Entity well_surface_feature_role

• This describes the different relationships between earth surface features and wells over time. These may define that a well is within a country or a city, a well is inside an offshore concession.

Attribute                                 Flags   Data Type

From transient_association:
   data_collection                        IV      set[0 .. N] of (data_collection)

                                          Indicates the data collections that include this
                                          instance of E and P data. 

   graphical_element                      IV      set[0 .. N] of (graphical_element)

                                          Specifies one or more graphical elements which
                                          are depicting this data item. 

   description                            I       ndt_comment

                                          A description of the transient association. 

   duration                               IN      ndt_time

                                          Defines the duration of the association expressed
                                          in any valid units of time. 

   end_time                               IN      ndt_date_tod

                                          End time of the association. 

   start_time                             IN      ndt_date_tod

                                          Start time of the association. 

   caused_by                              I       activity

                                          Specifies the activity which establishes this
                                          association. 

   terminated_by                          I       activity

                                          Specifies the activity which established the
                                          termination of a transient association between
                                          two objects. 


ref_well_surface_feature_role             MU      ref_well_surface_feature_role

                                          The kind or type of the role of the well within
                                          a land feature. 

well                                      MU      well

                                          Specifies the well involved in the spatial
                                          relationship. 

earth_surface_feature                     MU      earth_surface_feature

                                          This is the earth surface feature for which this
                                          well role is defined. 

End of entity well_surface_feature_role

M - mandatory, U - unique, I - inherited, V - inverse, N - named type