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302 lines
16 KiB
C++
302 lines
16 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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#include "RigEclipseToStimPlanCellTransmissibilityCalculator.h"
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#include "RigStimPlanFracTemplateCell.h"
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#include "RigResultAccessorFactory.h"
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#include "RigEclipseCaseData.h"
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#include "RigActiveCellInfo.h"
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#include "RigCellGeometryTools.h"
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#include "RigMainGrid.h"
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#include "RimEclipseCase.h"
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#include "RimReservoirCellResultsStorage.h"
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#include "cvfGeometryTools.h"
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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RigEclipseToStimPlanCellTransmissibilityCalculator::RigEclipseToStimPlanCellTransmissibilityCalculator(const RimEclipseCase* caseToApply,
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cvf::Mat4f fractureTransform,
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double skinFactor,
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double cDarcy,
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const RigStimPlanFracTemplateCell& stimPlanCell)
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: m_case(caseToApply),
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m_fractureTransform(fractureTransform),
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m_fractureSkinFactor(skinFactor),
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m_cDarcy(cDarcy),
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m_stimPlanCell(stimPlanCell)
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{
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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const std::vector<size_t>& RigEclipseToStimPlanCellTransmissibilityCalculator::globalIndeciesToContributingEclipseCells()
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{
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if (m_globalIndeciesToContributingEclipseCells.size() < 1)
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{
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calculateStimPlanCellsMatrixTransmissibility();
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}
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return m_globalIndeciesToContributingEclipseCells;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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const std::vector<double>& RigEclipseToStimPlanCellTransmissibilityCalculator::contributingEclipseCellTransmissibilities()
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{
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if (m_globalIndeciesToContributingEclipseCells.size() < 1)
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{
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calculateStimPlanCellsMatrixTransmissibility();
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}
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return m_contributingEclipseCellTransmissibilities;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void RigEclipseToStimPlanCellTransmissibilityCalculator::calculateStimPlanCellsMatrixTransmissibility()
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{
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// Not calculating flow into fracture if stimPlan cell cond value is 0 (assumed to be outside the fracture):
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if (m_stimPlanCell.getConductivtyValue() < 1e-7) return;
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const RigEclipseCaseData* eclipseCaseData = m_case->eclipseCaseData();
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RifReaderInterface::PorosityModelResultType porosityModel = RifReaderInterface::MATRIX_RESULTS;
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RimReservoirCellResultsStorage* gridCellResults = m_case->results(porosityModel);
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size_t scalarSetIndex;
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scalarSetIndex = gridCellResults->findOrLoadScalarResult(RimDefines::STATIC_NATIVE, "DX");
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cvf::ref<RigResultAccessor> dataAccessObjectDx = RigResultAccessorFactory::createFromUiResultName(eclipseCaseData, 0, porosityModel, 0, "DX"); //assuming 0 time step and main grid (so grid index =0)
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scalarSetIndex = gridCellResults->findOrLoadScalarResult(RimDefines::STATIC_NATIVE, "DY");
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cvf::ref<RigResultAccessor> dataAccessObjectDy = RigResultAccessorFactory::createFromUiResultName(eclipseCaseData, 0, porosityModel, 0, "DY"); //assuming 0 time step and main grid (so grid index =0)
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scalarSetIndex = gridCellResults->findOrLoadScalarResult(RimDefines::STATIC_NATIVE, "DZ");
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cvf::ref<RigResultAccessor> dataAccessObjectDz = RigResultAccessorFactory::createFromUiResultName(eclipseCaseData, 0, porosityModel, 0, "DZ"); //assuming 0 time step and main grid (so grid index =0)
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scalarSetIndex = gridCellResults->findOrLoadScalarResult(RimDefines::STATIC_NATIVE, "PERMX");
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cvf::ref<RigResultAccessor> dataAccessObjectPermX = RigResultAccessorFactory::createFromUiResultName(eclipseCaseData, 0, porosityModel, 0, "PERMX"); //assuming 0 time step and main grid (so grid index =0)
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scalarSetIndex = gridCellResults->findOrLoadScalarResult(RimDefines::STATIC_NATIVE, "PERMY");
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cvf::ref<RigResultAccessor> dataAccessObjectPermY = RigResultAccessorFactory::createFromUiResultName(eclipseCaseData, 0, porosityModel, 0, "PERMY"); //assuming 0 time step and main grid (so grid index =0)
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scalarSetIndex = gridCellResults->findOrLoadScalarResult(RimDefines::STATIC_NATIVE, "PERMZ");
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cvf::ref<RigResultAccessor> dataAccessObjectPermZ = RigResultAccessorFactory::createFromUiResultName(eclipseCaseData, 0, porosityModel, 0, "PERMZ"); //assuming 0 time step and main grid (so grid index =0)
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scalarSetIndex = gridCellResults->findOrLoadScalarResult(RimDefines::STATIC_NATIVE, "NTG");
