INRAD

Recognised by the OPM Flow parserGRID

INRAD defines the inner radius of the reservoir model for a radial grid geometry. The RADIAL or SPIDER keyword in the RUNSPEC should be activated to indicate that radial geometry is being used.

Notes:

The keyword is terminated by a “/”.

Note that the SPIDER keyword activates OPM Flow’s radial grid geometry option for the model. This keyword will create a spiderweb-shaped grid based on a corner-point grid using the standard radial grid keywords: INRAD, DRV, DTHETAV, DZ/DZV etc. in the GRID the section. Spider and Radial grids generated by OPM Flow will be displayed the same in OPM ResInsight, as they are both output as Cartesian Irregular Corner-Point Grids. The difference is that the radial model’s pore volumes are adjusted to match the radial geometry pore volumes, whereas the Spider grid volumes are not adjusted.

See also the DR, DRV, DTHETA, DTHETAV and TOPS keywords to fully define a radial or spider grid in the model.

Records

Fixed number of records

Record count

1

Items per record

1

Parameters

Example

--
-- INNER RADIUS OF FIRST GRID BLOCK IN THE RADIAL DIRECTION
--
INRAD
0.25 /
The above example defines the inner radius of a radial grid to be 0.25 feet.

Manual source: parts/chapters/subsections/6.3/INRAD.fodt