A point in a wellbore that describes an interesting place, such as a surface point or a bottomhole point.

wellbore (M, I: wellbore(create_wellbore_position))

The wellbore in which this wellbore interval was created. Each wellbore_point must located within one wellbore. Inherited from position_in_wellbore.


description (O, I: ndt_comment)

A textual description of the earth model object. Inherited from earth_model_object.


identifier (O, I: ndt_name)

The local label used to identify an earth model object. Inherited from earth_model_object.


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

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


datum_for_ranking (I, V: SET[0:?] object_ranking(base_object))

Indicates that an object is being used as a basis for comparison with another object. Each wellbore_point may datum for ranking one or more object_ranking. Inherited from object_of_interest.


descriptive_text (V: SET[0:?] pty_descriptive_text(wellbore_point)) (0811)

Versionable descriptive text for a wellbore point. This is modeled as a property, and hence versionable, so as to allow different opinions about a wellbore point to be expressed. Each wellbore_point may has a property of one or more pty_descriptive_text.


earth_model (I, V: SET[0:?] earth_model(spatial_object))

Indicates various earth models which include this spatial representation. Each wellbore_point may be part of one or more earth_model. Inherited from spatial_object.


edge (I, V: SET[0:?] edge(vertex))

Defines the edges for which this vertex forms part of the boundary. Each wellbore_point may bind one or more edge. Inherited from vertex.


fluid_system (I, V: SET[0:?] fluid_system(position_in_wellbore))

This describes the fluid system for which this location within the wellbore is described. Each wellbore_point may locate one or more fluid_system. Inherited from position_in_wellbore.


geologic_feature (O, I: geologic_feature(position_in_wellbore))

Specifies a geologic feature intersecting the path of a wellbore. Each wellbore_point may locate one geologic_feature. Inherited from position_in_wellbore.


geoscience_interpretation (O, I: geoscience_interpretation(earth_model_object))

The activity which created this object. Each wellbore_point may result of one geoscience_interpretation. Inherited from earth_model_object.


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

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


intersection_role (I, V: SET[0:?] space_time_operation(intersecting_object))

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. Each wellbore_point may be the intersecting object for one or more space_time_operation. Inherited from topological_object.


local_vertical_datum (I, V: SET[0:?] local_vertical_datum(earth_point))

Indicates the usage of this earth point to establish one or more vertical datum planes Each wellbore_point may intersect one or more local_vertical_datum. Inherited from earth_point.


object_of_ranking (I, V: SET[0:?] object_ranking(ranked_object))

Indicates that an object is being classified in a rank order based on its characteristics. Each wellbore_point may object of ranking one or more object_ranking. Inherited from object_of_interest.


other_composite_spatial_object (I, V: SET[0:?] other_composite_spatial_object(composite_object))

Defines the set of composite spatial objects of which this spatial object is a component. Each wellbore_point may be a component of one or more other_composite_spatial_object. Inherited from spatial_object.


other_material (I, V: SET[0:?] other_material(position_in_wellbore))

Specifies various materials which are found at this position in the wellbore. Each wellbore_point may locate one or more other_material. Inherited from position_in_wellbore.


position_uncertainty_classification (I, V: SET[0:?] position_uncertainty_classification(earth_model_object))

Defines the set of classifications of this position with respect to its degree of uncertainty. Each wellbore_point may be classified by one or more position_uncertainty_classification. Inherited from earth_model_object.


primary_role (I, V: SET[0:?] space_time_operation(primary_object))

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. Each wellbore_point may be the primary object for one or more space_time_operation. Inherited from topological_object.


primary_topological_relationship (I, V: SET[0:?] topological_relationship(primary_topological_object))

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. Each wellbore_point may be primarily involved in one or more topological_relationship. Inherited from topological_object.


pty_location_1d (V: SET[0:?] pty_location_1d(wellbore_point))

Each wellbore_point may have a property of one or more pty_location_1d.


pty_location_2d (V: SET[0:?] pty_location_2d(wellbore_point))

Each wellbore_point may have a property of one or more pty_location_2d.


pty_location_3d (V: SET[0:?] pty_location_3d(wellbore_point))

Each wellbore_point may have a property of one or more pty_location_3d.


pty_magnetic_inclination (I, V: SET[0:?] pty_magnetic_inclination(earth_point))

Each wellbore_point may have a property of one or more pty_magnetic_inclination. Inherited from earth_point.


ref_wellbore_point (O: ref_wellbore_point)

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


rock_feature_part (O, I: rock_feature_part(earth_model_object)) (1226)

This points to the rock feature part that this earth model object is representing spatially. Each wellbore_point may be located by one rock_feature_part. Inherited from earth_model_object.


secondary_topological_relationship (I, V: SET[0:?] topological_relationship(secondary_topological_object))

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. Each wellbore_point may be involved in one or more topological_relationship. Inherited from topological_object.


source_space_time_operation (I, V: BAG[0:1] space_time_operation(resulting_object))

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. Each wellbore_point may be the result of one space_time_operation. Inherited from topological_object.


vertical_datum_offset (I, V: SET[0:?] vertical_datum_offset(earth_point))

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. Each wellbore_point may be used to define one or more vertical_datum_offset. Inherited from earth_point.


wellbore_activity (I, V: SET[0:?] wellbore_activity(position_in_wellbore))

Indicates various activities which take place at this location along a wellbore path. Each wellbore_point may locate one or more wellbore_activity. Inherited from position_in_wellbore.


wellbore_component_facility (O, I: wellbore_component_facility(position_in_wellbore))

Indicates a facility which is located by this wellbore position. Each wellbore_point may locate one wellbore_component_facility. Inherited from position_in_wellbore.


wellbore_composite_position (O, I: SET[0:?] wellbore_composite_position(position_in_wellbore))

Indicates that this location is part of the specification of a composite position. Each wellbore_point may be a part of one or more wellbore_composite_position. Inherited from position_in_wellbore.


well_completion (O, I: well_completion(position_in_wellbore))

Indicates the well completion which is found at this position. Each wellbore_point may locate one well_completion. Inherited from position_in_wellbore.


well_log_trace (I, V: SET[0:?] well_log_trace(position_in_wellbore))

Indicates various well log traces which evaluate this portion of the well path. Each wellbore_point may locate one or more well_log_trace. Inherited from position_in_wellbore.

Local rules:

Abstract supertype:
Each WELLBORE_POINT must be instantiated as one of its subtypes. These subtypes are: general_wellbore_point, wellbore_aligned_point
Supertype path(s):
topological_object > spatial_object > simple_spatial_object > vertex > earth_point > wellbore_point.
e_and_p_data > object_of_interest > technical_object > earth_model_object > position_in_wellbore > wellbore_point.

Entity replicated into subtype tables (@wellbore_point).

Referenced in Diagrams:

• EMG4: Earth Model Objects (0712, 1226)
• WI2: Wellbore Position (1051, 1124, 1137, 1226)