& dx,
|
|
ReservoirState& reservoir_state,
|
|
WellState& well_state)
|
|
{
|
|
|
|
if (has_solvent_) {
|
|
// Extract solvent change.
|
|
const int np = fluid_.numPhases();
|
|
const int nc = Opm::AutoDiffGrid::numCells(grid_);
|
|
const V zero = V::Zero(nc);
|
|
const int solvent_start = nc * np;
|
|
const V dss = subset(dx, Span(nc, 1, solvent_start));
|
|
|
|
// Create new dx with the dss part deleted.
|
|
V modified_dx = V::Zero(dx.size() - nc);
|
|
modified_dx.head(solvent_start) = dx.head(solvent_start);
|
|
const int tail_len = dx.size() - solvent_start - nc;
|
|
modified_dx.tail(tail_len) = dx.tail(tail_len);
|
|
|
|
// Call base version.
|
|
Base::updateState(modified_dx, reservoir_state, well_state);
|
|
|
|
// Update solvent.
|
|
auto& solvent_saturation = reservoir_state.getCellData( reservoir_state.SSOL );
|
|
const V ss_old = Eigen::Map<const V>(&solvent_saturation[0], nc, 1);
|
|
const V ss = (ss_old - dss).max(zero);
|
|
std::copy(&ss[0], &ss[0] + nc, solvent_saturation.begin());
|
|
|
|
// adjust oil saturation
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
const int oilpos = pu.phase_pos[ Oil ];
|
|
for (int c = 0; c < nc; ++c) {
|
|
reservoir_state.saturation()[c*np + oilpos] = 1 - ss[c];
|
|
if (pu.phase_used[ Gas ]) {
|
|
const int gaspos = pu.phase_pos[ Gas ];
|
|
reservoir_state.saturation()[c*np + oilpos] -= reservoir_state.saturation()[c*np + gaspos];
|
|
}
|
|
if (pu.phase_used[ Water ]) {
|
|
const int waterpos = pu.phase_pos[ Water ];
|
|
reservoir_state.saturation()[c*np + oilpos] -= reservoir_state.saturation()[c*np + waterpos];
|
|
}
|
|
}
|
|
|
|
} else {
|
|
// Just forward call to base version.
|
|
Base::updateState(dx, reservoir_state, well_state);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
template <class Grid>
|
|
void
|
|
BlackoilSolventModel<Grid>::computeMassFlux(const int actph ,
|
|
const V& transi,
|
|
const ADB& kr ,
|
|
const ADB& mu ,
|
|
const ADB& rho ,
|
|
const ADB& phasePressure,
|
|
const SolutionState& state)
|
|
{
|
|
|
|
const int canonicalPhaseIdx = canph_[ actph ];
|
|
// make a copy to make it possible to modify it
|
|
ADB kr_mod = kr;
|
|
if (canonicalPhaseIdx == Gas) {
|
|
if (has_solvent_) {
|
|
const int nc = Opm::UgGridHelpers::numCells(grid_);
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
const ADB zero = ADB::constant(V::Zero(nc));
|
|
const V ones = V::Constant(nc, 1.0);
|
|
|
|
const ADB& ss = state.solvent_saturation;
|
|
const ADB& sg = (active_[ Gas ]
|
|
? state.saturation[ pu.phase_pos[ Gas ] ]
|
|
: zero);
|
|
Selector<double> zero_selector(ss.value() + sg.value(), Selector<double>::Zero);
|
|
const ADB F_solvent = zero_selector.select(zero, ss / (ss + sg));
|
|
|
|
// Compute solvent properties
|
|
const std::vector<PhasePresence>& cond = phaseCondition();
|
|
ADB mu_s = fluidViscosity(Solvent, phasePressure,state.temperature, state.rs, state.rv, cond);
|
|
ADB rho_s = fluidDensity(Solvent,rq_[solvent_pos_].b, state.rs, state.rv);
