EclStone1Material.hpp

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// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*
  This file is part of the Open Porous Media project (OPM).
 
  OPM 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 2 of the License, or
  (at your option) any later version.
 
  OPM 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 for more details.
 
  You should have received a copy of the GNU General Public License
  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
 
  Consult the COPYING file in the top-level source directory of this
  module for the precise wording of the license and the list of
  copyright holders.
*/
#ifndef OPM_ECL_STONE1_MATERIAL_HPP
#define OPM_ECL_STONE1_MATERIAL_HPP
 
#include "EclStone1MaterialParams.hpp"
 
#include <opm/common/TimingMacros.hpp>
#include <opm/material/common/Valgrind.hpp>
#include <opm/material/common/MathToolbox.hpp>
 
#include <algorithm>
#include <cmath>
#include <stdexcept>
#include <type_traits>
 
namespace Opm {

template <class TraitsT,
          class GasOilMaterialLawT,
          class OilWaterMaterialLawT,
          class ParamsT = EclStone1MaterialParams<TraitsT, GasOilMaterialLawT, OilWaterMaterialLawT> >
class EclStone1Material : public TraitsT
{
public:
    using GasOilMaterialLaw = GasOilMaterialLawT;
    using OilWaterMaterialLaw = OilWaterMaterialLawT;
 
    // some safety checks
    static_assert(TraitsT::numPhases == 3,
                  "The number of phases considered by this capillary pressure "
                  "law is always three!");
    static_assert(GasOilMaterialLaw::numPhases == 2,
                  "The number of phases considered by the gas-oil capillary "
                  "pressure law must be two!");
    static_assert(OilWaterMaterialLaw::numPhases == 2,
                  "The number of phases considered by the oil-water capillary "
                  "pressure law must be two!");
    static_assert(std::is_same<typename GasOilMaterialLaw::Scalar,
                               typename OilWaterMaterialLaw::Scalar>::value,
                  "The two two-phase capillary pressure laws must use the same "
                  "type of floating point values.");
 
    static_assert(GasOilMaterialLaw::implementsTwoPhaseSatApi,
                  "The gas-oil material law must implement the two-phase saturation "
                  "only API to for the default Ecl capillary pressure law!");
    static_assert(OilWaterMaterialLaw::implementsTwoPhaseSatApi,
                  "The oil-water material law must implement the two-phase saturation "
                  "only API to for the default Ecl capillary pressure law!");
 
    using Traits = TraitsT;
    using Params = ParamsT;
    using Scalar = typename Traits::Scalar;
 
    static constexpr int numPhases = 3;
    static constexpr int waterPhaseIdx = Traits::wettingPhaseIdx;
    static constexpr int oilPhaseIdx = Traits::nonWettingPhaseIdx;
    static constexpr int gasPhaseIdx = Traits::gasPhaseIdx;

    static constexpr bool implementsTwoPhaseApi = false;

    static constexpr bool implementsTwoPhaseSatApi = false;

    static constexpr bool isSaturationDependent = true;

    static constexpr bool isPressureDependent = false;

    static constexpr bool isTemperatureDependent = false;

    static constexpr bool isCompositionDependent = false;

    template <class ContainerT, class FluidState, class ...Args>
    static void capillaryPressures(ContainerT& values,
                                   const Params& params,
                                   const FluidState& state)
    {
        using Evaluation = typename std::remove_reference<decltype(values[0])>::type;
        values[gasPhaseIdx] = pcgn<FluidState, Evaluation, Args...>(params, state);
        values[oilPhaseIdx] = 0;
        values[waterPhaseIdx] = - pcnw<FluidState, Evaluation, Args...>(params, state);
        Valgrind::CheckDefined(values[gasPhaseIdx]);
        Valgrind::CheckDefined(values[oilPhaseIdx]);
        Valgrind::CheckDefined(values[waterPhaseIdx]);
    }
 
    /*
     * Hysteresis parameters for oil-water
     * @see EclHysteresisTwoPhaseLawParams::soMax(...)
     * @see EclHysteresisTwoPhaseLawParams::swMax(...)
     * @see EclHysteresisTwoPhaseLawParams::swMin(...)
     * \param params Parameters
     */
    static void oilWaterHysteresisParams(Scalar& soMax,
                                         Scalar& swMax,
                                         Scalar& swMin,
                                         const Params& params)
    {
        if constexpr (Traits::enableHysteresis) {
            soMax = 1.0 - params.oilWaterParams().krnSwMdc();
            swMax = params.oilWaterParams().krwSwMdc();
            swMin = params.oilWaterParams().pcSwMdc();
            Valgrind::CheckDefined(soMax);
            Valgrind::CheckDefined(swMax);
            Valgrind::CheckDefined(swMin);
        }
    }
 
