SALTP

Recognised by the OPM Flow parserSOLUTION

The SALTP keyword defines the initial equilibration precipitated salt volume fraction values for all grid cells in the model and should be used in conjunction with the PBUB, PDEW, PRESSURE, RS, RV, SGAS, SOIL and SWAT keywords etc., to fully describe the initial state of the model. The keyword should only be used if the salt (brine) phase has been activated in the model via the BRINE keyword, and the PRECSALT keyword to activate OPM Flow’s Salt Precipitation Model. Both keywords are in the RUNSPEC section.

This is the non-standard method to initialize the model via enumeration and is seldom employed in the industry. The standard methodology is for OPM Flow to initialize a model using the parameters on the EQUIL keyword combined with other keywords to fully describe the initial state of the model. The keyword can be used with all grid types.

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.

The keyword is terminated by a “/”.

See also the PBUB, PDEW, PRESSURE, RS, RV, SGAS, SOIL and SWAT keywords to fully define the initial state of the model.

Note

This is an OPM Flow specific keyword for the simulator’s Salt Precipitation Model that is activated by the PRECSALT keyword and declaring that vaporized water is present in the run via the VAPWAT in the RUNSPEC section.

This keyword defines the initial precipitated salt volume fraction contained within the pore space. See SALT in the SOLUTION section that defines the initial salt concentration within the water phase.

Records

Fixed number of records

Record count

1

Variadic

The record accepts a variable number of items

Parameters

Example

The example activates the standard Brine Tracking model using the BRINE keyword, OPM Flow’s Salt Precipitation model using the PRECSALT keyword, and OPM Flow’s vaporized water phase with the VAPWAT keyword; all three keywords are in the RUNSPEC section.
-- ==============================================================================
--
-- RUNSPEC SECTION
--
-- ==============================================================================
RUNSPEC
--
-- MAX MAX RSVD TVDP TVDP
-- EQLNUM DEPTH NODES TABLE NODES
EQLDIMS
3 1* 20 1* 1* /
--
-- ACTIVATE STANDARD BRINE MODEL
--
BRINE
--
-- ACTIVATE THE OPM FLOW SALT PRECIPITATION MODEL (OPM FLOW KEYWORD)
--
PRECSALT
--
-- VAPORIZED WATER IN WET GAS IS PRESENT IN THE RUN (OPM FLOW KEYWORD)
--
VAPWAT
Then in the SOLUTION section the SALTP keyword would be of the form:
-- ==============================================================================
--
-- SOLUTION SECTION
--
-- ==============================================================================
SOLUTION
--
-- DEFINE INITIAL PRECIPITATED SALT VOLUME FRACTION FOR ALL CELLS
-- BASED ON NX = 100, NY = 100 AND NZ = 3
--
SALTP
1000*0.0000 1000*0.0000 1000*0.100 /
Here the initial equilibration precipitated salt volume fraction values are set to 0.0000 for all the cells in the first and second layers and finally 0.1000 for all the cells in the third layer.
| Note This is an OPM Flow specific keyword for the simulator’s Salt Precipitation Model that is activated by the PRECSALT keyword and declaring that vaporized water is present in the run via the VAPWAT in the RUNSPEC section. This keyword defines the initial precipitated salt volume fraction contained within the pore space. See SALT in the SOLUTION section that defines the initial salt concentration within the water phase. |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

Manual source: parts/chapters/subsections/10.3/SALTP.fodt