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60 lines
2.8 KiB
C++
60 lines
2.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2017- Statoil ASA
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//
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// ResInsight is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
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// for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include "cvfVector3.h"
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class RigTransmissibilityEquations
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{
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public:
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// Calculations are assuming an orthogonal coordinate system
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static double wellBoreTransmissibilityComponent( double cellPerforationVectorComponent,
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double permeabilityNormalDirection1,
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double permeabilityNormalDirection2,
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double cellSizeNormalDirection1,
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double cellSizeNormalDirection2,
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double wellRadius,
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double skinFactor,
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double cDarcyForRelevantUnit );
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static double totalConnectionFactor( double transX, double transY, double transZ );
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static double
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totalKh( double cellPermX, double cellPermY, double cellPermZ, const cvf::Vec3d& internalCellLengths, double lateralNtg, double ntg );
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static double
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effectiveK( double cellPermX, double cellPermY, double cellPermZ, const cvf::Vec3d& internalCellLengths, double lateralNtg, double ntg );
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static double effectiveH( const cvf::Vec3d& internalCellLengths, double lateralNtg, double ntg );
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static double permeability( const double conductivity, const double width );
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private:
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// If using wellBoreTransmissibilityComponent to calculate Tx (transmissibility in x direction),
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// perforationVectorComponent is the x component (in the cell local coordinate system) of the perforation vector
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// permeability and cell size for Z and Y are to be specified as "normal directions" 1 and 2
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// but normal directions 1 and 2 are interchangeable (so Z=1, Y=2 and Z=2, Y=1 gives same result)
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static double peacemanRadius( double permeabilityNormalDirection1,
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double permeabilityNormalDirection2,
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double cellSizeNormalDirection1,
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double cellSizeNormalDirection2 );
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};
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