Core Ontology for Petroleum Installations · INF-UFRGS-Ontologies · CNPq INF-UFRGS-ENERGIA inf.ufrgs.br/ontologies/copi dee69df
proposed equivalent
lubricator
IRI: http://www.inf.ufrgs.br/ontologies/copi#Lubricator
Generated on 2026-06-25
Natural Language Definition
EN
A lubricator is a pressurised cylindrical vessel assembly installed above the wellhead or blowout preventer that allows downhole tools to be introduced into and retrieved from a live pressurised well without releasing well pressure.
PT-BR
Um lubrificador de cabeça de poço é um conjunto de vaso cilíndrico pressurizado instalado acima do cabeçote de poço ou preventor de erupção que permite a introdução e retirada de ferramentas de fundo de poço em um poço pressurizado vivo sem liberação da pressão do poço.
Formal Axioms
First-Order Logic Theory
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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: Lubricator <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" ; 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 "2026-10-07"^^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 :LiveWellToolDeploymentFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :LiveWellToolDeploymentProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :LiveWellToolDeploymentProcess ] ; rdfs:label "live well tool deployment function"@en ; rdfs:label "função de introdução de ferramentas em poço vivo"@pt-br . ### Process type :LiveWellToolDeploymentProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "live well tool deployment process"@en ; rdfs:label "processo de introdução de ferramentas em poço vivo"@pt-br . :LiveWellToolDeploymentProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :DownholeToolString ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :WellborePressure ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :DownholeToolString ] . ### Equipment universal: Lubricator :Lubricator rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :COPI_0000158 # Vessel [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :LiveWellToolDeploymentFunction ] ) ] ; rdfs:label "lubricator"@en ; rdfs:label "lubrificador de cabeça de poço"@pt-br ; iof-av:naturalLanguageDefinition "A lubricator is a pressurised cylindrical vessel assembly installed above the wellhead or blowout preventer that allows downhole tools to be introduced into and retrieved from a live pressurised well without releasing well pressure."@en ; skos:definition "A lubricator is a pressurised cylindrical vessel assembly installed above the wellhead or blowout preventer that allows downhole tools to be introduced into and retrieved from a live pressurised well without releasing well pressure."@en ; iof-av:naturalLanguageDefinition "Um lubrificador de cabeça de poço é um conjunto de vaso cilíndrico pressurizado instalado acima do cabeçote de poço ou preventor de erupção que permite a introdução e retirada de ferramentas de fundo de poço em um poço pressurizado vivo sem liberação da pressão do poço."@pt-br ; skos:definition "[ISO 15926-4] A <LUBRICATOR> is a <FunctionalObject> that has the capability of <LUBRICATING>"@en ; skos:definition "[SLB Glossary] A long, high-pressure pipe fitted to the top of a wellhead or Christmas tree so that tools may be put into a high-pressure well."@en ; skos:definition "[OnePetro] A pressurized shell, mounted above the BOP or master valve, which houses the tool string when entering a live well."@en .
Axiomatization Decision Log
1 Identity-Giving Function
Function class
LiveWellToolDeploymentFunction ⊑ DesignedFunction
Realized in
LiveWellToolDeploymentProcess ⊑ PlannedProcess
2 Genus Determination
Vessel
3 Necessary Parts
Part class Parent Relation
PressureContainmentBody Vessel hasComponentPartAtAllTimes
WellheadConnection MaterialArtifact hasComponentPartAtAllTimes
StuffingBox MaterialArtifact hasComponentPartAtAllTimes
4 Process Participation Signature ⟨I, O, T⟩
Inputs (I)
DownholeToolString — tool string to be introduced into pressurised wellbore
WellborePressure — live well at operating pressure
Outputs (O)
DownholeToolString — tool string deployed inside wellbore below pressure-sealing valves
Transformation (T)
pressure-equalisation and controlled introduction of downhole tools into a live well without venting well pressure
The lubricator provides a pressurised chamber above the wellhead that allows the tool string to be inserted under full well pressure; the stuffing box seals around the wire or tubing and the lower valve separates the lubricator from the wellbore during rigging up.
5 Axiom Mode Decision

Necessary + Sufficient — modelled as a defined class (≡, EquivalentClass). Automatic classification is appropriate for this concept.

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