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CornerpointChopper.hpp
/*
Copyright 2010 SINTEF ICT, Applied Mathematics.
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 3 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/>.
*/
#ifndef OPM_CORNERPOINTCHOPPER_HEADER_INCLUDED
#define OPM_CORNERPOINTCHOPPER_HEADER_INCLUDED
#include <opm/input/eclipse/Parser/Parser.hpp>
#include <opm/input/eclipse/Units/UnitSystem.hpp>
#include <opm/input/eclipse/Deck/Deck.hpp>
#include <opm/input/eclipse/Deck/DeckKeyword.hpp>
#include <opm/input/eclipse/Deck/DeckRecord.hpp>
#include <opm/input/eclipse/Deck/DeckItem.hpp>
#include <iostream>
#include <fstream>
#include <string>
#include <vector>
#include <stdexcept>
#include <memory>
namespace Opm
{
class CornerPointChopper
{
public:
explicit CornerPointChopper(const std::string& file) :
parser_(Parser{}),
deck_(parser_.parseFile(file)),
metricUnits_(Opm::UnitSystem::newMETRIC())
{
const auto& specgridRecord = deck_["SPECGRID"].back().getRecord(0);
dims_[0] = specgridRecord.getItem("NX").get< int >(0);
dims_[1] = specgridRecord.getItem("NY").get< int >(0);
dims_[2] = specgridRecord.getItem("NZ").get< int >(0);
int layersz = 8*dims_[0]*dims_[1];
const std::vector<double>& ZCORN = deck_["ZCORN"].back().getRawDoubleData();
botmax_ = *std::max_element(ZCORN.begin(), ZCORN.begin() + layersz/2);
topmin_ = *std::min_element(ZCORN.begin() + dims_[2]*layersz - layersz/2,
ZCORN.begin() + dims_[2]*layersz);
abszmax_ = *std::max_element(ZCORN.begin(), ZCORN.end());
abszmin_ = *std::min_element(ZCORN.begin(), ZCORN.end());
std::cout << "Parsed grdecl file with dimensions ("
<< dims_[0] << ", " << dims_[1] << ", " << dims_[2] << ")" << std::endl;
}
const int* dimensions() const
{
return dims_;
}
const int* newDimensions() const
{
return new_dims_;
}
const std::pair<double, double> zLimits() const
{
return std::make_pair(botmax_, topmin_);
}
const std::pair<double, double> abszLimits() const
{
return std::make_pair(abszmin_, abszmax_);
}
void verifyInscribedShoebox(int imin, int ilen, int imax,
int jmin, int jlen, int jmax,
double zmin, double zlen, double zmax)
{
if (imin < 0) {
std::cerr << "Error! imin < 0 (imin = " << imin << ")\n";
throw std::runtime_error("Inconsistent user input.");
}
if (ilen > dims_[0]) {
std::cerr << "Error! ilen larger than grid (ilen = " << ilen <<")\n";
throw std::runtime_error("Inconsistent user input.");
}
if (imax > dims_[0]) {
std::cerr << "Error! imax larger than input grid (imax = " << imax << ")\n";
throw std::runtime_error("Inconsistent user input.");
}
if (jmin < 0) {
std::cerr << "Error! jmin < 0 (jmin = " << jmin << ")\n";
throw std::runtime_error("Inconsistent user input.");
}
if (jlen > dims_[1]) {
std::cerr << "Error! jlen larger than grid (jlen = " << jlen <<")\n";
throw std::runtime_error("Inconsistent user input.");
}
if (jmax > dims_[1]) {
std::cerr << "Error! jmax larger than input grid (jmax = " << jmax << ")\n";
throw std::runtime_error("Inconsistent user input.");
}
if (zmin < abszmin_) {
std::cerr << "Error! zmin ("<< zmin << ") less than minimum ZCORN value ("<< abszmin_ << ")\n";
throw std::runtime_error("Inconsistent user input.");
}
if (zmax > abszmax_) {
std::cerr << "Error! zmax ("<< zmax << ") larger than maximal ZCORN value ("<< abszmax_ << ")\n";
throw std::runtime_error("Inconsistent user input.");
}
if (zlen > (abszmax_ - abszmin_)) {
std::cerr << "Error! zlen ("<< zlen <<") larger than maximal ZCORN (" << abszmax_ << ") minus minimal ZCORN ("<< abszmin_ <<")\n";
throw std::runtime_error("Inconsistent user input.");
}
}
void chop(int imin, int imax, int jmin, int jmax, double zmin, double zmax, bool resettoorigin=true)
{
new_dims_[0] = imax - imin;
new_dims_[1] = jmax - jmin;
// Filter the coord field
const std::vector<double>& COORD = deck_["COORD"].back().getRawDoubleData();
int num_coord = COORD.size();
if (num_coord != 6*(dims_[0] + 1)*(dims_[1] + 1)) {
std::cerr << "Error! COORD size (" << COORD.size() << ") not consistent with SPECGRID\n";
throw std::runtime_error("Inconsistent COORD and SPECGRID.");
}
int num_new_coord = 6*(new_dims_[0] + 1)*(new_dims_[1] + 1);
double x_correction = COORD[6*((dims_[0] + 1)*jmin + imin)];
double y_correction = COORD[6*((dims_[0] + 1)*jmin + imin) + 1];
new_COORD_.resize(num_new_coord, 1e100);
for (int j = jmin; j < jmax + 1; ++j) {
for (int i = imin; i < imax + 1; ++i) {
int pos = (dims_[0] + 1)*j + i;
int new_pos = (new_dims_[0] + 1)*(j-jmin) + (i-imin);
// Copy all 6 coordinates for a pillar.