    /*
     * Hysteresis parameters for oil-water
     * @see EclHysteresisTwoPhaseLawParams::soMax(...)
     * @see EclHysteresisTwoPhaseLawParams::swMax(...)
     * @see EclHysteresisTwoPhaseLawParams::swMin(...)
     * \param params Parameters
     */
    static void setOilWaterHysteresisParams(const Scalar& soMax,
                                            const Scalar& swMax,
                                            const Scalar& swMin,
                                            Params& params)
    {
        if constexpr (Traits::enableHysteresis) {
            params.oilWaterParams().update(swMin, swMax, 1.0 - soMax);
        }
    }
 
    /*
     * Hysteresis parameters for gas-oil
     * @see EclHysteresisTwoPhaseLawParams::sgMax(...)
     * @see EclHysteresisTwoPhaseLawParams::shMax(...)
     * @see EclHysteresisTwoPhaseLawParams::soMin(...)
     * \param params Parameters
     */
    static void gasOilHysteresisParams(Scalar& sgMax,
                                       Scalar& shMax,
                                       Scalar& soMin,
                                       const Params& params)
    {
        if constexpr (Traits::enableHysteresis) {
            const auto Swco = params.Swl();
            sgMax = 1.0 - params.gasOilParams().krnSwMdc() - Swco;
            shMax = params.gasOilParams().krwSwMdc();
            soMin = params.gasOilParams().pcSwMdc();
            Valgrind::CheckDefined(sgMax);
            Valgrind::CheckDefined(shMax);
            Valgrind::CheckDefined(soMin);
        }
    }
 
    /*
     * Hysteresis parameters for gas-oil
     * @see EclHysteresisTwoPhaseLawParams::sgMax(...)
     * @see EclHysteresisTwoPhaseLawParams::shMax(...)
     * @see EclHysteresisTwoPhaseLawParams::soMin(...)
     * \param params Parameters
     */
    static void setGasOilHysteresisParams(const Scalar& sgMax,
                                          const Scalar& shMax,
                                          const Scalar& soMin,
                                          Params& params)
    {
        if constexpr (Traits::enableHysteresis) {
            const auto Swco = params.Swl();
            params.gasOilParams().update(soMin, shMax, 1.0 - sgMax - Swco);
        }
    }
 
    static Scalar trappedGasSaturation(const Params& params, bool maximumTrapping)
    {
        const auto Swco = params.Swl();
        return params.gasOilParams().SnTrapped(maximumTrapping) - Swco;
    }
 
    static Scalar trappedOilSaturation(const Params& params, bool maximumTrapping)
    {
        return params.oilWaterParams().SnTrapped(maximumTrapping) + params.gasOilParams().SwTrapped();
    }
 
    static Scalar trappedWaterSaturation(const Params& params)
    {
        return params.oilWaterParams().SwTrapped();
    }
 
    static Scalar strandedGasSaturation(const Params& params, Scalar Sg, Scalar Kg)
    {
        const auto Swco = params.Swl();
        return params.gasOilParams().SnStranded(Sg, Kg) - Swco;
    }
    template <class FluidState, class Evaluation, class ...Args>
    static Evaluation pcgn(const Params& params,
                           const FluidState& fs)
    {
        // Maximum attainable oil saturation is 1-SWL
        const auto Sw = 1.0 - params.Swl() - decay<Evaluation>(fs.saturation(gasPhaseIdx));
        return GasOilMaterialLaw::template twoPhaseSatPcnw<Evaluation, Args...>(params.gasOilParams(), Sw);
    }

    template <class FluidState, class Evaluation, class ...Args>
    static Evaluation pcnw(const Params& params,
                           const FluidState& fs)
    {
        const auto Sw = decay<Evaluation>(fs.saturation(waterPhaseIdx));
        Valgrind::CheckDefined(Sw);
 
        const auto result = OilWaterMaterialLaw::template twoPhaseSatPcnw<Evaluation, Args...>(params.oilWaterParams(), Sw);
        Valgrind::CheckDefined(result);
 
        return result;
    }

    template <class ContainerT, class FluidState>
    static void saturations(ContainerT& /* values */,
                            const Params& /* params */,
                            const FluidState& /* fluidState */)
    {
        throw std::logic_error("Not implemented: saturations()");
    }

    template <class FluidState, class Evaluation = typename FluidState::ValueType>
    static Evaluation Sg(const Params& /* params */,
                         const FluidState& /* fluidState */)
    {
        throw std::logic_error("Not implemented: Sg()");
    }

    template <class FluidState, class Evaluation = typename FluidState::ValueType>
    static Evaluation Sn(const Params& /* params */,
                         const FluidState& /* fluidState */)
    {
        throw std::logic_error("Not implemented: Sn()");
    }

    template <class FluidState, class Evaluation = typename FluidState::ValueType>
    static Evaluation Sw(const Params& /* params */,
                         const FluidState& /* fluidState */)
    {
        throw std::logic_error("Not implemented: Sw()");
    }

    template <class ContainerT, class FluidState, class ...Args>
    static void relativePermeabilities(ContainerT& values,
                                       const Params& params,
                                       const FluidState& fluidState)
    {
        using Evaluation = typename std::remove_reference<decltype(values[0])>::type;
 