|
|
|
|
// Compute solvent relperm and mass flux
|
|
ADB krs = solvent_props_.solventRelPermMultiplier(F_solvent, cells_) * kr_mod;
|
|
Base::computeMassFlux(solvent_pos_, transi, krs, mu_s, rho_s, phasePressure, state);
|
|
|
|
// Modify gas relperm
|
|
kr_mod = solvent_props_.gasRelPermMultiplier( (ones - F_solvent) , cells_) * kr_mod;
|
|
|
|
}
|
|
}
|
|
// Compute mobility and flux
|
|
Base::computeMassFlux(actph, transi, kr_mod, mu, rho, phasePressure, state);
|
|
|
|
}
|
|
|
|
template <class Grid>
|
|
ADB
|
|
BlackoilSolventModel<Grid>::fluidViscosity(const int phase,
|
|
const ADB& p ,
|
|
const ADB& temp ,
|
|
const ADB& rs ,
|
|
const ADB& rv ,
|
|
const std::vector<PhasePresence>& cond) const
|
|
{
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
if (phase == Solvent) {
|
|
if (!is_miscible_) {
|
|
return solvent_props_.muSolvent(p, cells_);
|
|
} else {
|
|
return mu_eff_[solvent_pos_];
|
|
}
|
|
|
|
} else {
|
|
if (!is_miscible_) {
|
|
return Base::fluidViscosity(phase, p, temp, rs, rv, cond);
|
|
} else {
|
|
return mu_eff_[pu.phase_pos[ phase ]];
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class Grid>
|
|
ADB
|
|
BlackoilSolventModel<Grid>::fluidReciprocFVF(const int phase,
|
|
const ADB& p ,
|
|
const ADB& temp ,
|
|
const ADB& rs ,
|
|
const ADB& rv ,
|
|
const std::vector<PhasePresence>& cond) const
|
|
{
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
if (phase == Solvent) {
|
|
if (!is_miscible_) {
|
|
return solvent_props_.bSolvent(p, cells_);
|
|
} else {
|
|
return b_eff_[solvent_pos_];
|
|
}
|
|
|
|
} else {
|
|
if (!is_miscible_) {
|
|
return Base::fluidReciprocFVF(phase, p, temp, rs, rv, cond);
|
|
} else {
|
|
return b_eff_[pu.phase_pos[ phase ]];
|
|
}
|
|
}
|
|
}
|
|
|
|
template <class Grid>
|
|
ADB
|
|
BlackoilSolventModel<Grid>::fluidDensity(const int phase,
|
|
const ADB& b,
|
|
const ADB& rs,
|
|
const ADB& rv) const
|
|
{
|
|
if (phase == Solvent && has_solvent_) {
|
|
return solvent_props_.solventSurfaceDensity(cells_) * b;
|
|
} else {
|
|
return Base::fluidDensity(phase, b, rs, rv);
|
|
}
|
|
}
|
|
|
|
template <class Grid>
|
|
std::vector<ADB>
|
|
BlackoilSolventModel<Grid>::computeRelPerm(const SolutionState& state) const
|
|
{
|
|
using namespace Opm::AutoDiffGrid;
|
|
const int nc = numCells(grid_);
|
|
|
|
const ADB zero = ADB::constant(V::Zero(nc));
|
|
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
const ADB& sw = (active_[ Water ]
|
|
? state.saturation[ pu.phase_pos[ Water ] ]
|
|
: zero);
|
|
|
|
const ADB& so = (active_[ Oil ]
|
|
? state.saturation[ pu.phase_pos[ Oil ] ]
|
|
: zero);
|
|
|
|
const ADB& sg = (active_[ Gas ]
|
|
? state.saturation[ pu.phase_pos[ Gas ] ]
|
|
: zero);
|
|
|
|
if (has_solvent_) {
|
|
const ADB& ss = state.solvent_saturation;
|
|
if (is_miscible_) {
|
|
|
|
assert(active_[ Oil ]);
|
|
assert(active_[ Gas ]);
|
|
|
|
std::vector<ADB> relperm = fluid_.relperm(sw, so, sg+ss, cells_);
|
|
|
|
