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exported equivalent COPI_0000365
Tubing Head
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000365
Generated onGerado em 2026-04-15
Natural Language DefinitionDefinição em Linguagem Natural
EN
A tubing head is a wellhead component that supports the tubing hanger and provides a connection interface for attaching the Christmas tree to the wellhead assembly.
PT-BR
Uma cabeça de coluna é um componente de cabeça de poço que suporta o suspensor de coluna e fornece uma interface de conexão para fixar a árvore de natal ao conjunto de cabeça de poço.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every tubing head is a wellhead component that bears a tubing support and connection function, has a tubing bowl as component part, and has a Christmas tree connection interface as component part.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (TubingHead(x) ↔ Assembly(x) ∧ ∃f (TubingSupportAndConnectionFunction(f) ∧ bearerOf(x,f)) ∧ ∃bearerOf.TubingSupportAndConnectionFunction ⊓ ∃hasPart.TubingBowl ⊓ ∃hasPart.ChristmasTreeConnectionInterface) — Steps 1–3: genus + identity-giving function [Function axiom: TubingSupportAndConnectionFunction]∀f (TubingSupportAndConnectionFunction(f) → ∀p (realizedIn(f,p) → TubingSupportAndConnectionProcess(p)) ∧ ∃p (TubingSupportAndConnectionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Necessary part: TubingBowl]∀x (TubingHead(x) → ∃p (TubingBowl(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((TubingHead(x) ∧ TubingSupportAndConnectionFunction(f) ∧ bearerOf(x,f)) → ∃m (TubingHanger(m) ∧ participatesIn(m,f)) ∧ ∃e1 (SupportedTubingString(e1) ∧ participatesIn(e1,f)) ∧ ∃e2 (ChristmasTreeConnectionPoint(e2) ∧ participatesIn(e2,f)) ∧ processType(f,MechanicalPowerTransmission)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: TubingHead <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0-104-g4d16eff" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-07-13"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :TubingSupportAndConnectionFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :TubingSupportAndConnectionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :TubingSupportAndConnectionProcess ] ; rdfs:label "tubing support and connection function"@en ; rdfs:label "função de suporte e conexão de coluna de produção"@pt-br . ### Process type :TubingSupportAndConnectionProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "tubing support and connection process"@en ; rdfs:label "processo de suporte e conexão de coluna de produção"@pt-br . :TubingSupportAndConnectionProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :TubingHanger ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :SupportedTubingString ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :ChristmasTreeConnectionPoint ] . ### Equipment universal: TubingHead :TubingHead rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( iof-core:Assembly [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :TubingSupportAndConnectionFunction ] [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :TubingBowl ] ) ] ; rdfs:label "tubing head"@en ; rdfs:label "cabeça de coluna"@pt-br ; iof-av:naturalLanguageDefinition "A tubing head is a wellhead component that supports the tubing hanger and provides a connection interface for attaching the Christmas tree to the wellhead assembly."@en ; skos:definition "A tubing head is a wellhead component that supports the tubing hanger and provides a connection interface for attaching the Christmas tree to the wellhead assembly."@en ; iof-av:naturalLanguageDefinition "Uma cabeça de coluna é um componente de cabeça de poço que suporta o suspensor de coluna e fornece uma interface de conexão para fixar a árvore de natal ao conjunto de cabeça de poço."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every tubing head is a wellhead component that bears a tubing support and connection function, has a tubing bowl as component part, and has a Christmas tree connection interface as component part."@en ; iof-av:firstOrderLogicAxiom "∀x(TubingHead(x) ↔ WellheadComponent(x) ∧ ∃f(TubingSupportAndConnectionFunction(f) ∧ bearerOf(x,f)) ∧ ∃p1(TubingBowl(p1) ∧ hasComponentPartAtAllTimes(x,p1)) ∧ ∃p2(ChristmasTreeConnectionInterface(p2) ∧ hasComponentPartAtAllTimes(x,p2)))"@en ; :TubingBowl rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "tigela de coluna de produção"@pt-br ; rdfs:label "tubing bowl"@en .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
TubingSupportAndConnectionFunction ⊑ DesignedFunction
Realized in
TubingSupportAndConnectionProcess ⊑ PlannedProcess
The identity-giving function is to support the tubing hanger and provide mechanical interface for attaching the Christmas tree to the wellhead assembly, enabling controlled access to the tubing string.
2 Genus DeterminationDeterminação do Gênero
Assemblybfo:Object (BFO_0000030)
All definitions consistently identify tubing head as a wellhead component. While WellheadComponent is not yet enriched in our ontology, it is the most specific appropriate superclass. The tubing head is an assembly with multiple connected parts (flanged spool, tubing bowl, connection interfaces) that functions as a single maintainable unit.
3 Differentia SpecificaDiferença Específica
∃bearerOf.TubingSupportAndConnectionFunction ⊓ ∃hasPart.TubingBowl ⊓ ∃hasPart.ChristmasTreeConnectionInterface

A wellhead component that specifically supports the tubing hanger in its tubing bowl and provides the connection interface for the Christmas tree.

The tubing bowl for hanger support and Christmas tree connection interface are the minimal structural requirements that distinguish tubing head from other wellhead components like casing heads or the Christmas tree itself.
4 Necessary PartsPartes Necessárias
Part classParentRelation
TubingBowlMaterialArtifacthasComponentPartAtAllTimes
These parts are structurally necessary for any tubing head to perform its dual function of tubing support and Christmas tree connection.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'TubingHanger', 'count': 1, 'constraints': 'mechanical load bearing'}
OutputsSaídas
{'type': 'SupportedTubingString', 'count': 1, 'constraints': 'suspended and sealed'}, {'type': 'ChristmasTreeConnectionPoint', 'count': 1, 'constraints': 'mechanically coupled'}
TransformationTransformação
mechanical load transfer and interface coupling
The tubing head receives a tubing hanger and provides both tubing string support and Christmas tree connection capability through mechanical load transfer and interface coupling.
MetadataMetadados
COPI IDCOPI IDCOPI_0000365
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000365
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-15
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroAssembly
Root classClasse raizAssembly
Axiom modeModoequivalent
FunctionFunçãoTubingSupportAndConnectionFunction
ProcessProcessoTubingSupportAndConnectionProcess
PartsPartes1
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 TUBING HEAD
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
SLB Glossary tubing head
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
ONEPETRO_GLOSSARY Tubing head
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.