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ResInsight/ApplicationCode/ReservoirDataModel/RigEclipseWellLogExtractor.cpp

299 lines
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C++

/////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) Statoil ASA
// Copyright (C) Ceetron Solutions AS
//
// 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.
//
/////////////////////////////////////////////////////////////////////////////////
#include "RigEclipseWellLogExtractor.h"
#include <map>
#include "RigCaseData.h"
#include "RigWellPath.h"
#include "RigResultAccessor.h"
#include "cvfBoundingBox.h"
#include "cvfGeometryTools.h"
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
RigEclipseWellLogExtractor::RigEclipseWellLogExtractor(const RigCaseData* aCase, const RigWellPath* wellpath)
: m_caseData(aCase), m_wellPath(wellpath)
{
calculateIntersection();
}
//--------------------------------------------------------------------------------------------------
/// Internal class for intersection point info
//--------------------------------------------------------------------------------------------------
struct HexIntersectionInfo
{
public:
HexIntersectionInfo( cvf::Vec3d intersectionPoint,
bool isIntersectionEntering,
cvf::StructGridInterface::FaceType face,
size_t hexIndex)
: m_intersectionPoint(intersectionPoint),
m_isIntersectionEntering(isIntersectionEntering),
m_face(face),
m_hexIndex(hexIndex) {}
cvf::Vec3d m_intersectionPoint;
bool m_isIntersectionEntering;
cvf::StructGridInterface::FaceType m_face;
size_t m_hexIndex;
};
//--------------------------------------------------------------------------------------------------
/// Specialized Line - Hex intersection
//--------------------------------------------------------------------------------------------------
int lineHexCellIntersection(const cvf::Vec3d p1, const cvf::Vec3d p2, const cvf::Vec3d hexCorners[8], const size_t hexIndex,
std::vector<HexIntersectionInfo>* intersections )
{
CVF_ASSERT(intersections != NULL);
int intersectionCount = 0;
for (int face = 0; face < 6 ; ++face)
{
cvf::ubyte faceVertexIndices[4];
cvf::StructGridInterface::cellFaceVertexIndices(static_cast<cvf::StructGridInterface::FaceType>(face), faceVertexIndices);
cvf::Vec3d intersection;
bool isEntering = false;
cvf::Vec3d faceCenter = cvf::GeometryTools::computeFaceCenter( hexCorners[faceVertexIndices[0]], hexCorners[faceVertexIndices[1]], hexCorners[faceVertexIndices[2]], hexCorners[faceVertexIndices[3]]);
for (int i = 0; i < 4; ++i)
{
int next = i < 3 ? i+1 : 0;
int intsStatus = cvf::GeometryTools::intersectLineSegmentTriangle(p1, p2,
hexCorners[faceVertexIndices[i]], hexCorners[faceVertexIndices[next]], faceCenter,
&intersection,
&isEntering);
if (intsStatus == 1)
{
intersectionCount++;
intersections->push_back(HexIntersectionInfo(intersection, isEntering, static_cast<cvf::StructGridInterface::FaceType>(face), hexIndex));
}
}
}
return intersectionCount;
}
//--------------------------------------------------------------------------------------------------
/// Class used to sort the intersections along the wellpath
//--------------------------------------------------------------------------------------------------
struct WellPathDepthPoint
{
WellPathDepthPoint(double md, bool entering): measuredDepth(md), isEnteringCell(entering){}
double measuredDepth;
bool isEnteringCell; // As opposed to leaving.
bool operator < (const WellPathDepthPoint& other) const
{
double depthDiff = other.measuredDepth - measuredDepth;
const double tolerance = 1e-6;
if (fabs(depthDiff) < tolerance) // Equal depth
{
if (isEnteringCell == other.isEnteringCell)
{
CVF_ASSERT(false); // For now
return false; // Completely equal
}
if(!isEnteringCell) // Leaving this cell
{
return true;
}
else
{
return false;
}
}
// The depths are not equal
if (measuredDepth < other.measuredDepth)
{
return true;
}
else if (measuredDepth > other.measuredDepth)
{
return false;
}
CVF_ASSERT(false);
return false;
}
};
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RigEclipseWellLogExtractor::calculateIntersection()
{
const std::vector<cvf::Vec3d>& nodeCoords = m_caseData->mainGrid()->nodes();
double globalMeasuredDepth = 0; // Where do we start ? z - of first well path point ?
