/////////////////////////////////////////////////////////////////////////////////
//
//  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>
//  for more details.
//
/////////////////////////////////////////////////////////////////////////////////

#pragma once

//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
class RigFractureTransmissibilityEquations
{
public:
    static double centerToCenterFractureCellTrans( double conductivityCell1,
                                                   double sideLengthParallellTransCell1,
                                                   double sideLengthNormalTransCell1,
                                                   double conductivityCell2,
                                                   double sideLengthParallellTransCell2,
                                                   double sideLengthNormalTransCell2,
                                                   double cDarcyForRelevantUnit );

    static double fractureCellToWellRadialTrans( double fractureCellConductivity,
                                                 double fractureCellSizeX,
                                                 double fractureCellSizeZ,
                                                 double wellRadius,
                                                 double skinFactor,
                                                 double cDarcyForRelevantUnit );

    static double fractureCellToWellLinearTrans( double fractureConductivity,
                                                 double fractureCellSizeX,
                                                 double fractureCellSizeZ,
                                                 double perforationLengthVertical,
                                                 double perforationLengthHorizontal,
                                                 double perforationEfficiency,
                                                 double skinfactor,
                                                 double cDarcyForRelevantUnit,
                                                 double wellRadius );

    static double
        matrixToFractureTrans( double permX, double NTG, double Ay, double dx, double skinfactor, double fractureAreaWeightedlength, double cDarcy );

    static double effectiveInternalFractureToWellTransPDDHC( double sumScaledMatrixToFractureTrans, double scaledMatrixToWellTrans );

    static double effectiveMatrixToWellTransPDDHC( double sumOriginalMatrixToFractureTrans, double effectiveInternalFractureToWellTrans );

    static double matrixPermeability( double permx, double permy, double NTG );

private:
    static double centerToEdgeFractureCellTrans( double conductivity,
                                                 double sideLengthParallellTrans,
                                                 double sideLengthNormalTrans,
                                                 double cDarcyForRelevantUnit );

private:
    static const double EPSILON;
};
