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Implement new well model

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Start using the well model desribed in SPE 12259 "Enhancements to the
Strongly Coupled, Fully Implicit Well Model: Wellbore CrossFlow Modeling
and Collective Well Control"

The new well model uses three well primary variables: (the old one had
4)
1) bhp for rate controlled wells or total_rate for bhp controlled wells
2) flowing fraction of water Fw = g_w * Q_w / (g_w * Q_w + q_o * Q_o +
q_g + Q_g)
3) flowing fraction of gas  Fg = g_g * Q_g / (g_w * Q_w + q_o * Q_o +
q_g + Q_g)
where g_g = 0.01 and q_w = q_o = 1;

Note 1:
This is the starting point of implementing a well model using denseAD
The plan is to gradually remove Eigen from the well model and instead
use the fluidState object provided by the Ebos simulator
Note 2:
This is still work in progress and substantial cleaning and testing is
still needed.
Note 3: Runs SPE1, SPE9 and norne until 950 days.
This commit is contained in:
Tor Harald Sandve
2016-08-11 13:31:52 +02:00
parent 3e8792b9cc
commit 5cd7468b51
7 changed files with 2684 additions and 54 deletions
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12
opm/autodiff/NewtonIterationBlackoilInterleaved.cpp
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@@ -390,7 +390,7 @@ namespace Opm
//const int np = residual.material_balance_eq.size();
assert( np == int(residual.material_balance_eq.size()) );
std::vector<ADB> eqs;
eqs.reserve(np + 2);
eqs.reserve(np + 1);
for (int phase = 0; phase < np; ++phase) {
eqs.push_back(residual.material_balance_eq[phase]);
}
@@ -401,14 +401,14 @@ namespace Opm
if( hasWells )
{
eqs.push_back(residual.well_flux_eq);
eqs.push_back(residual.well_eq);
//eqs.push_back(residual.well_eq);
// Eliminate the well-related unknowns, and corresponding equations.
elim_eqs.reserve(2);
elim_eqs.reserve(1);
elim_eqs.push_back(eqs[np]);
eqs = eliminateVariable(eqs, np); // Eliminate well flux unknowns.
elim_eqs.push_back(eqs[np]);
eqs = eliminateVariable(eqs, np); // Eliminate well bhp unknowns.
//elim_eqs.push_back(eqs[np]);
//eqs = eliminateVariable(eqs, np); // Eliminate well bhp unknowns.
assert(int(eqs.size()) == np);
}
@@ -500,7 +500,7 @@ namespace Opm
if ( hasWells ) {
// Compute full solution using the eliminated equations.
// Recovery in inverse order of elimination.
dx = recoverVariable(elim_eqs[1], dx, np);
//dx = recoverVariable(elim_eqs[1], dx, np);
dx = recoverVariable(elim_eqs[0], dx, np);
}
return dx;