Man page - cpchop_depthtrend(1)

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Manual

CPCHOP_DEPTHTREND

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
REPORTING BUGS
SEE ALSO

NAME

cpchop_depthtrend - Upscale simple statistics

SYNOPSIS

cpchop_depthtrend gridfilename=cornerpointgrid.grdecl [option=value]

DESCRIPTION

This program is a variant of cpchop. Instead of subsampling randomly, it picks subsamples downwards in a model. It is specifically designed for extracting laterally extensive subsamples in specified intervals downwards through a model, in order to analyze depth trends in porosity in particular.

Example usage:

cpchop_depthtrend gridfilename=cornerpointgrid.grdecl subsamples=100 ilen=5 jlen=5 zlen=5

OPTIONS

zresolution Vertical distance between subsamples. Defaults to 1.
subsamples Number of subsamples. Defaults to 1.
filebase If supplied, grdecl-files for each subsample will be written to files named using this filebase, it may include directory names.
resultfile Name of a textfile to output table of results per subsample to.
ilen Length in i-direction of subsample, specified in number of cells. Defaults to all cells in i-direction.
jlen Length in j-direction of subsample, specified in number of cells. Defaults to all cells in j-direction.
zlen Length in z-direction of subsample, specified in the grids length unit (typically cm or m). Defaults to full height.
imin Can be used to limit the search area for random subsamples. Defaults to minimum i in inputgrid (full model).
imax Can be used to limit the search area for random subsamples. Defaults to maximum i in inputgrid (full model).
jmin Analog to imin, but in j-direction. Defaults to minimum j in inputgrid (full model).
jmax Analog to imax, but in j-direction. Defaults to maximum j in inputgrid (full model).
zmin Analog to imin, but in z-direction and specified in the grids length unit. Defaults to minimum in inputgrid.
zmax Analog to imax, but in z-direction and specified in the grids length unit. Defaults to maximum in inputgrid.
upscale Boolean for whether to do upscaling on the subsamples, either true or false. If the objective is to obtain a grdecl-file for the subsample, set to false for run time. Defaults to true.
bc Boundary condition type for upscaling, either fixed or periodic. Defaults to fixed.
resettoorigin If true, outputted grdecl-file will have its ZCORN-values and COORDS-values shifted so that the model is defined at the origin. If false, the outputted grdecl-file will be located in its original position. Defaults to true.

REPORTING BUGS

Report on github repository <https://github.com/OPM/opm-upscaling/issues>