std::copy(COORD.begin() + 6*pos, COORD.begin() + 6*(pos + 1), new_COORD_.begin() + 6*new_pos);
if (resettoorigin) {
// Substract lowest x value from all X-coords, similarly for y, and truncate in z-direction
new_COORD_[6*new_pos] -= x_correction;
new_COORD_[6*new_pos + 1] -= y_correction;
new_COORD_[6*new_pos + 2] = 0;
new_COORD_[6*new_pos + 3] -= x_correction;
new_COORD_[6*new_pos + 4] -= y_correction;
new_COORD_[6*new_pos + 5] = zmax-zmin;
}
}
}
// Get the z limits, check if they must be changed to make a shoe-box.
// This means that zmin must be greater than or equal to the highest
// coordinate of the bottom surface, while zmax must be less than or
// equal to the lowest coordinate of the top surface.
int layersz = 8*dims_[0]*dims_[1];
const std::vector<double>& ZCORN = deck_["ZCORN"].back().getRawDoubleData();
int num_zcorn = ZCORN.size();
if (num_zcorn != layersz*dims_[2]) {
std::cerr << "Error! ZCORN size (" << ZCORN.size() << ") not consistent with SPECGRID\n";
throw std::runtime_error("Inconsistent ZCORN and SPECGRID.");
}
zmin = std::max(zmin, botmax_);
zmax = std::min(zmax, topmin_);
if (zmin >= zmax) {
std::cerr << "Error: zmin >= zmax (zmin = " << zmin << ", zmax = " << zmax << ")\n";
throw std::runtime_error("zmin >= zmax");
}
std::cout << "Chopping subsample, i: (" << imin << "--" << imax << ") j: (" << jmin << "--" << jmax << ") z: (" << zmin << "--" << zmax << ")" << std::endl;
// We must find the maximum and minimum k value for the given z limits.
// First, find the first layer with a z-coordinate strictly above zmin.
int kmin = -1;
for (int k = 0; k < dims_[2]; ++k) {
double layer_max = *std::max_element(ZCORN.begin() + k*layersz, ZCORN.begin() + (k + 1)*layersz);
if (layer_max > zmin) {
kmin = k;
break;
}
}
// Then, find the last layer with a z-coordinate strictly below zmax.
int kmax = -1;
for (int k = dims_[2]; k > 0; --k) {
double layer_min = *std::min_element(ZCORN.begin() + (k - 1)*layersz, ZCORN.begin() + k*layersz);
if (layer_min < zmax) {
kmax = k;
break;
}
}
new_dims_[2] = kmax - kmin;
// Filter the ZCORN field, build mapping from new to old cells.