        values[waterPhaseIdx] = krw<FluidState, Evaluation, Args...>(params, fluidState);
        values[oilPhaseIdx] = krn<FluidState, Evaluation, Args...>(params, fluidState);
        values[gasPhaseIdx] = krg<FluidState, Evaluation, Args...>(params, fluidState);
    }

    template <class FluidState, class Evaluation, class ...Args>
    static Evaluation krg(const Params& params,
                          const FluidState& fluidState)
    {
        // Maximum attainable oil saturation is 1-SWL,
        const Evaluation sw = 1 - params.Swl() - decay<Evaluation>(fluidState.saturation(gasPhaseIdx));
        return GasOilMaterialLaw::twoPhaseSatKrn(params.gasOilParams(), sw);
    }

    template <class FluidState, class Evaluation, class ...Args>
    static Evaluation krw(const Params& params,
                          const FluidState& fluidState)
    {
        const Evaluation sw = decay<Evaluation>(fluidState.saturation(waterPhaseIdx));
        return OilWaterMaterialLaw::twoPhaseSatKrw(params.oilWaterParams(), sw);
    }

    template <class FluidState, class Evaluation, class ...Args>
    static Evaluation krn(const Params& params,
                          const FluidState& fluidState)
    {
        // the Eclipse docu is inconsistent with naming the variable of connate water: In
        // some places the connate water saturation is represented by "Swl", in others
        // "Swco" is used.
        const Scalar Swco = params.Swl();
 
        // oil relperm at connate water saturations (with Sg=0)
        const Scalar krocw = params.krocw();
 
        const Evaluation sw = decay<Evaluation>(fluidState.saturation(waterPhaseIdx));
        const Evaluation sg = decay<Evaluation>(fluidState.saturation(gasPhaseIdx));
 
        const Evaluation kro_ow = relpermOilInOilWaterSystem<Evaluation, FluidState, Args...>(params, fluidState);
        const Evaluation kro_go = relpermOilInOilGasSystem<Evaluation, FluidState, Args...>(params, fluidState);
 
        Evaluation beta;
        if (sw <= Swco) {
            beta = 1.0;
        } else {
            // there seems to be an error in the ECL documentation: using the approach to
            // the scaled saturations as described there leads to significant deviations
            // from the results produced by Eclipse 100.
            const Evaluation SSw = (sw - Swco) / (1.0 - Swco);
            const Evaluation SSg = sg / (1.0 - Swco);
            const Evaluation SSo = 1.0 - SSw - SSg;
 
            if (SSw >= 1.0 || SSg >= 1.0)
                beta = 1.0;
            else
                beta = pow( SSo/((1 - SSw)*(1 - SSg)), params.eta());
        }
 
        return max(0.0, min(1.0, beta*kro_ow*kro_go/krocw));
    }

    template <class Evaluation, class FluidState, class ...Args>
    static Evaluation relpermOilInOilGasSystem(const Params& params,
                                               const FluidState& fluidState)
    {
        const Evaluation sg = decay<Evaluation>(fluidState.saturation(gasPhaseIdx));
        return GasOilMaterialLaw::twoPhaseSatKrw(params.gasOilParams(), 1 - sg - params.Swl());
    }

    template <class Evaluation, class FluidState, class ...Args>
    static Evaluation relpermOilInOilWaterSystem(const Params& params,
                                                 const FluidState& fluidState)
    {
        const Evaluation sw = decay<Evaluation>(fluidState.saturation(waterPhaseIdx));
        return OilWaterMaterialLaw::twoPhaseSatKrn(params.oilWaterParams(), sw);
    }

    template <class FluidState>
    static bool updateHysteresis(Params& params, const FluidState& fluidState)
    {
        if constexpr (Traits::enableHysteresis) {
            const Scalar Swco = params.Swl();
            const Scalar sw = clampSaturation(fluidState, waterPhaseIdx);
            const Scalar So = clampSaturation(fluidState, oilPhaseIdx);
            const Scalar sg = clampSaturation(fluidState, gasPhaseIdx);
            bool owChanged = params.oilWaterParams().update(/*pcSw=*/sw, /*krwSw=*/sw, /*krnSw=*/1 - So);
            bool gochanged = params.gasOilParams().update(/*pcSw=*/So,
                                                          /*krwSw=*/So,
                                                          /*krnSw=*/1.0 - Swco - sg);
            return owChanged || gochanged;
        } else {
            return false;
        }
    }
 
    template <class FluidState>
    static Scalar clampSaturation(const FluidState& fluidState, const int phaseIndex)
    {
        OPM_TIMEFUNCTION_LOCAL(Subsystem::SatProps);
        const auto sat = scalarValue(fluidState.saturation(phaseIndex));
        return std::clamp(sat, Scalar{0.0}, Scalar{1.0});
    }
};
 
} // namespace Opm
 
#endif