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exported necessary COPI_0000222
Casing
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000222
Generated onGerado em 2026-04-15
Natural Language DefinitionDefinição em Linguagem Natural
EN
A casing is an assembly that provides structural enclosure with pressure containment capability, characterized by walls that separate internal components or fluids from the external environment.
PT-BR
Um casing é um conjunto que fornece invólucro estrutural com capacidade de contenção de pressão, caracterizado por paredes que separam componentes internos ou fluidos do ambiente externo.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every casing is an assembly that has an enclosure function and has component part some casing wall and has function some pressure containment function.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (Casing(x) → Assembly(x) ∧ ∃f (EnclosureFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: EnclosureFunction]∀f (EnclosureFunction(f) → ∀p (realizedIn(f,p) → EnclosureProcess(p)) ∧ ∃p (EnclosureProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (Casing(x) → ∃bearerOf.EnclosureFunction ⊓ ∃hasPart.CasingWall) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Process participation signature]∀x ∀f ((Casing(x) ∧ EnclosureFunction(f) ∧ bearerOf(x,f)) → ∃m1 (FluidPortion(m1) ∧ participatesIn(m1,f)) ∧ ∃m2 (MaterialComponent(m2) ∧ participatesIn(m2,f)) ∧ ∃e (MaterialComponent(e) ∧ participatesIn(e,f)) ∧ processType(f,Containment)) — 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: Casing <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 :EnclosureFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :EnclosureProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :EnclosureProcess ] ; rdfs:label "enclosure function"@en ; rdfs:label "função de proteção e invólucro"@pt-br . ### Process type :EnclosureProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "enclosure process"@en ; rdfs:label "processo de proteção e invólucro"@pt-br . :EnclosureProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :MaterialComponent ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :MaterialComponent ] . ### Equipment universal: Casing :Casing rdf:type owl:Class ; rdfs:subClassOf iof-core:Assembly ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :EnclosureFunction ] ; rdfs:label "casing"@en ; rdfs:label "casing"@pt-br ; iof-av:naturalLanguageDefinition "A casing is an assembly that provides structural enclosure with pressure containment capability, characterized by walls that separate internal components or fluids from the external environment."@en ; skos:definition "A casing is an assembly that provides structural enclosure with pressure containment capability, characterized by walls that separate internal components or fluids from the external environment."@en ; iof-av:naturalLanguageDefinition "Um casing é um conjunto que fornece invólucro estrutural com capacidade de contenção de pressão, caracterizado por paredes que separam componentes internos ou fluidos do ambiente externo."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every casing is an assembly that has an enclosure function and has component part some casing wall and has function some pressure containment function."@en ; iof-av:firstOrderLogicAxiom "∀x(Casing(x) → Assembly(x) ∧ ∃f(EnclosureFunction(f) ∧ bearerOf(x,f)) ∧ ∃w(CasingWall(w) ∧ hasComponentPartAtAllTimes(x,w)) ∧ ∃p(PressureContainmentFunction(p) ∧ hasFunction(x,p)))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive classification based on structural configuration. Under OWA, sufficient conditions for enclosure structure could lead to over-classification of complex assemblies that contain enclosure elements but serve different primary functions (e.g., pressure vessels, housings, containers)."@en ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
EnclosureFunction ⊑ DesignedFunction
Realized in
EnclosureProcess ⊑ PlannedProcess
All casings share the basic function of providing an enclosure - creating a protective boundary that separates internal components/fluids from the external environment. This is the common identity-giving function across pump casings, compressor casings, battery casings, and well casings.
2 Genus DeterminationDeterminação do Gênero
Assemblybfo:Object (BFO_0000030)
Casings are typically assemblies with multiple connected components (covers, gaskets, connection points, internal features) that form a single causally unified enclosure. The parent candidates 'ENCLOSURE' and 'ARTEFACT' from ISO 15926 are too abstract. No domain-specific casing superclass exists in the enriched list, so Assembly is the most appropriate BFO/IOF-Core root.
3 Differentia SpecificaDiferença Específica
∃bearerOf.EnclosureFunction ⊓ ∃hasPart.CasingWall

An assembly that can maintain pressure differences through its walls and provides structural enclosure for equipment internals or fluids.

The pressure containment capability distinguishes casings from general housings or covers. The CasingWall component represents the essential structural element that provides the enclosure boundary. These conditions are minimal and discriminating.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

The casing wall is the fundamental structural component that defines the enclosure. Connection points are common but not universal (some casings are permanently sealed).
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': '0-n', 'constraints': 'various phases depending on application'}, {'type': 'MaterialComponent', 'count': '1-n', 'constraints': 'equipment internals to be enclosed'}
OutputsSaídas
{'type': 'MaterialComponent', 'count': 1, 'constraints': 'pressurized or protected internal volume'}
TransformationTransformação
spatial enclosure and pressure barrier creation - no material transformation of enclosed contents
Casings create protected internal volumes for equipment internals and may contain various fluids. The transformation is spatial/protective rather than material processing.
MetadataMetadados
COPI IDCOPI IDCOPI_0000222
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000222
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-15
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroAssembly
Root classClasse raizAssembly
Axiom modeModonecessary
FunctionFunçãoEnclosureFunction
ProcessProcessoEnclosureProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 4 sources
ISO 15926-4 CASING
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.
CFIHOS casing
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 casing
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 Casing
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.