double z_origin_correction = 0.0;
if (resettoorigin) {
z_origin_correction = zmin;
}
new_ZCORN_.resize(8*new_dims_[0]*new_dims_[1]*new_dims_[2], 1e100);
new_to_old_cell_.resize(new_dims_[0]*new_dims_[1]*new_dims_[2], -1);
int cellcount = 0;
const int delta[3] = { 1, 2*dims_[0], 4*dims_[0]*dims_[1] };
const int new_delta[3] = { 1, 2*new_dims_[0], 4*new_dims_[0]*new_dims_[1] };
for (int k = kmin; k < kmax; ++k) {
for (int j = jmin; j < jmax; ++j) {
for (int i = imin; i < imax; ++i) {
new_to_old_cell_[cellcount++] = dims_[0]*dims_[1]*k + dims_[0]*j + i;
int old_ix = 2*(i*delta[0] + j*delta[1] + k*delta[2]);
int new_ix = 2*((i-imin)*new_delta[0] + (j-jmin)*new_delta[1] + (k-kmin)*new_delta[2]);
const int old_indices[8] = {old_ix, old_ix + delta[0],
old_ix + delta[1], old_ix + delta[1] + delta[0],
old_ix + delta[2], old_ix + delta[2] + delta[0],
old_ix + delta[2] + delta[1], old_ix + delta[2] + delta[1] + delta[0] };
const int new_indices[8] = {new_ix, new_ix + new_delta[0],
new_ix + new_delta[1], new_ix + new_delta[1] + new_delta[0],
new_ix + new_delta[2], new_ix + new_delta[2] + new_delta[0],
new_ix + new_delta[2] + new_delta[1], new_ix + new_delta[2] + new_delta[1] + new_delta[0] };
for (int cc = 0; cc < 8; ++cc) {
new_ZCORN_[new_indices[cc]] = std::min(zmax, std::max(zmin, ZCORN[old_indices[cc]])) - z_origin_correction;
}
}
}
}
filterIntegerField("ACTNUM", new_ACTNUM_);
filterDoubleField("PORO", new_PORO_);
filterDoubleField("NTG", new_NTG_);
filterDoubleField("SWCR", new_SWCR_);
filterDoubleField("SOWCR", new_SOWCR_);
filterDoubleField("PERMX", new_PERMX_);
filterDoubleField("PERMY", new_PERMY_);
filterDoubleField("PERMZ", new_PERMZ_);
filterIntegerField("SATNUM", new_SATNUM_);
}
Opm::Deck subDeck()
{
Opm::Deck subDeck;
Opm::DeckKeyword specGridKw(this->parser_.getKeyword("SPECGRID"));
Opm::DeckRecord specGridRecord;
auto nxItem = Opm::DeckItem("NX", int());
auto nyItem = Opm::DeckItem("NY", int());
auto nzItem = Opm::DeckItem("NZ", int());
auto numresItem = Opm::DeckItem("NUMRES", int());
auto coordTypeItem = Opm::DeckItem("COORD_TYPE", std::string());
nxItem.push_back(new_dims_[0]);
nyItem.push_back(new_dims_[1]);
nzItem.push_back(new_dims_[2]);
numresItem.push_back(1);
coordTypeItem.push_back("F");
specGridRecord.addItem(std::move(nxItem));
specGridRecord.addItem(std::move(nyItem));
specGridRecord.addItem(std::move(nzItem));
specGridRecord.addItem(std::move(numresItem));
specGridRecord.addItem(std::move(coordTypeItem));
specGridKw.addRecord(std::move(specGridRecord));
subDeck.addKeyword(std::move(specGridKw));
addDoubleKeyword_(subDeck, this->parser_.getKeyword("COORD"), /*dimension=*/"Length", new_COORD_);
addDoubleKeyword_(subDeck, this->parser_.getKeyword("ZCORN"), /*dimension=*/"Length", new_ZCORN_);
addIntKeyword_(subDeck, this->parser_.getKeyword("ACTNUM"), new_ACTNUM_);
addDoubleKeyword_(subDeck, this->parser_.getKeyword("PORO"), /*dimension=*/"1", new_PORO_);
addDoubleKeyword_(subDeck, this->parser_.getKeyword("NTG"), /*dimension=*/"1", new_NTG_);
addDoubleKeyword_(subDeck, this->parser_.getKeyword("SWCR"), /*dimension=*/"1", new_SWCR_);
addDoubleKeyword_(subDeck, this->parser_.getKeyword("SOWCR"), /*dimension=*/"1", new_SOWCR_);
addDoubleKeyword_(subDeck, this->parser_.getKeyword("PERMX"), /*dimension=*/"Permeability", new_PERMX_);
addDoubleKeyword_(subDeck, this->parser_.getKeyword("PERMY"), /*dimension=*/"Permeability", new_PERMY_);
addDoubleKeyword_(subDeck, this->parser_.getKeyword("PERMZ"), /*dimension=*/"Permeability", new_PERMZ_);
addIntKeyword_(subDeck, this->parser_.getKeyword("SATNUM"), new_SATNUM_);
return subDeck;
}
void writeGrdecl(const std::string& filename)
{
// Output new versions of SPECGRID, COORD, ZCORN, ACTNUM, PERMX, PORO, SATNUM.