Selector<double> zero_selector(ss.value() + sg.value(), Selector<double>::Zero);
|
|
ADB F_solvent = zero_selector.select(ss, ss / (ss + sg));
|
|
const ADB& po = state.canonical_phase_pressures[ Oil ];
|
|
const ADB misc = solvent_props_.miscibilityFunction(F_solvent, cells_)
|
|
* solvent_props_.pressureMiscibilityFunction(po, cells_);
|
|
|
|
const ADB sn = ss + so + sg;
|
|
|
|
// adjust endpoints
|
|
const V sgcr = fluid_.scaledCriticalGasSaturations(cells_);
|
|
const V sogcr = fluid_.scaledCriticalOilinGasSaturations(cells_);
|
|
const ADB sorwmis = solvent_props_.miscibleResidualOilSaturationFunction(sw, cells_);
|
|
const ADB sgcwmis = solvent_props_.miscibleCriticalGasSaturationFunction(sw, cells_);
|
|
|
|
const V ones = V::Constant(nc, 1.0);
|
|
ADB sor = misc * sorwmis + (ones - misc) * sogcr;
|
|
ADB sgc = misc * sgcwmis + (ones - misc) * sgcr;
|
|
|
|
ADB ssg = ss + sg - sgc;
|
|
const ADB sn_eff = sn - sor - sgc;
|
|
|
|
// avoid negative values
|
|
Selector<double> negSsg_selector(ssg.value(), Selector<double>::LessZero);
|
|
ssg = negSsg_selector.select(zero, ssg);
|
|
|
|
// avoid negative value and division on zero
|
|
Selector<double> zeroSn_selector(sn_eff.value(), Selector<double>::LessEqualZero);
|
|
const ADB F_totalGas = zeroSn_selector.select( zero, ssg / sn_eff);
|
|
|
|
const ADB mkrgt = solvent_props_.miscibleSolventGasRelPermMultiplier(F_totalGas, cells_) * solvent_props_.misicibleHydrocarbonWaterRelPerm(sn, cells_);
|
|
const ADB mkro = solvent_props_.miscibleOilRelPermMultiplier(ones - F_totalGas, cells_) * solvent_props_.misicibleHydrocarbonWaterRelPerm(sn, cells_);
|
|
|
|
const V eps = V::Constant(nc, 1e-7);
|
|
Selector<double> noOil_selector(so.value()-eps, Selector<double>::LessEqualZero);
|
|
relperm[Gas] = noOil_selector.select(relperm[Gas], (ones - misc) * relperm[Gas] + misc * mkrgt);
|
|
relperm[Oil] = noOil_selector.select(relperm[Oil], (ones - misc) * relperm[Oil] + misc * mkro);
|
|
return relperm;
|
|
} else {
|
|
return fluid_.relperm(sw, so, sg+ss, cells_);
|
|
}
|
|
} else {
|
|
return fluid_.relperm(sw, so, sg, cells_);
|
|
}
|
|
|
|
}
|
|
|
|
template <class Grid>
|
|
void
|
|
BlackoilSolventModel<Grid>::extractWellPerfProperties(const SolutionState& state,
|
|
std::vector<ADB>& mob_perfcells,
|
|
std::vector<ADB>& b_perfcells)
|
|
{
|
|
Base::extractWellPerfProperties(state, mob_perfcells, b_perfcells);
|
|
if (has_solvent_) {
|
|
int gas_pos = fluid_.phaseUsage().phase_pos[Gas];
|
|
const std::vector<int>& well_cells = stdWells().wellOps().well_cells;
|
|
const int nperf = well_cells.size();
|
|
// Gas and solvent is combinded and solved together
|
|
// The input in the well equation is then the
|
|
// total gas phase = hydro carbon gas + solvent gas
|
|
|
|
// The total mobility is the sum of the solvent and gas mobiliy
|
|
mob_perfcells[gas_pos] += subset(rq_[solvent_pos_].mob, well_cells);
|
|
|
|
// A weighted sum of the b-factors of gas and solvent are used.
