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Fixes StandardWell::computeConnectionDensities.

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This computation is serial and needs a complete representation
of data attached to all preforations (even those stored on
another process). This commit uses the newly created factory to
correctly compute the connection densities for distributed wells.
This commit is contained in:
Markus Blatt 2020-12-14 16:38:38 +01:00
parent 69fd6495c0
commit 5b943761d7
1 changed files with 19 additions and 6 deletions
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25
opm/simulators/wells/StandardWell_impl.hpp
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@ -2001,24 +2001,37 @@ namespace Opm
// component) exiting up the wellbore from each perforation,
// taking into account flow from lower in the well, and
// in/out-flow at each perforation.
std::vector<double> q_out_perf(nperf*num_comp);
std::vector<double> q_out_perf((nperf)*num_comp, 0.0);
// Step 1 depends on the order of the perforations. Hence we need to
// do the modifications globally.
// Create and get the global perforation information and do this sequentially
// on each process
const auto& factory = this->parallel_well_info_.getGlobalPerfContainerFactory();
auto global_q_out_perf = factory.createGlobal(q_out_perf, num_comp);
auto global_perf_comp_rates = factory.createGlobal(perfComponentRates, num_comp);
// TODO: investigate whether we should use the following techniques to calcuate the composition of flows in the wellbore
// Iterate over well perforations from bottom to top.
for (int perf = nperf - 1; perf >= 0; --perf) {
for (int perf = factory.numGlobalPerfs() - 1; perf >= 0; --perf) {
for (int component = 0; component < num_comp; ++component) {
if (perf == nperf - 1) {
auto index = perf * num_comp + component;
if (perf == factory.numGlobalPerfs() - 1) {
// This is the bottom perforation. No flow from below.
q_out_perf[perf*num_comp+ component] = 0.0;
global_q_out_perf[index] = 0.0;
} else {
// Set equal to flow from below.
q_out_perf[perf*num_comp + component] = q_out_perf[(perf+1)*num_comp + component];
global_q_out_perf[index] = global_q_out_perf[index + num_comp];
}
// Subtract outflow through perforation.
q_out_perf[perf*num_comp + component] -= perfComponentRates[perf*num_comp + component];
global_q_out_perf[index] -= global_perf_comp_rates[index];
}
}
// Copy the data back to local view
factory.copyGlobalToLocal(global_q_out_perf, q_out_perf, num_comp);
// 2. Compute the component mix at each perforation as the
// absolute values of the surface rates divided by their sum.
// Then compute volume ratios (formation factors) for each perforation.