std::ofstream out(filename.c_str());
if (!out) {
std::cerr << "Could not open file " << filename << "\n";
throw std::runtime_error("Could not open output file.");
}
out << "SPECGRID\n" << new_dims_[0] << ' ' << new_dims_[1] << ' ' << new_dims_[2]
<< " 1 F\n/\n\n";
out.precision(15);
out.setf(std::ios::scientific);
outputField(out, new_COORD_, "COORD", /* nl = */ 3);
outputField(out, new_ZCORN_, "ZCORN", /* nl = */ 4);
outputField(out, new_ACTNUM_, "ACTNUM");
outputField(out, new_PORO_, "PORO", 4);
if (hasNTG()) {outputField(out, new_NTG_, "NTG", 4);}
if (hasSWCR()) {outputField(out, new_SWCR_, "SWCR", 4);}
if (hasSOWCR()) {outputField(out, new_SOWCR_, "SOWCR", 4);}
outputField(out, new_PERMX_, "PERMX", 4);
outputField(out, new_PERMY_, "PERMY", 4);
outputField(out, new_PERMZ_, "PERMZ", 4);
outputField(out, new_SATNUM_, "SATNUM");
}
bool hasNTG() const {return !new_NTG_.empty(); }
bool hasSWCR() const {return !new_SWCR_.empty(); }
bool hasSOWCR() const {return !new_SOWCR_.empty(); }
private:
Opm::Parser parser_;
Opm::Deck deck_;
Opm::UnitSystem metricUnits_;
double botmax_;
double topmin_;
double abszmin_;
double abszmax_;
std::vector<double> new_COORD_;
std::vector<double> new_ZCORN_;
std::vector<int> new_ACTNUM_;
std::vector<double> new_PORO_;
std::vector<double> new_NTG_;
std::vector<double> new_SWCR_;
std::vector<double> new_SOWCR_;
std::vector<double> new_PERMX_;
std::vector<double> new_PERMY_;
std::vector<double> new_PERMZ_;
std::vector<int> new_SATNUM_;
int dims_[3];
int new_dims_[3];
std::vector<int> new_to_old_cell_;
void addDoubleKeyword_(Deck& subDeck,
const ParserKeyword& keyword,
const std::string& dimensionString,
const std::vector<double>& data)
{
if (data.empty())
return;
Opm::DeckKeyword dataKw(keyword);
Opm::DeckRecord dataRecord;
auto dimension = metricUnits_.parse(dimensionString);
auto dataItem = Opm::DeckItem("DATA", double(), { dimension }, { dimension });
for (size_t i = 0; i < data.size(); ++i) {
dataItem.push_back(data[i]);
}
dataRecord.addItem(std::move(dataItem));
dataKw.addRecord(std::move(dataRecord));
subDeck.addKeyword(std::move(dataKw));
}
void addIntKeyword_(Deck& subDeck,
const ParserKeyword& keyword,
const std::vector<int>& data)
{
if (data.empty())
return;
Opm::DeckKeyword dataKw(keyword);
Opm::DeckRecord dataRecord;
auto dataItem = Opm::DeckItem("DATA", int());
for (size_t i = 0; i < data.size(); ++i) {
dataItem.push_back(data[i]);
}
dataRecord.addItem(std::move(dataItem));
dataKw.addRecord(std::move(dataRecord));
subDeck.addKeyword(std::move(dataKw));
}
template <typename T>
void outputField(std::ostream& os,
const std::vector<T>& field,
const std::string& keyword,
const typename std::vector<T>::size_type nl = 20)
{
if (field.empty()) return;
os << keyword << '\n';
typedef typename std::vector<T>::size_type sz_t;
const sz_t n = field.size();
for (sz_t i = 0; i < n; ++i) {
os << field[i]
<< (((i + 1) % nl == 0) ? '\n' : ' ');
}
if (n % nl != 0) {
os << '\n';
}
os << "/\n\n";
}
template <typename T>
void filterField(const std::vector<T>& field,
std::vector<T>& output_field)
{
int sz = new_to_old_cell_.size();
output_field.resize(sz);
for (int i = 0; i < sz; ++i) {
output_field[i] = field[new_to_old_cell_[i]];
}
}
void filterDoubleField(const std::string& keyword, std::vector<double>& output_field)
{
if (deck_.hasKeyword(keyword)) {
const std::vector<double>& field = deck_[keyword].back().getRawDoubleData();
filterField(field, output_field);
}
}
void filterIntegerField(const std::string& keyword, std::vector<int>& output_field)
{
if (deck_.hasKeyword(keyword)) {
const std::vector<int>& field = deck_[keyword].back().getIntData();
filterField(field, output_field);
}
}
};
}
#endif // OPM_CORNERPOINTCHOPPER_HEADER_INCLUDED
Opm::CornerPointChopper::subDeck
Opm::Deck subDeck()
Return a sub-deck with fields corresponding to the selected subset.
Definition CornerpointChopper.hpp:255
Opm
Inverting small matrices.
Definition ImplicitAssembly.hpp:43