|
|
const int nc = Opm::AutoDiffGrid::numCells(grid_);
|
|
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
const ADB zero = ADB::constant(V::Zero(nc));
|
|
const ADB& ss = state.solvent_saturation;
|
|
const ADB& sg = (active_[ Gas ]
|
|
? state.saturation[ pu.phase_pos[ Gas ] ]
|
|
: zero);
|
|
|
|
Selector<double> zero_selector(ss.value() + sg.value(), Selector<double>::Zero);
|
|
ADB F_solvent = subset(zero_selector.select(ss, ss / (ss + sg)),well_cells);
|
|
V ones = V::Constant(nperf,1.0);
|
|
|
|
b_perfcells[gas_pos] = (ones - F_solvent) * b_perfcells[gas_pos];
|
|
b_perfcells[gas_pos] += (F_solvent * subset(rq_[solvent_pos_].b, well_cells));
|
|
|
|
}
|
|
}
|
|
|
|
template <class Grid>
|
|
void
|
|
BlackoilSolventModel<Grid>::computeEffectiveProperties(const SolutionState& state)
|
|
{
|
|
// Viscosity
|
|
const Opm::PhaseUsage& pu = fluid_.phaseUsage();
|
|
const int np = fluid_.numPhases();
|
|
const int nc = Opm::UgGridHelpers::numCells(grid_);
|
|
const ADB zero = ADB::constant(V::Zero(nc));
|
|
|
|
const ADB& pw = state.canonical_phase_pressures[pu.phase_pos[Water]];
|
|
const ADB& po = state.canonical_phase_pressures[pu.phase_pos[Oil]];
|
|
const ADB& pg = state.canonical_phase_pressures[pu.phase_pos[Gas]];
|
|
const std::vector<PhasePresence>& cond = phaseCondition();
|
|
|
|
const ADB mu_w = fluid_.muWat(pw, state.temperature, cells_);
|
|
const ADB mu_o = fluid_.muOil(po, state.temperature, state.rs, cond, cells_);
|
|
const ADB mu_g = fluid_.muGas(pg, state.temperature, state.rv, cond, cells_);
|
|
const ADB mu_s = solvent_props_.muSolvent(pg,cells_);
|
|
std::vector<ADB> viscosity(np + 1, ADB::null());
|
|
viscosity[pu.phase_pos[Oil]] = mu_o;
|
|
viscosity[pu.phase_pos[Gas]] = mu_g;
|
|
viscosity[pu.phase_pos[Water]] = mu_w;
|
|
viscosity[solvent_pos_] = mu_s;
|
|
|
|
// Density
|
|
const ADB bw = fluid_.bWat(pw, state.temperature, cells_);
|
|
const ADB bo = fluid_.bOil(po, state.temperature, state.rs, cond, cells_);
|
|
const ADB bg = fluid_.bGas(pg, state.temperature, state.rv, cond, cells_);
|
|
const ADB bs = solvent_props_.bSolvent(pg, cells_);
|
|
|
|
std::vector<ADB> density(np + 1, ADB::null());
|
|
density[pu.phase_pos[Oil]] = fluidDensity(Oil, bo, state.rs, state.rv);
|
|
density[pu.phase_pos[Gas]] = fluidDensity(Gas, bg, state.rs, state.rv);
|
|
density[pu.phase_pos[Water]] = fluidDensity(Water, bw, state.rs, state.rv);
|
|
density[solvent_pos_] = fluidDensity(Solvent, bs, state.rs, state.rv);
|
|
|
|
// Effective saturations
|
|
const ADB& ss = state.solvent_saturation;
|
|
const ADB& so = state.saturation[ pu.phase_pos[ Oil ] ];
|
|
const ADB& sg = (active_[ Gas ]
|
|
? state.saturation[ pu.phase_pos[ Gas ] ]
|
|
: zero);
|
|
const ADB& sw = (active_[ Water ]
|
|
? state.saturation[ pu.phase_pos[ Water ] ]
|
|
