The ratio of flow rate to pressure drop. Used for oil wells, PI is the barrels of oil produced per day per psi decline in bottomhole flowing pressure.

end_time (O, K, I: ndt_date_tod)

The date and time of day designated as the end of the valid or effective time interval over which the property applies. Inherited from pty_transient_property.


ref_transient_period (O, K, I: ref_transient_period)

The type of period over which the property applies, such as day, month, quarter, cumulative, etc. Inherited from pty_transient_property.


start_time (O, K, I: ndt_date_tod)

The date and time of day that designated the start of the valid or effective time interval over which the property applies. Inherited from pty_transient_property.


well (O, K: well(pty_productivity_index))

Each pty_productivity_index may be a property of one well.


well_completion (O, K: well_completion(pty_productivity_index))

Each pty_productivity_index may be a property of one well_completion.


well_completion_segment (O, K: well_completion_segment(pty_productivity_index))

Each pty_productivity_index may be a property of one well_completion_segment.


pfnu_grid_cell_connection (O, K: pfnu_grid_cell_connection(pty_productivity_index))

Each pty_productivity_index may be a property of one pfnu_grid_cell_connection.


temporary_completion (O, K: temporary_completion(pty_productivity_index))

Each pty_productivity_index may be a property of one temporary_completion.


other_spatial_object (O, K, I: other_spatial_object(property))

Each pty_productivity_index may be a property of one other_spatial_object. Inherited from property.


activity (O, K, I: activity(process_data))

Defines the activity which created this instance. Each pty_productivity_index may be the result of one activity. Inherited from process_data.


wellbore_measurement_point (O, K: wellbore_measurement_point(pty_productivity_index)) (0714)




data_value (M: ndt_productivity_index)

The value of the productivity index.


preferred_flag (O, I: ndt_boolean) (1047)

The flag is set to True if this instance of property is the preferred value in this data store of this type of property for the object which this property describes. Inherited from property.


data_collection (I, V: SET[0:?] data_collection(collection_content))

Indicates the data collections that include this instance of E and P data. Each pty_productivity_index may be a member of one or more data_collection. Inherited from e_and_p_data.


graphical_element (I, V: SET[0:?] graphical_element(depicted_object))

Specifies one or more graphical elements which are depicting this data item. Each pty_productivity_index may be depicted by one or more graphical_element. Inherited from e_and_p_data.


process_data_item (I, V: SET[0:?] process_data_item(process_data))

Defines where this data was used by an activity. Each pty_productivity_index may be the value for one or more process_data_item. Inherited from process_data.

Local rules:

Uniqueness Constraint (0714)
end_time, ref_transient_period, start_time, well, well_completion, well_completion_segment, pfnu_grid_cell_connection, temporary_completion, other_spatial_object, activity, wellbore_measurement_point
[I: property] Mandatory Relationship Set
Each PROPERTY must "be a property of" one object.
[I: pty_transient_property] Instance Value Constraint
If REF_PERIOD_TYPE is EVENT, then both START_TIME and END_TIME must either be blank or be identical.
[I: pty_transient_property] Instance Value Constraint
If REF_TRANSIENT_PERIOD is either YEAR TO DATE, MONTH TO DATE or CUMULATIVE, then END_TIME must be instantiated.
[I: pty_transient_property] Instance Value Constraint
If REF_TRANSIENT_PERIOD is ANNUAL, SEMIANNUAL, QUARTER, MONTHLY, DAILY, or HOURLY, then either both START_TIME and END_TIME are blank or both must be instantiated.
Supertype path(s):
process_data > property > pty_transient_property > pty_productivity_index.
e_and_p_data > property > pty_transient_property > pty_productivity_index.

Entity projects as table P_PROD_IDX.