Entity general_wellbore_point


Attribute                                 Flags   Data Type

From wellbore_point:
   secondary_topological_relationship     IV      set[0 .. N] of (topological_relationship)

                                          Indicates a topological relationship in which
                                          the object is in the role of secondary agent.
                                          For an object intersection type of "inside" this
                                          is the contained role (e.g., if a well is inside
                                          a field then the well would be the secondary agent).
                                          For all other object intersection types the roles
                                          are symmetrical and both relationships must be
                                          searched for a particular object. For example,
                                          if a wellbore and a formation overlap then either
                                          could be chosen as the secondary agent with the
                                          other chosen as the primary agent. 

   primary_topological_relationship       IV      set[0 .. N] of (topological_relationship)

                                          Indicates a topological relationship in which
                                          the topologic object has the role of primary agent.
                                          For an object intersection type of "inside" this
                                          is the containing role (e.g., if a city is inside
                                          a county then the county would be the primary
                                          agent). For all other object intersection types
                                          the roles are symmetrical and both relationships
                                          must be searched for a particular object. For
                                          example, if a wellbore and a formation overlap
                                          then either could be chosen as the primary agent
                                          with the other chosen as the secondary agent.

   intersection_role                      IV      set[0 .. N] of (space_time_operation)

                                          Indicates a space/time operation for which the
                                          object is involved as an intersecting agent. For
                                          projection, this is the screen on which an object
                                          is being projected. For proximity, this is the
                                          magnet object. 

   primary_role                           IV      set[0 .. N] of (space_time_operation)

                                          Indicates a space/time operation for which the
                                          object is involved as a primary agent. For
                                          degeneration, this object is being degenerated.
                                          For projection, this object is being projected
                                          onto another object. For proximity, this is the
                                          container object. 

   source_space_time_operation            IV      bag[0 .. 1] of (space_time_operation)

                                          Indicates the space/time operation from which
                                          a topological object was the result. For addition,
                                          this is the union of two objects. For degeneration,
                                          this is the degenerate object. 

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

                                          Defines the set of composite spatial objects of
                                          which this spatial object is a component. 

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

                                          Indicates various earth models which include this
                                          spatial representation. 

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

                                          Defines the edges for which this vertex forms
                                          part of the boundary. 

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

                                          These are the offsets between vertical datums
                                          that are defined as passing through this point.
                                          This earth point is being used to locate the offset.

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

                                          may have a property of 

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

                                          Indicates the usage of this earth point to establish
                                          one or more vertical datum planes 

   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. 

   datum_for_ranking                      IV      set[0 .. N] of (object_ranking)

                                          Indicates that an object is being used as a basis
                                          for comparison with another object. 

   object_of_ranking                      IV      set[0 .. N] of (object_ranking)

                                          Indicates that an object is being classified in
                                          a rank order based on its characteristics. 

   description                            I       ndt_comment

                                          A textual description of the earth model object.

   identifier                             I       ndt_name

                                          The local label used to identify an earth model
                                          object. 

   geoscience_interpretation              I       geoscience_interpretation

                                          The activity which created this object. 

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

                                          Defines the set of classifications of this position
                                          with respect to its degree of uncertainty. 

   wellbore_composite_position            I       set[0 .. N] of (wellbore_composite_position)

                                          Indicates that this location is part of the
                                          specification of a composite position. 

   wellbore_component_facility            I       wellbore_component_facility

                                          Indicates a facility which is located by this
                                          wellbore position. 

   well_completion                        I       well_completion

                                          Indicates the well completion which is found at
                                          this position. 

   geologic_feature                       I       geologic_feature

                                          Specifies a geologic feature intersecting the
                                          path of a wellbore. 

   wellbore                               MI      wellbore

                                          The wellbore in which this wellbore interval was
                                          created. 

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

                                          This describes the fluid system for which this
                                          location within the wellbore is described. 

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

                                          Indicates various well log traces which evaluate
                                          this portion of the well path. 

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

                                          Indicates the source location for drill cuttings.

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

                                          Indicates various rock layers which intersect
                                          the wellbore at this position. 

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

                                          Indicates various activities which take place
                                          at this location along a wellbore path. 

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

                                          Specifies the cores which have come from this
                                          location within a wellbore. 

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

                                          Specifies various materials which are found at
                                          this position in the wellbore. 

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

                                          Specifies the materials which were originally
                                          located at this position. 

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

                                          Indicates various paleontology samples which were
                                          sampled from this wellbore position. 

   ref_wellbore_point                     I       ref_wellbore_point

                                          A meaningful classification based on industry
                                          terminology. Examples are spud point, kickoff
                                          point, side track point, casing shoe, core point
                                          etc. 

   pty_location_1d                        IV      set[0 .. N] of (pty_location_1d)

                                          may have a property of 

   pty_location_2d                        IV      set[0 .. N] of (pty_location_2d)

                                          may have a property of 

   pty_location_3d                        IV      set[0 .. N] of (pty_location_3d)

                                          may have a property of 


End of entity general_wellbore_point


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


EPICENTRE schema version 2.1

INDEX august POSC Mobil ABOUT
The Epicentre schema is copyright © 1994, 1995, 1996 by POSC, Houston, Texas, USA