: zero);
|
|
|
|
const ADB sorwmis = solvent_props_.miscibleResidualOilSaturationFunction(sw, cells_);
|
|
const ADB sgcwmis = solvent_props_.miscibleCriticalGasSaturationFunction(sw, cells_);
|
|
|
|
std::vector<ADB> effective_saturations (np + 1, ADB::null());
|
|
effective_saturations[pu.phase_pos[Oil]] = so - sorwmis;
|
|
effective_saturations[pu.phase_pos[Gas]] = sg - sgcwmis;
|
|
effective_saturations[pu.phase_pos[Water]] = sw;
|
|
effective_saturations[solvent_pos_] = ss - sgcwmis;
|
|
|
|
// Compute effective viscosities and densities
|
|
computeToddLongstaffMixing(viscosity, density, effective_saturations, po, pu);
|
|
|
|
// compute the volume factors from the densities
|
|
const ADB b_eff_o = density[pu.phase_pos[ Oil ]] / (fluid_.surfaceDensity(pu.phase_pos[ Oil ], cells_) + fluid_.surfaceDensity(pu.phase_pos[ Gas ], cells_) * state.rs);
|
|
const ADB b_eff_g = density[pu.phase_pos[ Gas ]] / (fluid_.surfaceDensity(pu.phase_pos[ Gas ], cells_) + fluid_.surfaceDensity(pu.phase_pos[ Oil ], cells_) * state.rv);
|
|
const ADB b_eff_s = density[solvent_pos_] / solvent_props_.solventSurfaceDensity(cells_);
|
|
|
|
// account for pressure effects and store the computed volume factors and viscosities
|
|
const V ones = V::Constant(nc, 1.0);
|
|
const ADB pmisc = solvent_props_.pressureMiscibilityFunction(po, cells_);
|
|
|
|
b_eff_[pu.phase_pos[ Oil ]] = pmisc * b_eff_o + (ones - pmisc) * bo;
|
|
b_eff_[pu.phase_pos[ Gas ]] = pmisc * b_eff_g + (ones - pmisc) * bg;
|
|
b_eff_[solvent_pos_] = pmisc * b_eff_s + (ones - pmisc) * bs;
|
|
|
|
// keep the mu*b interpolation
|
|
mu_eff_[pu.phase_pos[ Oil ]] = b_eff_[pu.phase_pos[ Oil ]] / (pmisc * b_eff_o / viscosity[pu.phase_pos[ Oil ]] + (ones - pmisc) * bo / mu_o);
|
|
mu_eff_[pu.phase_pos[ Gas ]] = b_eff_[pu.phase_pos[ Gas ]] / (pmisc * b_eff_g / viscosity[pu.phase_pos[ Gas ]] + (ones - pmisc) * bg / mu_g);
|
|
mu_eff_[solvent_pos_] = b_eff_[solvent_pos_] / (pmisc * b_eff_s / viscosity[solvent_pos_] + (ones - pmisc) * bs / mu_s);
|
|
|
|
// for water the pure values are used
|
|
mu_eff_[pu.phase_pos[ Water ]] = mu_w;
|
|
b_eff_[pu.phase_pos[ Water ]] = bw;
|
|
}
|
|
|
|
template <class Grid>
|
|
void
|
|
BlackoilSolventModel<Grid>::computeToddLongstaffMixing(std::vector<ADB>& viscosity, std::vector<ADB>& density, const std::vector<ADB>& saturations, const ADB po, const Opm::PhaseUsage pu)
|
|
{
|
|
const int nc = cells_.size();
|
|
const V ones = V::Constant(nc, 1.0);
|
|
const ADB zero = ADB::constant(V::Zero(nc));
|
|
|
|
// Calculation of effective saturations
|
|
ADB so_eff = saturations[pu.phase_pos[ Oil ]];
|
|
ADB sg_eff = saturations[pu.phase_pos[ Gas ]];
|
|
ADB ss_eff = saturations[solvent_pos_];
|
|
|
|
// Avoid negative values
|
|
Selector<double> negative_selectorSo(so_eff.value(), Selector<double>::LessZero);
