GRAV_SUBS_MAPS
Modelling maps of gravity change and subsidence from flow simulation output (EGRID, INIT and UNRST files).
The script reads flow simulation results and a yaml configuration file specifying input and calculation parameters. Output is surfaces in irap binary format. For configuration of the yaml config file, see: https://fmu-docs.equinor.com/docs/subscript/scripts/grav_subs_maps.html
usage: grav_subs_maps [-h] -c CONFIGFILE [-o OUTPUTDIR] [--version] UNRSTfile
Positional Arguments
- UNRSTfile
Path to flowsimulator UNRST file
Named Arguments
- -c, -C, --configfile
Name of YAML config file
- -o, --outputdir
Path to directory for output maps. Directory must exist.
Default: “./”
- --version
show program’s version number and exit
# Example config file for grav_subs_maps
input:
diffdates:
- [2020-07-01, 2018-01-01] # Difference date to model. Must exist in UNRST file.
seabed_map: seabed.gri # Path to file with seabed, irap binary format.
calculations:
poisson_ratio: 0.45 # For subsidence calulcations, used in Geertsma model
coarsening: 8 # Coarsening factor for maps to speed up calculations
phases: ["gas", "oil", "water", "total"] # One map for each phase specified
Include dates
Instead of specifying the modelling dates directly in the yaml config file it is possible to include them from another yaml file:
input:
diffdates: !include_from global_variables.yml::global.dates.GRAVITY_DIFFDATES
This is an advantage if the dates in the global config is used also for other jobs. In this example the included file looks like this:
# example global config file with dates
global:
dates:
GRAVITY_DIFFDATES:
- - 2020-07-01
- 2018-01-01
The output files
The output from this job are maps in irap binary format. For each difference date there will be one subsidence map and one or more gravity change maps (depending on which phases are specified to model).
The naming of the output files have been standardised to:
The “all” prefix is indicating that the contributions from all zones is summed.