SOCRS

Recognised by the OPM Flow parserPROPS

SOCRS defines the miscible critical oil saturation for all the cells in the model via an array when the end-point scaling option has been invoked via the ENDSCALE keyword in the RUNSPEC section. The critical oil saturation with respect to water is defined as the maximum oil saturation for which the oil relative permeability is zero in a two-phase oil-water relative permeability table. The keyword is used with the Surfactant model to re-scale the surfactant relative permeability saturation tables allocated to a grid block by the by the SURFNUM keyword in the REGIONS section.

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

Notes:

Note this the directional independent version of the critical gas saturation used with the end-point scaling option. If directional end-point scaling has been activated then the SOCRSX± , SOCRSX± and SOCRSX± series of keyword should be used.

If the value for a cell has been defaulted then OPM Flow uses the value from the cell’s relative permeability table.

The keyword is terminated by a “/”.

End-point scaling allows the entered relative permeability functions to be re-scaled based on the saturation end-points allocated to each cell by the SWL, SWCR, SWU, SGL, SGCR, SGU, SOCRS, and SOGCR saturation grid arrays for the saturation end-points, and the KRG, KRORG, KRORW and KRW relative permeability grid cell arrays for the relative permeability end-point data.

Records
An array of values covering the grid

Parameters

No.NameDescriptionFieldMetricLabDefault
1SOCRSSOCRS is an array of real numbers assigning the critical oil saturation with respect to water values to each cell in the model. The number of entries should correspond to the NX x NY x NZ parameters on the DIMENS keyword. Repeat counts may be used, for example 30*0.30dimensionlessdimensionlessdimensionlessTaken from cell allocated relative permeability table.

Example

--
-- DEFINE GRID BLOCK END-POINT SOCRS DATA FOR ALL CELLS
-- (FOR NX x NY x NZ = 300)
--
SOCRS
300*0.200 /
The above example defines a constant critical oil saturation of 0.20 to all 300 cells in the model as defined by the DIMENS keyword in the RUNSPEC section.

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