COALNUM
Recognised by the OPM Flow parserGRID
The COALNUM keyword defines the coal region numbers for each grid block used with the Coal Bed Methane option (“CBM”). OPM Flow does not have a CBM option; however, the keyword is documented here for completeness.
This keyword is not supported by OPM Flow but would change the results if supported so the simulation will be stopped.
Notes:
A total of NX x NY x NZ integer values, as defined by the DIMENS keyword in the RUNSPEC section, must be specified for the array.
If a cell is not assigned a COALNUM region then the default value of 1 will be used.
COALNUM value of 0 sets the cell be a non-coal region.
The keyword is terminated by a “/”.
- Records
- An array of values covering the grid
Parameters
| No. | Name | Description | Default |
|---|---|---|---|
| 1 | COALNUM | COALNUM defines an array of positive integers assigning a grid cell to a particular coal region. The maximum number of COALNUM regions is set by the NTCREG variable on REGDIMS keywords in the RUNSPEC section. | 1 |
Example
The example below sets three COALNUM regions for a 4 x 5 x 2 model.
--
-- DEFINE COALNUM REGIONS FOR ALL CELLS
--
COALNUM
2 2 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1
3 3 1 1 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1
/
The above will no effect in an OPM Flow input deck.Manual source: parts/chapters/subsections/6.3/COALNUM.fodt