The Well Groups view

The Well Group tab allows you to define the group or groups of wells for a simulation. Groups can be put into subgroups and are connected with the parent.

Active  When checked indicates that well is active. An inactive well is not written to the deck.

Name  Name of the Well Group.

Parent  Selects the parent using a combo box.

Definition Date  Assigns a time step to the well group.

The Group Configuration tab allows you to define various settings for each well group. The Group Configuration tab includes sorting functionality, similar to the sort functionality found in the Manual Data Select Tab for Production Data views. If you wish to sort the groups in the view you can drag one of the column headers to the green area above the table to sort by that header. For example, you could drag the Time column header to sort all groups by their start time.

Group  Specify the group for the configuration.

Date/Time  Enter the date and time for the group.

MANIFOLD  Enable the manifold for the stream.

PCONMANIFOLD  Indicates that the group surface pressure constraint will be translated to a tubing-head pressure constraint.

ONTIME  The fraction of the time the group is on-line.

APPOR-METHOD  Specify the apportionment method.

GFUELMAXR  Enter the maximum fuel consumption rate.

GMKMAXR  Specify the maximum surface make-up rate.

GPHYDDEP  Specify the manifold depth for calculation pressure drop.

GPTABLE  Enter the tubing table number between the manifold and the surface.

WMKUPTO  Specify the water make-up target for the group.

WPRODGROUP  Specify the group from which the water and total production rates will be taken for water recycling/voidage replacement calculation.

WRECYMAXR  Enter the maximum make-up water rate.

The Group Constraint tab allows you to define the constraints a well group will have. The production, injection and monitoring constraint (GCONP, GCONI, and GCONM respectively) types are defined in the Constraint column as well as GUIDEI and GUIDEP. Qualifiers, Types, and values are then filled depending on the options chosen.

Group  Specify the group for which you want to define the constraints.

Date/Time  Enter the date and time for the group.

Constraint  For group constraints, GCONP, GCONI, and GCONM are available in this column. To specify guide rates, GUIDEP and GUIDEI can be selected. GAPPOR is available if you wish to apportion a group’s rate target. See the list of constraints below for more information.

Mat/Frac  Only active if one of GCONP, GCONI, or GAPPOR is specified as the constraint. For each of these three constraints, a different set of options will be available in this column.

Type  Specify the type (subkeyword) for the constraint. The set of options in this column is dependent upon the Constraint and Qualifier combination. See the following table for a description of each keyword found in this column.

Value  Specify the value for the constraint.

Action  Select the action for the constraint. The list of options in this column is dependent upon the selection in the Constraint and Qualifier columns.

STOP  Indicates that the simulation should be stopped if the constraint is violated.

CONT  Indicates that the simulation should continue, even if the constraint is violated.

SHUTMOW  Indicates that the most offending layer in the most offending well should be shut if the GOR, WCUT, WGR, MAXGAS, or MAXSTW monitor is violated.

SHUTMOL  Indicates that the most offending well should be shut if the GOR, WCUT, WGR, MAXGAS, or MAXSTW monitor is violated.

SHUTMOLDOWN  Indicates that the most offending layer and all of the layers below it in the most offending well should be shut if the GOR, WCUT, WGR, MAXGAS, or MAXSTW monitor is violated.

SHUTMOLUP  Indicates that the most offending layer and all of the layers above it in the most offending well should be shut if the GOR, WCUT, WGR, MAXGAS, or MAXSTW monitor is violated.

SHUTMOWS  Indicates that a list of prioritized most offending wells (based on the wells with the great GOR, WCUT, or WGR) should be shut if the GOR, WCUT, WGR, MAXGAS, or MAXSTW monitor is violated.

SHUTALL  Indicates that all currently open wells in the group will shut if the monitored constraint is violated.

Order  Enter a value here for the order in which the constraint should be evaluated.

BHF  Specify the bottom hole fluid rate.

BHG  Specify the reservoir gas rate.

BHW  Specify the reservoir water rate.

CPP  Specify a compressor pressure. Note that this constraint may only be applied if the group production is set as going through a manifold.

GAS  Used to indicate the phase for the connected production wells when either the *PMAINT or *RECYCLE qualifier is selected.

GCP  Specify the gas compressor pressure for injection. Note that the group must be defined as gas injection passing through a manifold.

GMKUP  Used to indicate that the gas phase is the make-up stream supplemented to meet the total voidage replacement fraction.

GMP  Specify the gas manifold pressure for injection. Note that the group must be defined as gas injection passing through a manifold.

MNP  Specify the manifold pressure. Note that this constraint may only be applied if the group production is set as going through a manifold.

OFF  Disables the AUTODRILL option, preventing any shut wells from opening for the purpose of supplementing the injection/production group in meeting its target.

ON  Indicates that any shut well that may potentially contribute to the injection or production target may be opened if the apportionment routine finds that the contributing wells will fail to meet the target.

SCP  Specify the solvent compressor pressure for injection. Note that the group must be defined as gas injection passing through a manifold.

SMKUP  Used to indicate that the solvent phase is the make-up stream supplemented to meet the total voidage replacement fraction.

SMP  Specify the solvent manifold pressure for injection. Note that the group must be defined as gas injection passing through a manifold.

SOLVENT  Used to indicate the phase for the connected production wells when either the *PMAINT or *RECYCLE qualifier is selected.

STG  Specify the surface gas rate.

STL  Specify the total surface liquid rate (oil plus water).

STO  Specify the surface oil rate.

STS  Specify the surface solvent rate.

STW  Specify the surface water rate.

WATER  Used to indicate the phase for the connected production wells when either the *PMAINT or *RECYCLE qualifier is selected.

WCP  Specify the water compressor pressure for injection. Note that the group must be defined as gas injection passing through a manifold.

WMKUP  Used to indicate that the water phase is the make-up stream supplemented to meet the total voidage replacement fraction.

WMP  Specify the water manifold pressure for injection. Note that the group must be defined as gas injection passing through a manifold.