OPM Flow Keyword Reference

SAVE

Recognised by the OPM Flow parserRUNSPECSCHEDULE

Variant 1 — RUNSPEC section

This keyword activates output of a SAVE file for fast restarts which are read in by the LOAD keyword in the RUNSPEC section. No data is required for this keyword.

OPM Flow does not support the SAVE file format for fast restarts like the commercial simulator, but instead writes a standard RESTART file at the requested time step in the SCHEDULE section, which can then be used to restart the simulation at a given point in time via the RESTART keyword in the RUNSPEC section.

Records
Fixed number of records
Record count
1
Items per record
1

Parameters

No.NameDescriptionTypeDefault
1FILE_TYPESTRINGUNFORMATTED

Example

The first example requests that a SAVE file be written out in the RUNSPEC section; however, OPM Flow will not write a RESTART record if the SAVE keyword is encountered in the RUNSPEC section.
-- ==============================================================================
--
-- RUNSPEC SECTION
--
-- ==============================================================================
RUNSPEC
--
-- WRITE OUT SAVE FILE FOR FAST RESTARTS
--
SAVE
The second example shows how the keyword is used in the SCHEDULE section.
-- ==============================================================================
--
-- SCHEDULE SECTION
--
-- ==============================================================================
SCHEDULE
-- ------------------------------------------------------------------------------
-- SCHEDULE SECTION - 2020-01-01
-- ------------------------------------------------------------------------------
RPTSCHED
'WELLS=2' 'WELSPECS' 'CPU=2' FIP=2' /
DATES
1 APR 2021 /
/
--
-- WRITE OUT SAVE FILE FOR FAST RESTARTS
--
SAVE
DATES
1 JLY 2021 /
1 OCT 2021 /
/
Here OPM Flow will write out a RESTART file instead of a SAVE file at April 1st, 2021.

Manual source: parts/chapters/subsections/5.3/SAVE.fodt

Variant 2 — SCHEDULE section

This keyword activates output of a SAVE file for fast restarts. There is no data required for this keyword.

See SAVE – Activate Output of a SAVE File for Fast Restartsin the RUNSPEC section for a full description.

This keyword is not supported by OPM Flow but has no effect on the results so it will be ignored.

Records
Fixed number of records
Record count
1
Items per record
1

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