`TRKPF`

Recognised by the OPM Flow parserREGIONS

The TRKPF keyword defines the regions associated with the series of partition tracers and the partitioning tables allocated to grid blocks in the model, for when the Partitioned Tracer option has been enabled by the PARTTRAC keyword in the RUNSPEC section. The maximum number of tracers for each phase are declared on the TRACERS keyword in the RUNSPEC section. Unlike other keywords, the TRKPF keyword must be concatenated with the name of the tracer declared by TRACER keyword in the PROPS section. Table 9.26outlines the format of the TRKPF keyword name.

This keyword is not supported by OPM Flow but would change the results if supported so the simulation will be stopped.

Following the declaration of the full keyword name, TRKPFNAME, the keyword is followed by the data as outlined below.

Notes:

The number of entries should correspond to the NX x NY x NZ parameters on the DIMENS keyword in the RUNSPEC section, unless the BOX keyword defines a sub area of the grid, in which case the total number of entries should correspond to the number of cells defined by the BOX statement.

If a cell is not assigned a TRKPFREG region then the default value will be used.

The keyword is terminated by a “/”.

See also the TRACER and TRACERKP keywords in the PROPS section and the TBLK keyword in the SOLUTION section.

Records: An array of values covering the grid

Parameters

No.	Name	Description	Default
1	`TRKPFREG`	TRKPFREG defines an array of positive integers assigning a grid cell to a particular tracer table region. The maximum number of TRKPFREG regions is set by the NTTRVD variable on the EQLDIMS keyword in the RUNSPEC section.	1

Example

First define one mult-partitioned tracer for the water phase.
--
-- DEFINE TRACER NAMES
--
-- TRACER TRACER TRACER PARTITION NUM ADSOR
-- NAME PHASE VOLUME PHASE K(P) PHASE
-- ------ ------ ------ --------- ---- -----
TRACER
'WAT' 'WAT' 1* MULT 2 ALL / WAT
/
Then for a given a 100 x 100 x 5 grid assign the partitioned tracer regions and K(P) tables, based on two regions.
--
-- DEFINE PARTITIONED TRACER REGIONS
--
TRKPFWAT
1000*1
1000*1
1000*2
1000*2
1000*2
/
The keyword name is derived from the TRKPF keyword, plus the tracer name declared in the TRACER keyword, in this case the keyword name is TRKPFWAT.

Manual source: parts/chapters/subsections/9.3/TRKPF.fodt