POSC Specifications: Epicentre Version 3.0 | Relational Implementation |
A wellbore geologic target is either a geologic feature or a local rock feature that is defined as a target for a wellbore. Generally, local rock features represent specific regions of the subsurface, such as a drilling target. Geologic features represent more general targets, such as the intended penetrations of a wellbore.
- instance_s (PK, M: CHAR VARYING(19))
- Surrogate key of the table.
- instance_create_date (O: TIMESTAMP)
- e_and_p_data.instance_create_date
This is the date that this instance was created. This date is defined by the source if imported, or is the date the instance is created if a new instance.
- last_updated (O: TIMESTAMP)
- e_and_p_data.last_updated
This is the date that this instance was last updated. This value should be updated when any part of this instance is altered (except for inverse relationships).
- wellbore_s (FSK, M: CHAR VARYING(19))
- wellbore_geologic_target.wellbore
This is the wellbore for which this target is defined.
Defines a foreign key to table wellbore.
- description (O: CHAR VARYING(2000))
- e_and_p_data.description
A remark or comment about the instance.
- duration (O: FLOAT)
duration_u (FNK, O: CHAR VARYING(15))
- transient_association.duration
Defines the duration of the association expressed in any valid units of time.
duration_u: Defines the unit of measure. Defines a foreign key to table r_unit_of_measure.
- end_time (O: TIMESTAMP)
end_time_cd (O: CHAR(1))
end_time_yr (O: FLOAT)
end_time_yp (O: INTEGER)
end_time_dy (O: INTEGER)
end_time_hr (O: INTEGER)
end_time_mt (O: INTEGER)
end_time_st (O: FLOAT)
end_time_of (O: FLOAT)
- transient_association.end_time
End time of the association.
- instance_creator (O: CHAR VARYING(80))
- e_and_p_data.instance_creator
This is the person, company or application that created this instance. This identifies the party responsible for loading this instance.
- is_current (O: CHAR(1))
- transient_association.is_current
When TRUE, this flag indicates that this instance is designated as a current instance. This flag can be used in place of time based attributes or can be used in conjunction with them; however, it should not conflict with them.
- last_updated_by (O: CHAR VARYING(80))
- e_and_p_data.last_updated_by
This records the person or application making the update to this instance.
- source (O: CHAR VARYING(80))
- e_and_p_data.source
The provider of this instance, which is usually a data provider for imported/purchased data. If this instance is provided by POSC, then this attribute must be "POSC".
- start_time (O: TIMESTAMP)
start_time_cd (O: CHAR(1))
start_time_yr (O: FLOAT)
start_time_yp (O: INTEGER)
start_time_dy (O: INTEGER)
start_time_hr (O: INTEGER)
start_time_mt (O: INTEGER)
start_time_st (O: FLOAT)
start_time_of (O: FLOAT)
- transient_association.start_time
Start time of the association.
- caused_by_s (FSK, O: CHAR VARYING(19))
- transient_association.caused_by
Specifies the activity which establishes this association.
Defines a foreign key to table activity.
- geologic_feature_s (FSK, O: CHAR VARYING(19))
- wellbore_geologic_target.geologic_feature
This is the geologic feature for which this wellbore geologic target is defined.
Defines a foreign key to table geologic_feature.
- local_rock_feature_s (FSK, O: CHAR VARYING(19))
- wellbore_geologic_target.local_rock_feature
This is the local rock feature which is defined as a target.
Defines a foreign key to table bulk_material.
- next_target_s (FSK, O: CHAR VARYING(19))
- wellbore_geologic_target.next_target
This is the next target defined in this wellbore, usually deeper. The order is determined from surface to bottomhole.
Defines a foreign key to table wellbore_geologic_target.
- r_transient_period (FNK, O: CHAR VARYING(80))
- transient_association.ref_transient_period
The type of period over which the property applies, such as day, month, quarter, cumulative, etc.
Defines a foreign key to table r_transient_period.
- terminated_by_s (FSK, O: CHAR VARYING(19))
- transient_association.terminated_by
Specifies the activity which established the termination of a transient association between two objects.
Defines a foreign key to table activity.
Table is related to: data_collection_content, document_specification_part, @graphical_element, wellbore_geologic_target
Primary Key Constraint on: INSTANCE_S
Generated on Tue Jul 10 17:12:33 2001
© Copyright 2001 POSC. All rights reserved.