|
|
Selector<double> negative_selectorSg(sg_eff.value(), Selector<double>::LessZero);
|
|
Selector<double> negative_selectorSs(ss_eff.value(), Selector<double>::LessZero);
|
|
so_eff = negative_selectorSo.select(zero, so_eff);
|
|
sg_eff = negative_selectorSg.select(zero, sg_eff);
|
|
ss_eff = negative_selectorSs.select(zero, ss_eff);
|
|
|
|
// Make copy of the pure viscosities
|
|
const ADB mu_o = viscosity[pu.phase_pos[ Oil ]];
|
|
const ADB mu_g = viscosity[pu.phase_pos[ Gas ]];
|
|
const ADB mu_s = viscosity[solvent_pos_];
|
|
|
|
const ADB sn_eff = so_eff + sg_eff + ss_eff;
|
|
const ADB sos_eff = so_eff + ss_eff;
|
|
const ADB ssg_eff = ss_eff + sg_eff;
|
|
|
|
// Avoid division by zero
|
|
Selector<double> zero_selectorSos(sos_eff.value(), Selector<double>::Zero);
|
|
Selector<double> zero_selectorSsg(ssg_eff.value(), Selector<double>::Zero);
|
|
Selector<double> zero_selectorSn(sn_eff.value(), Selector<double>::Zero);
|
|
|
|
const ADB mu_s_pow = pow(mu_s, 0.25);
|
|
const ADB mu_o_pow = pow(mu_o, 0.25);
|
|
const ADB mu_g_pow = pow(mu_g, 0.25);
|
|
|
|
const ADB mu_mos = zero_selectorSos.select(mu_o + mu_s, mu_o * mu_s / pow( ( (so_eff / sos_eff) * mu_s_pow) + ( (ss_eff / sos_eff) * mu_o_pow) , 4.0));
|
|
const ADB mu_msg = zero_selectorSsg.select(mu_g + mu_s , mu_g * mu_s / pow( ( (sg_eff / ssg_eff) * mu_s_pow) + ( (ss_eff / ssg_eff) * mu_g_pow) , 4.0));
|
|
const ADB mu_m = zero_selectorSn.select(mu_s + mu_o + mu_g, mu_o * mu_s * mu_g / pow( ( (so_eff / sn_eff) * mu_s_pow * mu_g_pow)
|
|
+ ( (ss_eff / sn_eff) * mu_o_pow * mu_g_pow) + ( (sg_eff / sn_eff) * mu_s_pow * mu_o_pow), 4.0));
|
|
// Mixing parameter for viscosity
|
|
// The pressureMixingParameter represent the miscibility of the solvent while the mixingParameterViscosity the effect of the porous media.
|
|
// The pressureMixingParameter is not implemented in ecl100.
|
|
const ADB mix_param_mu = solvent_props_.mixingParameterViscosity(cells_) * solvent_props_.pressureMixingParameter(po, cells_);
|
|
|
|
// Update viscosities
|
|
viscosity[pu.phase_pos[ Oil ]] = pow(mu_o,ones - mix_param_mu) * pow(mu_mos, mix_param_mu);
|
|
viscosity[pu.phase_pos[ Gas ]] = pow(mu_g,ones - mix_param_mu) * pow(mu_msg, mix_param_mu);
|
|
viscosity[solvent_pos_] = pow(mu_s,ones - mix_param_mu) * pow(mu_m, mix_param_mu);
|
|
|
|
// Density
|
|
ADB& rho_o = density[pu.phase_pos[ Oil ]];
|
|
ADB& rho_g = density[pu.phase_pos[ Gas ]];
|
|
ADB& rho_s = density[solvent_pos_];
|
|
|
|
// mixing parameter for density
|
|
const ADB mix_param_rho = solvent_props_.mixingParameterDensity(cells_) * solvent_props_.pressureMixingParameter(po, cells_);
|
|
|
|
// compute effective viscosities for density calculations. These have to
|
|
// be recomputed as a different mixing parameter may be used.