for (size_t wpp = 0; wpp < m_wellPath->m_wellPathPoints.size() - 1; ++wpp)
{
cvf::BoundingBox bb;
cvf::Vec3d p1 = m_wellPath->m_wellPathPoints[wpp];
cvf::Vec3d p2 = m_wellPath->m_wellPathPoints[wpp+1];
bb.add(p1);
bb.add(p2);
std::vector<size_t> closeCells = findCloseCells(bb );
std::vector<HexIntersectionInfo> intersections;
cvf::Vec3d hexCorners[8];
for (size_t cIdx = 0; cIdx < closeCells.size(); ++cIdx)
{
const RigCell& cell = m_caseData->mainGrid()->cells()[closeCells[cIdx]];
const caf::SizeTArray8& cornerIndices = cell.cornerIndices();
hexCorners[0] = nodeCoords[cornerIndices[0]];
hexCorners[1] = nodeCoords[cornerIndices[1]];
hexCorners[2] = nodeCoords[cornerIndices[2]];
hexCorners[3] = nodeCoords[cornerIndices[3]];
hexCorners[4] = nodeCoords[cornerIndices[4]];
hexCorners[5] = nodeCoords[cornerIndices[5]];
hexCorners[6] = nodeCoords[cornerIndices[6]];
hexCorners[7] = nodeCoords[cornerIndices[7]];
int intersectionCount = lineHexCellIntersection(p1, p2, hexCorners, closeCells[cIdx], &intersections);
}
// Now, with all the intersections of this piece of line, we need to
// sort them in order, and set the measured depth and corresponding cell index
// map <WellPathDepthPoint, (CellIdx, intersectionPoint)>
std::map<WellPathDepthPoint, HexIntersectionInfo > sortedIntersections;
for (size_t intIdx = 0; intIdx < intersections.size(); ++intIdx)
{
double lenghtAlongLineSegment = (intersections[intIdx].m_intersectionPoint - p1).length();
double measuredDepthOfPoint = globalMeasuredDepth + lenghtAlongLineSegment;
sortedIntersections.insert(std::make_pair(WellPathDepthPoint(measuredDepthOfPoint, intersections[intIdx].m_isIntersectionEntering), intersections[intIdx]));
}
// Now populate the return arrays
std::map<WellPathDepthPoint, HexIntersectionInfo >::iterator it;
it = sortedIntersections.begin();
while (it != sortedIntersections.end())
{
m_measuredDepth.push_back(it->first.measuredDepth);
m_trueVerticalDepth.push_back(it->second.m_intersectionPoint[2]);
m_intersections.push_back(it->second.m_intersectionPoint);
m_intersectedCells.push_back(it->second.m_hexIndex);
m_intersectedCellFaces.push_back(it->second.m_face);
++it;
}
// Increment the measured depth
globalMeasuredDepth += (p2-p1).length();
}
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void RigEclipseWellLogExtractor::curveData(const RigResultAccessor* resultAccessor, std::vector<double>* values)
{
CVF_TIGHT_ASSERT(values);
values->resize(m_intersections.size());// + 1); // Plus one for the end of the wellpath stopping inside a cell
for (size_t cpIdx = 0; cpIdx < m_intersections.size(); ++cpIdx)
{
size_t cellIdx = m_intersectedCells[cpIdx];
cvf::StructGridInterface::FaceType cellFace = m_intersectedCellFaces[cpIdx];
(*values)[cpIdx] = resultAccessor->cellFaceScalarGlobIdx(cellIdx, cellFace);
}
// What do we do with the endpoint of the wellpath ?
// Ignore it for now ...
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
std::vector<size_t> RigEclipseWellLogExtractor::findCloseCells(const cvf::BoundingBox& bb)
{
const std::vector<RigCell>& cells = m_caseData->mainGrid()->cells();
const std::vector<cvf::Vec3d>& nodeCoords = m_caseData->mainGrid()->nodes();
std::vector<size_t> closeCells;
size_t cellCount = cells.size();
for (size_t cIdx = 0; cIdx < cellCount; ++cIdx)
{
const caf::SizeTArray8& cellIndices = cells[cIdx].cornerIndices();
cvf::BoundingBox cellBB;
cellBB.add(nodeCoords[cellIndices[0]]);
cellBB.add(nodeCoords[cellIndices[1]]);
cellBB.add(nodeCoords[cellIndices[2]]);
cellBB.add(nodeCoords[cellIndices[3]]);
cellBB.add(nodeCoords[cellIndices[4]]);
cellBB.add(nodeCoords[cellIndices[5]]);
cellBB.add(nodeCoords[cellIndices[6]]);
cellBB.add(nodeCoords[cellIndices[7]]);
if (bb.intersects(cellBB))
{
closeCells.push_back(cIdx);
}
}
return closeCells;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
const std::vector<double>& RigEclipseWellLogExtractor::measuredDepth()
{
return m_measuredDepth;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
const std::vector<double>& RigEclipseWellLogExtractor::trueVerticalDepth()
{
return m_trueVerticalDepth;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
const std::vector<size_t>& RigEclipseWellLogExtractor::cellIndicesPrSegment()
{
CVF_ASSERT(false); // Not implemented
return m_globalCellIndicesPrSegment;
}