Open Subsurface Data Universe Ontology

The entity's legal tags and compliance status. The actual contents associated with the legal tags is managed by the Compliance Service.

General method or circumstance of logging - MWD, completion, ...

Alternative Name value of defined name type for an object.

A classification of alias names such as by role played or type of source, such as regulatory name, regulatory code, company code, international standard name, etc.

Name of the authority, or organisation, which governs the entity value and from which it is sourced.

The distinct instance of the attribution publication, by version number, sequence number, date of publication, etc., that was used for the entity value.

The distinct instance of the attribution publication, by version number, sequence number, date of publication, etc., that was used for the entity value.

Array of Authors' names of the work product component. Could be a person or company entity.

UOM_via_property:DepthUnit

The base unit for unit conversion. The symbol of the unit which is used for conversion for of all members of this class. The corresponding baseForConversion must be a member of this class. To convert from one member to another member, you logically convert from the source member to the base and then convert from the base to the target member.

Reference to Basin.

OSDU Native Bottom Measured Depth of the Well Log.

Array of business processes/workflows that the work product component has been through (ex. well planning, exploration).

MD5 checksum of file bytes - a 32 byte hexadecimal number.

The abbreviation or mnemonic for a reference type if defined. Example: WELL and WLBR.

The A parameter; formula: y = (A+Bx)/(C+Dx)

The B parameter; formula: y = (A+Bx)/(C+Dx)

The C parameter; formula: y = (A+Bx)/(C+Dx)

The D parameter; formula: y = (A+Bx)/(C+Dx)

Date that a resource (work product component here) is formed outside of OSDU before loading (e.g. publication date).

The current operator organization ID; the organization ID may also be found in the FacilityOperatorOrganisationID of the FacilityOperator array providing the actual dates.

The ID of the Well Log Curve

The Quality of the Log Curve.

Unit of Measure for the Log Curve

The Version of the Log Curve.

The main source of the header information.

The SRN which identifies this OSDU File resource.

Date curve was created in the database. "format": "date-time"

The default vertical coordinate reference system used in the vertical measurements for a well or wellbore if absent from input vertical measurements and there is no other recourse for obtaining a valid CRS.

The default datum reference point, or zero depth point, used to determine other points vertically in a well. References an entry in the VerticalMeasurements array.

The StandardsOrganisation (reference-data) or Organisation (master-data) that provided the name (the source).

SRN of Wellbore Trajectory which is considered the authoritative or preferred version.

The Coding of the depth.

Unit of Measure for Top and Base depth

The text which describes a NAME TYPE in detail.

Type of mud at time of logging (oil, water based,...)

Identifier of the drilling reason type for the corresponding time period.

The date and time at which a given organisation becomes effective.

The date and time at which the facility specification instance becomes effective.

EncodingFormatType ID reference value relationship. It can me a mime-type or media-type.

"format": "date-time"

Endianness of binary value. Enumeration: \"BIG\", \"LITTLE\". If absent, applications will need to interpret from context indicators.

The reference to the evaluated data record. The record version number is required.

Where does this data resource sit in the cradle-to-grave span of its existence?

The facility event type is a picklist. Examples: 'Permit', 'Spud', 'Abandon', etc.

A system-specified unique identifier of a Facility.

Name of the Facility.

Internal, unique identifier for an item 'AbstractFacilityOperator'. This identifier is used by 'AbstractFacility.CurrentOperatorID' and 'AbstractFacility.InitialOperatorID'.

The company that currently operates, or previously operated the facility

The actual date and time value of the parameter.

The actual indicator value of the parameter.

UOM_via_property:UnitOfMeasureID

The actual text value of the parameter.

The facility life cycle state from planning to abandonment.

The definition of a kind of capability to perform a business function or a service.

Reference to Field.

An optional path to the file collection.

"format": "integer"

The location of the file. It can be a relative path. The actual access is provided via the File Service. This property is required."

The BasinType reference of the Basin (via BasinID) for application convenience.

Description of the hole related type of logging - POSSIBLE VALUE : OpenHole / CasedHole / CementedHole

The object reference identifying the DIRECT, INDIRECT, REFERENCE dependency.

By default reference values are considered as 'active'. An absent 'InactiveIndicator' property value means the reference value is in active use. When 'InactiveIndicator' is set true the reverence value is no longer in use and should no longer be offered as a choice.

An optional path to an index file.

A initial operator organization ID; the organization ID may also be found in the FacilityOperatorOrganisationID of the FacilityOperator array providing the actual dates.

Pre-defined reasons for interest in the well or information about the well.

Indicates if the organisation is internal to the enterprise.

Whether curve can be interpolated or not

The name of person who interpreted this Log Curve.

True if the unit is a base unit for the unit quantity. If the property is absent, it means the unit is not a base unit.

A flag that indicates if the work product component is searchable, which means covered in the search index.

A flag that indicates if the work product component is undergoing an extended load. It reflects the fact that the work product component is in an early stage and may be updated before finalization.

Indicates if the curve has been (pre)processed or if it is a raw recording

This is a pointer to the parent wellbore. The wellbore that starts from top has no parent.

Used by LineageAssertion to describe the nature of the line of descent of a work product component from a prior Resource, such as DIRECT, INDIRECT, REFERENCE. It is not for proximity (number of nodes away), it is not to cover all the relationships in a full ontology or graph, and it is not to describe the type of activity that created the asserting WPC. LineageAssertion does not encompass a full provenance, process history, or activity model.

Log Activity, used to describe the type of pass such as Calibration Pass - Main Pass - Repeated Pass

The SRN of the Log Curve Business Value Type.

The SRN of the Log Curve Family - which is the detailed Geological Physical Quantity Measured - such as neutron porosity

The SRN of the Log Curve Main Family Type - which is the Geological Physical Quantity measured - such as porosity.

The SRN of the Log Curve Business Value Type.

Log Run - describe the run of the log - can be a number, but may be also a alphanumeric description such as a version name

OSDU Native Log Source - will be updated for later releases - not to be used yet

Log Version

Specifies whether curves were collected downward or upward

Logging Service - mainly a short concatenation of the names of the tools

Specifies the symbol of a unit of which is a member of this class. Membership indicates that a value of that class can be converted to any other member unit of that class without loss of semantics. This because the conversion formula represents a unitless factor of one.

The count of total number of additional properties that are not populated.

Total number of additional properties.

Total number of attributes defined in reference value lists.

Total number of attributes with a pattern.

Total number required attributes.

The count of required metadata that are not populated.

Total number of metadata attributes for object in scope.

The count of total number where attribute follows the defined reference value lists.

The count of total number where metadata is not populated.

The count of total number of attributes that follow pattern.

The Mnemonic of the Log Curve is the value as received either from Raw Providers or from Internal Processing team

Optional, user-friendly file name.

Indicates that there is no measurement within the curve

Identifies the Facility's general location as being onshore vs. offshore.

Textual description of the nature of the organisation.

The reason why the organization was formed.