`PLYMAX`

Recognised by the OPM Flow parserPROPSSPECIAL

Variant 1 — PROPS section

The PLYMAX keyword defines maximum polymer and salt concentrations that are to be used in the mixing parameter calculation of the fluid component viscosities, for when the Polymer option has been activated by the POLYMER keyword in the RUNSPEC section.

Note that If the BRINE option has not be activated by the BRINE keyword in the RUNSPEC section, then the salt concentrations in the second column are ignored.

Notes:

The keyword is followed by NPLMIX tables as declared on the REGDIMS keyword in the RUNSPEC section, for each rock region. There should be only one row per table.

Each table is terminated by a “/” and there is no “/” terminator for the keyword.

Note

Currently, combining the BRINE and POLYMER models is not implemented in OPM Flow, and therefore SALTCON parameter on the PLYMAX keyword is ignored.

Records: Fixed number of records
Items per record: 2

Parameters

No.	Name	Description	Type	Dimension	Field	Metric	Lab	Default
1	`MAX_POLYMER_CONCENTRATION` manual: `POLCON`	A real value that defines the polymer concentration in the solution which is used to calculate maximum polymer fluid component viscosity.	DOUBLE	Concentration	lb/stb	kg/sm3	gm/scc	None
2	`MAX_SALT_CONCENTRATION` manual: `SALTCON`	A real value that defines the salt concentration in the solution which is used to calculate maximum polymer fluid component viscosity. Note that If the BRINE option has not been activated by the BRINE keyword in the RUNSPEC section, then this variable is ignored; however, there should still be dummy entries in this case. This variable is ignored as the BRINE and POLYMER combination is not implemented in OPM Flow.	DOUBLE	Concentration	lb/stb	kg/sm3	gm/scc	None

Example

--
-- POLYMER-SALT VISCOSITY MIXING CONCENTRATIONS
--
PLYMAX
-- POLYMER SALT
-- POLCON SALTCON
-- ------- --------
0.0100 0.0500 / TABLE NO. 01
0.0075 0.0400 / TABLE NO. 02
0.0050 0.0300 / TABLE NO. 03
The above example defines three polymer-salt viscosity mixing concentrations, based on the NPLMIX variable on the REGDIMS keyword in the RUNSPEC section being equal to three.
| Note Currently, combining the BRINE and POLYMER models is not implemented in OPM Flow, and therefore SALTCON parameter on the PLYMAX keyword is ignored. |
|----------------------------------------------------------------------------------------------------------------------------------------------------------|

Manual source: parts/chapters/subsections/8.3/PLYMAX.fodt

Variant 2 — SCHEDULE section

The PLYMAX keyword defines maximum polymer and salt concentrations that are to be used in the mixing parameter calculation of the fluid component viscosities, for when the polymer option has been activated by the POLYMER keyword in the RUNSPEC section.

See PLYMAX - Define Polymer-Salt Viscosity Mixing Concentrationsin the PROPS section for a full description.

Records: Fixed number of records
Items per record: 2

Manual source: parts/chapters/subsections/12.3/PLYMAX.fodt