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#3412 Non-Darcy Perf intervals : Simplify calculations

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This commit is contained in:
Magne Sjaastad
2018-10-11 11:25:11 +02:00
parent bebd21aa47
commit 0174ee03e1
4 changed files with 66 additions and 131 deletions
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55
ApplicationCode/ReservoirDataModel/Completions/RigPerforationTransmissibilityEquations.cpp
View File

@@ -1,17 +1,17 @@
/////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2017- Statoil ASA
//
//
// ResInsight 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.
//
//
// ResInsight 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 at <http://www.gnu.org/licenses/gpl.html>
//
// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
// for more details.
//
/////////////////////////////////////////////////////////////////////////////////
@@ -25,18 +25,8 @@
const double RigPerforationTransmissibilityEquations::EPSILON = 1.0e-9;
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
double RigPerforationTransmissibilityEquations::effectivePermeability(double permeability,
double krFactor)
{
return permeability * krFactor;
}
//--------------------------------------------------------------------------------------------------
///
///
//--------------------------------------------------------------------------------------------------
double RigPerforationTransmissibilityEquations::betaFactor(double intertialCoefficient,
double effectivePermeability,
@@ -44,13 +34,14 @@ double RigPerforationTransmissibilityEquations::betaFactor(double intertialCoeff
double porosity,
double porosityScalingFactor)
{
return intertialCoefficient *
std::pow(effectivePermeability, permeabilityScalingFactor) *
std::pow(porosity, porosityScalingFactor);
const double scaledEffectivePermeability = std::pow(effectivePermeability, permeabilityScalingFactor);
const double scaledPorosity = std::pow(porosity, porosityScalingFactor);
return intertialCoefficient * scaledEffectivePermeability * scaledPorosity;
}
//--------------------------------------------------------------------------------------------------
///
///
//--------------------------------------------------------------------------------------------------
double RigPerforationTransmissibilityEquations::dFactor(double unitConstant,
double betaFactor,
@@ -60,17 +51,19 @@ double RigPerforationTransmissibilityEquations::dFactor(double unitConstant,
double gasDenity,
double gasViscosity)
{
return unitConstant *
betaFactor *
effectivePermeability / perforationLengthInCell *
1 / wellRadius *
gasDenity / gasViscosity;
}
// clang-format off
//
// Ke 1 gasDensity
// D = alpha * beta * -- * -- * ------------
// h rw gasViscosity
//
// clang-format on
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
double RigPerforationTransmissibilityEquations::kh(double effectivePermeability, double perforationLengthInCell)
{
return effectivePermeability * perforationLengthInCell;
const double keOverH = effectivePermeability / perforationLengthInCell;
const double oneOverRw = 1.0 / wellRadius;
const double gasDensityOverGasViscosity = gasDenity / gasViscosity;
const double D = unitConstant * betaFactor * keOverH * oneOverRw * gasDensityOverGasViscosity;
return D;
}

6
ApplicationCode/ReservoirDataModel/Completions/RigPerforationTransmissibilityEquations.h
View File

@@ -24,9 +24,6 @@
class RigPerforationTransmissibilityEquations
{
public:
static double effectivePermeability(double permeability,
double krFactor);
static double betaFactor(double intertialCoefficient,
double effectivePermeability,
double permeabilityScalingFactor,
@@ -41,9 +38,6 @@ public:
double gasDensity,
double gasViscosity);
static double kh(double effectivePermeability,
double perforationLengthInCell);
private:
static const double EPSILON;
};