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cvf::ref<RigResultAccessor> dataAccessObjectNTG = RigResultAccessorFactory::createFromUiResultName(eclipseCaseData, 0, porosityModel, 0, "NTG"); //assuming 0 time step and main grid (so grid index =0)
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const RigActiveCellInfo* activeCellInfo = eclipseCaseData->activeCellInfo(porosityModel);
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std::vector<cvf::Vec3d> stimPlanPolygonTransformed;
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for (cvf::Vec3d v : m_stimPlanCell.getPolygon())
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{
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cvf::Vec3f stimPlanPolygonNode = static_cast<cvf::Vec3f>(v);
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stimPlanPolygonNode.transformPoint(m_fractureTransform);
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stimPlanPolygonTransformed.push_back(static_cast<cvf::Vec3d>(stimPlanPolygonNode));
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}
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std::vector<size_t> fracCells = getPotentiallyFracturedCellsForPolygon(stimPlanPolygonTransformed);
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for (size_t fracCell : fracCells)
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{
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bool cellIsActive = activeCellInfo->isActive(fracCell);
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if (!cellIsActive) continue;
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double permX = dataAccessObjectPermX->cellScalarGlobIdx(fracCell);
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double permY = dataAccessObjectPermY->cellScalarGlobIdx(fracCell);
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double permZ = dataAccessObjectPermZ->cellScalarGlobIdx(fracCell);
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double dx = dataAccessObjectDx->cellScalarGlobIdx(fracCell);
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double dy = dataAccessObjectDy->cellScalarGlobIdx(fracCell);
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double dz = dataAccessObjectDz->cellScalarGlobIdx(fracCell);
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double NTG = dataAccessObjectNTG->cellScalarGlobIdx(fracCell);
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cvf::Vec3d localX;
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cvf::Vec3d localY;
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cvf::Vec3d localZ;
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std::vector<std::vector<cvf::Vec3d> > planeCellPolygons;
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bool isPlanIntersected = planeCellIntersectionPolygons(fracCell, planeCellPolygons, localX, localY, localZ);
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if (!isPlanIntersected || planeCellPolygons.size() == 0) continue;
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//Transform planCell polygon(s) and averageZdirection to x/y coordinate system (where fracturePolygon already is located)
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cvf::Mat4f invertedTransMatrix = m_fractureTransform.getInverted();
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for (std::vector<cvf::Vec3d> & planeCellPolygon : planeCellPolygons)
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{
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for (cvf::Vec3d& v : planeCellPolygon)
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{
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v.transformPoint(static_cast<cvf::Mat4d>(invertedTransMatrix));
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}
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}
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cvf::Vec3d localZinFracPlane;
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localZinFracPlane = localZ;
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localZinFracPlane.transformVector(static_cast<cvf::Mat4d>(invertedTransMatrix));
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cvf::Vec3d directionOfLength = cvf::Vec3d::ZERO;
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directionOfLength.cross(localZinFracPlane, cvf::Vec3d(0, 0, 1));
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directionOfLength.normalize();
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std::vector<std::vector<cvf::Vec3d> > polygonsForStimPlanCellInEclipseCell;
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cvf::Vec3d areaVector;
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std::vector<cvf::Vec3d> stimPlanPolygon = m_stimPlanCell.getPolygon();
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for (std::vector<cvf::Vec3d> planeCellPolygon : planeCellPolygons)
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{
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std::vector<std::vector<cvf::Vec3d> >clippedPolygons = RigCellGeometryTools::clipPolygons(planeCellPolygon, stimPlanPolygon);
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for (std::vector<cvf::Vec3d> clippedPolygon : clippedPolygons)
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{
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polygonsForStimPlanCellInEclipseCell.push_back(clippedPolygon);
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}
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}
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if (polygonsForStimPlanCellInEclipseCell.size() == 0) continue;
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double area;
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std::vector<double> areaOfFractureParts;
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double length;
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std::vector<double> lengthXareaOfFractureParts;
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double Ax = 0.0, Ay = 0.0, Az = 0.0;
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for (std::vector<cvf::Vec3d> fracturePartPolygon : polygonsForStimPlanCellInEclipseCell)
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{
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areaVector = cvf::GeometryTools::polygonAreaNormal3D(fracturePartPolygon);
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area = areaVector.length();
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areaOfFractureParts.push_back(area);
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//TODO: the l in the sl/pi term in the denominator of the Tmj expression should be the length of the full Eclipse cell
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//In the current form the implementation gives correct result only if s=0 (fracture templte skin factor).
