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considering the two pressure difference to MultisegmentWell

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while the sign of the pressure differences are not sure or well tested
yet.
This commit is contained in:
Kai Bao
2017-10-02 18:29:03 +02:00
parent aa8b1ae0f8
commit f6ad3669f8
2 changed files with 21 additions and 16 deletions
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8
opm/autodiff/MultisegmentWell.hpp
View File

@@ -244,15 +244,15 @@ namespace Opm
mutable std::vector<std::array<EvalWell, numWellEq> > primary_variables_evaluation_;
// depth difference between perforations and the perforated grid cells
std::vector<double> perforation_cell_depth_diffs_;
std::vector<double> cell_perforation_depth_diffs_;
// pressure correction due to the different depth of the perforation and
// center depth of the grid block
std::vector<double> perforation_cell_pressure_diffs_;
std::vector<double> cell_perforation_pressure_diffs_;
// depth difference between the segment and the peforation
// or in another way, the depth difference between the perforation and
// the segment the perforation belongs to
std::vector<double> segment_perforation_depth_diffs_;
std::vector<double> perforation_segment_depth_diffs_;
// the intial component compistion of segments
std::vector<std::vector<double> > segment_comp_initial_;
@@ -304,7 +304,7 @@ namespace Opm
void computePerfRate(const IntensiveQuantities& int_quants,
const std::vector<EvalWell>& mob_perfcells,
const int seg,
const double well_index,
const int perf,
const EvalWell& segment_pressure,
const bool& allow_cf,
std::vector<EvalWell>& cq_s) const;

29
opm/autodiff/MultisegmentWell_impl.hpp
View File

@@ -31,9 +31,9 @@ namespace Opm
: Base(well, time_step, wells)
, segment_perforations_(numberOfSegments())
, segment_inlets_(numberOfSegments())
, perforation_cell_depth_diffs_(number_of_perforations_, 0.0)
, perforation_cell_pressure_diffs_(number_of_perforations_, 0.0)
, segment_perforation_depth_diffs_(number_of_perforations_, 0.0)
, cell_perforation_depth_diffs_(number_of_perforations_, 0.0)
, cell_perforation_pressure_diffs_(number_of_perforations_, 0.0)
, perforation_segment_depth_diffs_(number_of_perforations_, 0.0)
, segment_comp_initial_(numberOfSegments(), std::vector<double>(numComponents(), 0.0))
, segment_densities_(numberOfSegments(), 0.0)
, segment_viscosities_(numberOfSegments(), 0.0)
@@ -79,7 +79,7 @@ namespace Opm
// TODO: use the one from the opm-parser first
// TODO: checking wehther the order of the perforation changed or not
perf_depth_[perf] = completion_set.get(perf).getCenterDepth();
segment_perforation_depth_diffs_[perf] = segment_depth - perf_depth_[perf];
perforation_segment_depth_diffs_[perf] = perf_depth_[perf] - segment_depth;
}
}
@@ -127,7 +127,7 @@ namespace Opm
// calcuate the depth difference between the perforations and the perforated grid block
for (int perf = 0; perf < number_of_perforations_; ++perf) {
const int cell_idx = well_cells_[perf];
perforation_cell_depth_diffs_[perf] = perf_depth_[perf] - depth_arg[cell_idx];
cell_perforation_depth_diffs_[perf] = depth_arg[cell_idx] - perf_depth_[perf];
}
}
@@ -299,7 +299,7 @@ namespace Opm
std::vector<EvalWell> mob(num_comp, 0.0);
getMobility(ebosSimulator, perf, mob);
std::vector<EvalWell> cq_s(num_comp, 0.0);
computePerfRate(int_quants, mob, seg, well_index_[perf], seg_pressure, allow_cf, cq_s);
computePerfRate(int_quants, mob, seg, perf, seg_pressure, allow_cf, cq_s);
for (int comp_idx = 0; comp_idx < num_comp; ++comp_idx) {
// the cq_s entering mass balance equations need to consider the efficiency factors.
@@ -808,7 +808,7 @@ namespace Opm
}
average_density /= sum_kr;
perforation_cell_pressure_diffs_[perf] = gravity_ * average_density * perforation_cell_depth_diffs_[perf];
cell_perforation_pressure_diffs_[perf] = gravity_ * average_density * cell_perforation_depth_diffs_[perf];
}
}
@@ -1058,7 +1058,7 @@ namespace Opm
computePerfRate(const IntensiveQuantities& int_quants,
const std::vector<EvalWell>& mob_perfcells,
const int seg,
const double well_index,
const int perf,
const EvalWell& segment_pressure,
const bool& allow_cf,
std::vector<EvalWell>& cq_s) const
@@ -1090,9 +1090,14 @@ namespace Opm
// b_perfcells[contiSolventEqIdx] = extendEval(intQuants.solventInverseFormationVolumeFactor());
// }
// pressure difference between the segment and the perforation
const EvalWell perf_seg_press_diff = gravity_ * segment_densities_[seg] * perforation_segment_depth_diffs_[seg];
// pressure difference between the perforation and the grid cell
const double cell_perf_press_diff = cell_perforation_pressure_diffs_[perf];
// Pressure drawdown (also used to determine direction of flow)
// TODO: not considering the two pressure difference for now. Trying to finish the framework first.
const EvalWell drawdown = pressure_cell - segment_pressure;
// TODO: not sure about the sign of the seg_perf_press_diff, not tested.
const EvalWell drawdown = (pressure_cell + cell_perf_press_diff) - (segment_pressure + perf_seg_press_diff);
const Opm::PhaseUsage& pu = phaseUsage();
@@ -1105,7 +1110,7 @@ namespace Opm
// compute component volumetric rates at standard conditions
for (int comp_idx = 0; comp_idx < num_comp; ++comp_idx) {
const EvalWell cq_p = - well_index * (mob_perfcells[comp_idx] * drawdown);
const EvalWell cq_p = - well_index_[perf] * (mob_perfcells[comp_idx] * drawdown);
cq_s[comp_idx] = b_perfcells[comp_idx] * cq_p;
}
@@ -1130,7 +1135,7 @@ namespace Opm
}
// injection perforations total volume rates
const EvalWell cqt_i = - well_index * (total_mob * drawdown);
const EvalWell cqt_i = - well_index_[perf] * (total_mob * drawdown);
// compute volume ratio between connection and at standard conditions
EvalWell volume_ratio = 0.0;