|
|
const ADB mu_o_eff = pow(mu_o,ones - mix_param_rho) * pow(mu_mos, mix_param_rho);
|
|
const ADB mu_g_eff = pow(mu_g,ones - mix_param_rho) * pow(mu_msg, mix_param_rho);
|
|
const ADB mu_s_eff = pow(mu_s,ones - mix_param_rho) * pow(mu_m, mix_param_rho);
|
|
|
|
const ADB sog_eff = so_eff + sg_eff;
|
|
const ADB sof = so_eff / sog_eff;
|
|
const ADB sgf = sg_eff / sog_eff;
|
|
|
|
// Effective densities
|
|
const ADB mu_sog_pow = mu_s_pow * ( (sgf * mu_o_pow) + (sof * mu_g_pow) );
|
|
const ADB mu_o_eff_pow = pow(mu_o_eff, 0.25);
|
|
const ADB mu_g_eff_pow = pow(mu_g_eff, 0.25);
|
|
const ADB mu_s_eff_pow = pow(mu_s_eff, 0.25);
|
|
const ADB sfraction_oe = (mu_o_pow * (mu_o_eff_pow - mu_s_pow)) / (mu_o_eff_pow * (mu_o_pow - mu_s_pow));
|
|
const ADB sfraction_ge = (mu_g_pow * (mu_s_pow - mu_g_eff_pow)) / (mu_g_eff_pow * (mu_s_pow - mu_g_pow));
|
|
const ADB sfraction_se = (mu_sog_pow - ( mu_o_pow * mu_g_pow * mu_s_pow / mu_s_eff_pow) ) / ( mu_sog_pow - (mu_o_pow * mu_g_pow));
|
|
const ADB rho_o_eff = (rho_o * sfraction_oe) + (rho_s * (ones - sfraction_oe));
|
|
const ADB rho_g_eff = (rho_g * sfraction_ge) + (rho_s * (ones - sfraction_ge));
|
|
const ADB rho_s_eff = (rho_s * sfraction_se) + (rho_g * sgf * (ones - sfraction_se)) + (rho_o * sof * (ones - sfraction_se));
|
|
|
|
// Avoid division by zero for equal mobilities. For equal mobilities the effecitive density is calculated
|
|
// based on the saturation fraction directly.
|
|
Selector<double> unitGasSolventMobilityRatio_selector(mu_s.value() - mu_g.value(), Selector<double>::Zero);
|
|
Selector<double> unitOilSolventMobilityRatio_selector(mu_s.value() - mu_o.value(), Selector<double>::Zero);
|
|
|
|
// Effective densities when the mobilities are equal
|
|
const ADB rho_m = zero_selectorSn.select(zero, (rho_o * so_eff / sn_eff) + (rho_g * sg_eff / sn_eff) + (rho_s * ss_eff / sn_eff));
|
|
const ADB rho_o_eff_simple = ((ones - mix_param_rho) * rho_o) + (mix_param_rho * rho_m);
|
|
const ADB rho_g_eff_simple = ((ones - mix_param_rho) * rho_g) + (mix_param_rho * rho_m);
|
|
//const ADB rho_s_eff_simple = ((ones - mix_param_rho) * rho_s) + (mix_param_rho * rho_m);
|
|
|
|
// Update densities
|
|
rho_o = unitOilSolventMobilityRatio_selector.select(rho_o_eff_simple, rho_o_eff);
|
|
rho_g = unitGasSolventMobilityRatio_selector.select(rho_g_eff_simple, rho_g_eff);
|
|
rho_s = rho_s_eff;
|
|
|
|
}
|
|
|
|
|
|
template <class Grid>
|
|
std::vector<ADB>
|
|
BlackoilSolventModel<Grid>::
|
|
computePressures(const ADB& po,
|
|
const ADB& sw,
|
|
const ADB& so,
|
|
const ADB& sg,
|
|
const ADB& ss) const
|
|
{
|
|
std::vector<ADB> pressures = Base::computePressures(po, sw, so, sg);
|
|
|
|
if (has_solvent_) {
|
|
// The imiscible capillary pressure is evaluated using the total gas saturation (sg + ss)
|
|
std::vector<ADB> pressures_imisc = Base::computePressures(po, sw, so, sg + ss);
|
|
|
|
// Pressure effects on capillary pressure miscibility
|
|
const ADB pmisc = solvent_props_.pressureMiscibilityFunction(po, cells_);
|
|
// Only the pcog is effected by the miscibility. Since pg = po + pcog, changing pg is eqvivalent
|
|
// to changing the gas pressure directly.
|
|
const int nc = cells_.size();
|
|
const V ones = V::Constant(nc, 1.0);
|
|
pressures[Gas] = ( pmisc * pressures[Gas] + ((ones - pmisc) * pressures_imisc[Gas]));
|
|
}
|
|
return pressures;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
#endif // OPM_BLACKOILSOLVENT_IMPL_HEADER_INCLUDED
|