SPECGRID
Recognised by the OPM Flow parserGRID
SPECGRID defines the dimensions of corner-point and radial grids in the x, y, and z directions as well as the number of reservoirs, where each reservoir has its own set of corner-point geometry data.
The keyword can only be used with Irregular Corner-Point Grids and Radial Grids.
Notes:
The dimensions are also entered on the DIMENS keyword in the RUNSPEC section and the two sets of numbers should be consistent.
The keyword is terminated by a “/”.
See also the COORD, COORDSYS and ZCORN keywords to fully define an Irregular Corner-Point Grid.
- Records
- Fixed number of records
- Record count
- 1
- Items per record
- 5
Parameters
| No. | Name | Description | Type | Default |
|---|---|---|---|---|
| 1 | NXmanual: NDIVIX | A positive integer value that defines the number of cells in the X or R direction | INT | 1 |
| 2 | NYmanual: NDIVIY | A positive integer value that defines the number of cells in the Y or THETA direction | INT | 1 |
| 3 | NZmanual: NDIVZ | A positive integer value that defines the number of cells in the Z direction | INT | 1 |
| 4 | NUMRES | A positive integer values that defines number of coordinate data sets, or independent reservoirs in the model. OPM Flow currently only accepts a single data set, that is the default value of one. | INT | 1 |
| 5 | COORD_manual: TYPE | A character string set to either T of F that defines the type of grid to be defined by subsequent keywords: T = Radial grid with radial coordinates F = Cartesian grid Only the default option F is supported by OPM Flow. | STRING | F |
Example
--
-- MAX MAX MAX MAX GRID
-- NDIVIX NDIVIY NDIVIZ NUMRES TYPE
SPECGRID
46 112 22 1 F /
The above example defines a 46 x 112 x 22 grid with one set of irregular corner-point data.Manual source: parts/chapters/subsections/6.3/SPECGRID.fodt