GCONPROD

Recognised by the OPM Flow parserSCHEDULE

The GCONPROD keyword defines production targets and constraints for groups, including the top most group in the group hierarchy known as the FIELD group. Wells are allocated to groups when the wells are specified by the WELSPECS keyword in the SCHEDULE section. Wells defined to be under group control will have their production rates controlled by the group to which they belong, in addition to any well constraints defined for the wells.

Notes:

User Defined Quantities ("UDQ") can be used as User Defined Arguments ("UDA") for various group, well, and connection keywords in the SCHEDULE section. User Defined Arguments are activated using the UDADIMS keyword in the RUNSPEC section, and defined by the UDQ keyword in the SCHEDULE section.

The keyword is followed by any number of records with each record terminated by a “/” and the keyword should be terminated by a “/”.

See also the GRUPTREE keyword to define the hierarchy of the groups below the FIELD level, the GCONINJE keyword to define a group’s injection targets and constraints, the WCONPROD keyword to define a production well’s targets and constraints, and the WCONINJE keyword to define an injection well’s targets and constraints. All the aforementioned keywords are described in the SCHEDULE section.

Records

One or more records, each terminated by /

Items per record

21

Parameters

Example

The following example defines the production targets and constraints for the field and two groups that are one level below the field group, since the GRUPTREE keyword has not been entered to define the group hierarchy.
--
-- GROUP PRODUCTION CONTROLS
--
-- GRUP CNTL OIL WAT GAS LIQ CNTL GRUP GUIDE GUIDE CNTL
-- NAME MODE RATE RATE RATE RATE OPT CNTL RATE DEF WAT
GCONPROD
FIELD ORAT 40E3 60E3 300E3 60E3 1* 1* 1* 1* 1* /
GRP01 FLD 25E3 1* 1* 1* 1* 1* 1* 1* 1* /
GRP02 FLD 25E3 1* 1* 1* 1* 1* 1* 1* 1* /
/
All groups are controlled by oil rate targets or constraints, but only the field level has water, gas and liquid constraints to reflect the actual production facility constraints. The wells under group control will produce based on the oil potential of each of the wells under group control, such that the field oil production target of 40,000 stb/d is honored and subject to the other constraints. In addition, GRP01 and GRP02 oil rate values of 25,000 stb/d are constraints as these two groups are subject to the FIELD level targets and constraints.

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