WCONPROD

Recognised by the OPM Flow parserSCHEDULE

The WCONPROD keyword defines production targets and constraints for wells that have previously been defined by the WELSPECS keyword in the SCHEDULE section. Note that wells can be allocated to a group when they are specified by the WELSPECS keyword. 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 using this keyword.

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 GCONPROD and GCONINJE keywords to define a group’s production and injection 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

20

Parameters

Example

The following example defines the production targets and constraints for five wells as follows:
--
-- WELL PRODUCTION WELL CONTROLS
--
-- WELL OPEN/ CNTL OIL WAT GAS LIQ RES BHP THP VFP VFP
-- NAME SHUT MODE RATE RATE RATE RATE RATE PRES PRES TABLE ALFQ
WCONPROD
OP01 OPEN GRUP 5E3 1* 1* 1* 1* 500.0 /
OP02 OPEN GRUP 10E3 1* 1* 1* 1* 200.0 500.0 2 0.0 /
OP03 OPEN GRUP 15E3 1* 1* 1* 1* 200.0 500.0 3 10.0 /
OP04 OPEN ORAT 20E3 1* 1* 1* 1* 500.0 /
OP05 SHUT GRUP 20E3 1* 1* 1* 1* 500.0 /
/
Well OP01 is open and is on group control, subject to a maximum oil rate constraint of 5,000 stb/d and a minimum bottom-hole pressure of 500 psia. OP02 is also open and on group control but it’s maximum oil rate constraint has been set 10,000 stb/d, and is subject to a minimum bottom-hole pressure limit of 200 psia and a minimum tubing head pressure limit of 500 psia using VFPPROD vertical lift table number two. Well OP03 is very similar to OP02, but with a 15,000 stb/d maximum oil constraint and using VFPPROD vertical lift table number three with an artificial lift parameter of 10. The next well is not on group control. Well OP04 is open and has an oil rate target of 20,000 stb/d, subject to a minimum bottom-hole pressure of 500 psia. Finally, well OP05 is shut and will not be brought back on production despite being put under group control, as the well has been declared shut.
The next example defines the production targets and constraints for five wells, of which well OP01 is under group control as the well’s group target and constraints have been set with the GCONPROD keyword, and wells OP02 to OP05 belong to groups that have not had their group constraints set by GCONPROD.
--
-- 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
GRP01 SAT 25E3 1* 1* 1* 1* 1* 1* 1* 1* /
/
--
-- WELL SPECIFICATION DATA
--
-- WELL GROUP LOCATION BHP PHASE DRAIN INFLOW OPEN CROSS PVT
-- NAME NAME I J DEPTH FLUID AREA EQUANS SHUT FLOW TABLE
WELSPECS
OP01 SAT 14 13 1* OIL 1* P-P SHUT NO 1* /
OP02 PLATFORM 64 80 1* OIL 1* GPP SHUT NO 1* /
OP03 PLATFORM 24 110 1* OIL 1* STD SHUT NO 1* /
OP04 PLATFORM 24 110 1* OIL 1* STD SHUT NO 1* /
OP05 PLATFORM 24 110 1* OIL 1* STD SHUT NO 1* /
/
--
-- WELL PRODUCTION WELL CONTROLS
--
-- WELL OPEN/ CNTL OIL WAT GAS LIQ RES BHP THP VFP VFP
-- NAME SHUT MODE RATE RATE RATE RATE RATE PRES PRES TABLE ALFQ
WCONPROD
OP01 OPEN 1* 15E3 1* 1* 1* 1* 500.0 /
OP02 OPEN 1* 1* 5E3* 15E6 1* 1* 200.0 500.0 2 0.0 /
OP03 OPEN 1* 1* 1* 1* 1* 1* 1* 500.0 3 10.0 /
OP04 OPEN '' 1* 1* 1* 1* 1* 1* 1* 1* 1* /
OP05 SHUT 1* 1* 1* 1* 1* 1* 1* 1* 1* 1* /
/
Here, well OP01’s control mode, TARGET, will be set to group control (GRUP) and the well’s production parameters will all act as constraints. For well OP02, the well’s control mode is set to GRAT, and the other production parameters all act as constraints. Well OP03 control mode is set to THP and if the well’s BHP value has been previously defined then that value will be used as a constraint; otherwise the default value of one atmosphere will be used instead. Finally, wells OP04 and OP05 will have their control mode set to BHP control. Note in this case, OP04’s status has been set to OPEN; thus the well will produce at a target BHP of one atmosphere, which is unrealistic.

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