---
name: "upscale_cond"
section: "1"
platform: "linux"
package: "libopm-upscaling-bin"
version: "2024.10+ds-1+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/upscale_cond"
---

# upscale\_cond(1)

Upscale electrical resistivity/conductivity

## NAME

upscale\_cond - Upscale electrical resistivity/conductivity

## SYNOPSIS

upscale\_cond \[option value\] \[grid file\] \[J-function file 1\] \[J-function file 2\] \[J-function file 3\] ...

## DESCRIPTION

Reads in a lithofacies geometry in Eclipse format, reads in J(S\_w) for each rock type, and calculates upscaled resistivity values for values of water saturation.

Example usage:

upscale\_cond -bc p grid.grdecl Jfunc1.datan Jfunc2.data

## OPTIONS

**-bc** Which boundary conditions to use. Possible values are p (periodic), f (fixed) or l (linear). Defaults to f.\
 **-points** Number of saturation points to upscale for, uniformly distributed. Defaults to 30.\
 **-resistivityCutoff** Cut-off value for resistivity. Defaults to 10000.\
 **-lithologyCoeff** Archie parameter. Defaults to 1.0.\
 **-cementationExponent** Archie parameter. Defaults to 1.8.\
 **-saturationExponent** Archie parameter. Defaults to 2.3.\
 **-waterresistivity** Resistivity of formation water.\
 **-mudresistivity** Resistivity of mud. Defaults to 1.4.\
 **-mud1rocktype** First mud rock type, 0 if there are no mud types. Defaults to 0.\
 **-mud2rocktype** Second mud rock type. Defaults to 0.\
 **-jFunctionCurve** Which column in the supplied J-files corresponds to the J-function values. Defaults to 2.\
 **-surfaceTension** Surface tension in dynes/cm to use in J-function/Pc conversion. Defaults to 11.\
 **-output** Filename for where to write upscaled values.\
 **-interpolate** If supplied and \> 1, the output will be interpolated using monotone cubic interpolation on a uniform grid with the specified number of points. Suggested value: 1000.\
 **-rock\<int\>cemexp \<float\>** Cementation exponent can be set on a per rocktype basis.\
 **-rock\<int\>satexp \<float\>** Saturation exponent can be set on a per rocktype basis.

## REPORTING BUGS

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

## SEE ALSO

upscale\_perm