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length = RigCellGeometryTools::polygonAreaWeightedLength(directionOfLength, fracturePartPolygon);
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lengthXareaOfFractureParts.push_back(length * area);
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cvf::Plane fracturePlane;
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bool isCellIntersected = false;
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fracturePlane.setFromPointAndNormal(static_cast<cvf::Vec3d>(m_fractureTransform.translation()),
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static_cast<cvf::Vec3d>(m_fractureTransform.col(2)));
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Ax += abs(area*(fracturePlane.normal().dot(localY)));
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Ay += abs(area*(fracturePlane.normal().dot(localX)));
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Az += abs(area*(fracturePlane.normal().dot(localZ)));
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}
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double fractureArea = 0.0;
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for (double area : areaOfFractureParts) fractureArea += area;
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double totalAreaXLength = 0.0;
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for (double lengtXarea : lengthXareaOfFractureParts) totalAreaXLength += lengtXarea;
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double fractureAreaWeightedlength = totalAreaXLength / fractureArea;
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double transmissibility_X = calculateMatrixTransmissibility(permY, NTG, Ay, dx, m_fractureSkinFactor, fractureAreaWeightedlength);
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double transmissibility_Y = calculateMatrixTransmissibility(permX, NTG, Ax, dy, m_fractureSkinFactor, fractureAreaWeightedlength);
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double transmissibility_Z = calculateMatrixTransmissibility(permZ, 1.0, Az, dz, m_fractureSkinFactor, fractureAreaWeightedlength);
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double transmissibility = sqrt(transmissibility_X * transmissibility_X
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+ transmissibility_Y * transmissibility_Y
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+ transmissibility_Z * transmissibility_Z);
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m_globalIndeciesToContributingEclipseCells.push_back(fracCell);
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m_contributingEclipseCellTransmissibilities.push_back(transmissibility);
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}
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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std::vector<size_t> RigEclipseToStimPlanCellTransmissibilityCalculator::getPotentiallyFracturedCellsForPolygon(std::vector<cvf::Vec3d> polygon)
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{
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std::vector<size_t> cellIndices;
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const RigMainGrid* mainGrid = m_case->eclipseCaseData()->mainGrid();
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if (!mainGrid) return cellIndices;
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cvf::BoundingBox polygonBBox;
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for (cvf::Vec3d nodeCoord : polygon) polygonBBox.add(nodeCoord);
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mainGrid->findIntersectingCells(polygonBBox, &cellIndices);
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return cellIndices;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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bool RigEclipseToStimPlanCellTransmissibilityCalculator::planeCellIntersectionPolygons(size_t cellindex,
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std::vector<std::vector<cvf::Vec3d> > & polygons,
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cvf::Vec3d & localX,
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cvf::Vec3d & localY,
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cvf::Vec3d & localZ)
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{
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cvf::Plane fracturePlane;
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bool isCellIntersected = false;
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fracturePlane.setFromPointAndNormal(static_cast<cvf::Vec3d>(m_fractureTransform.translation()),
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static_cast<cvf::Vec3d>(m_fractureTransform.col(2)));
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const RigMainGrid* mainGrid = m_case->eclipseCaseData()->mainGrid();
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if (!mainGrid) return false;
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RigCell cell = mainGrid->globalCellArray()[cellindex];
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if (cell.isInvalid()) return mainGrid;
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//Copied (and adapted) from RigEclipseWellLogExtractor
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cvf::Vec3d hexCorners[8];
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const std::vector<cvf::Vec3d>& nodeCoords = mainGrid->nodes();
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const caf::SizeTArray8& cornerIndices = cell.cornerIndices();
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hexCorners[0] = nodeCoords[cornerIndices[0]];
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hexCorners[1] = nodeCoords[cornerIndices[1]];
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hexCorners[2] = nodeCoords[cornerIndices[2]];
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hexCorners[3] = nodeCoords[cornerIndices[3]];
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hexCorners[4] = nodeCoords[cornerIndices[4]];
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hexCorners[5] = nodeCoords[cornerIndices[5]];
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hexCorners[6] = nodeCoords[cornerIndices[6]];
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hexCorners[7] = nodeCoords[cornerIndices[7]];
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//Find line-segments where cell and fracture plane intersects
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std::list<std::pair<cvf::Vec3d, cvf::Vec3d > > intersectionLineSegments;
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isCellIntersected = RigCellGeometryTools::planeHexCellIntersection(hexCorners, fracturePlane, intersectionLineSegments);
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RigCellGeometryTools::createPolygonFromLineSegments(intersectionLineSegments, polygons);
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RigCellGeometryTools::findCellLocalXYZ(hexCorners, localX, localY, localZ);
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return isCellIntersected;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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double RigEclipseToStimPlanCellTransmissibilityCalculator::calculateMatrixTransmissibility(double perm,
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double NTG,
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double A,
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double cellSizeLength,
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double skinfactor,
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double fractureAreaWeightedlength)
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{
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double transmissibility;
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double slDivPi = (skinfactor * fractureAreaWeightedlength) / cvf::PI_D;
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transmissibility = 8 * m_cDarcy * (perm * NTG) * A / (cellSizeLength + slDivPi);
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return transmissibility;
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}
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