← Class ReferenceReferência de Classes
exported equivalent COPI_0000112
Down Hole Safety Valve
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000112
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A down hole safety valve is a safety valve that bears a subsurface safety function for pressure relief and flow control operations in wellbore or other subsurface environments.
PT-BR
Uma válvula de segurança de fundo de poço é uma válvula de segurança que possui uma função de segurança subsuperficial para operações de alívio de pressão e controle de fluxo em poços ou outros ambientes subsuperficiais.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every down hole safety valve is a safety valve that bears a SubsurfaceSafetyFunction and participates in SubsurfaceOperationProcess
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (DownHoleSafetyValve(x) ↔ SafetyValve(x) ∧ ∃f (SubsurfaceSafetyFunction(f) ∧ bearerOf(x,f)) ∧ ∃bearerOf.SubsurfaceDeploymentRole ⊓ ∃participatesIn.SubsurfaceOperationProcess) — Steps 1–3: genus + identity-giving function [Function axiom: SubsurfaceSafetyFunction]∀f (SubsurfaceSafetyFunction(f) → ∀p (realizedIn(f,p) → SubsurfaceSafetyProcess(p)) ∧ ∃p (SubsurfaceSafetyProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((DownHoleSafetyValve(x) ∧ SubsurfaceSafetyFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (FluidPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,PressureReduction)) — 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: DownHoleSafetyValve <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 :SubsurfaceSafetyFunction rdf:type owl:Class ; rdfs:subClassOf :SafetyReliefFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :SubsurfaceSafetyProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :SubsurfaceSafetyProcess ] ; rdfs:label "subsurface safety function"@en ; rdfs:label "função de segurança subsuperficial"@pt-br . :SafetyReliefFunction rdf:type owl:Class . ### Process type :SubsurfaceSafetyProcess rdf:type owl:Class ; rdfs:subClassOf :SafetyReliefProcess ; rdfs:label "subsurface safety process"@en ; rdfs:label "processo de segurança subsuperficial"@pt-br . :SafetyReliefProcess rdf:type owl:Class . :SubsurfaceSafetyProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :FluidPortion ] . ### Equipment universal: DownHoleSafetyValve :DownHoleSafetyValve rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :SafetyValve [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :SubsurfaceSafetyFunction ] ) ] ; rdfs:label "down hole safety valve"@en ; rdfs:label "válvula de segurança de fundo de poço"@pt-br ; iof-av:naturalLanguageDefinition "A down hole safety valve is a safety valve that bears a subsurface safety function for pressure relief and flow control operations in wellbore or other subsurface environments."@en ; skos:definition "A down hole safety valve is a safety valve that bears a subsurface safety function for pressure relief and flow control operations in wellbore or other subsurface environments."@en ; iof-av:naturalLanguageDefinition "Uma válvula de segurança de fundo de poço é uma válvula de segurança que possui uma função de segurança subsuperficial para operações de alívio de pressão e controle de fluxo em poços ou outros ambientes subsuperficiais."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every down hole safety valve is a safety valve that bears a SubsurfaceSafetyFunction and participates in SubsurfaceOperationProcess"@en ; iof-av:firstOrderLogicAxiom "∀x(DownHoleSafetyValve(x) ↔ SafetyValve(x) ∧ ∃f(SubsurfaceSafetyFunction(f) ∧ bearerOf(x,f)) ∧ ∃p(SubsurfaceOperationProcess(p) ∧ participatesIn(x,p)))"@en ; # Disjointness: DownHoleSafetyValve and SurfaceSafetyValve [] rdf:type owl:AllDisjointClasses ; owl:members ( :DownHoleSafetyValve :SurfaceSafetyValve ) . # Disjointness: DownHoleSafetyValve and ManualValve [] rdf:type owl:AllDisjointClasses ; owl:members ( :DownHoleSafetyValve :ManualValve ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
SubsurfaceSafetyFunction ⊑ SafetyReliefFunction
Realized in
SubsurfaceSafetyProcess ⊑ SafetyReliefProcess
The identity-giving function is the safety relief function specialized for subsurface deployment. This combines the core safety valve function (pressure relief/protection) with the specific operational context (downhole/subsurface conditions). The existing SafetyReliefFunction from the enriched safety valve class serves as the parent.
2 Genus DeterminationDeterminação do Gênero
safety valvebfo:Object (BFO_0000030)
ISO 15926 explicitly states this is a subtype of SAFETY VALVE, which is already enriched in our ontology. The genus 'safety valve' is the most specific appropriate superclass, inheriting the SafetyReliefFunction and basic valve structure. This follows the Aristotelian principle of choosing the most specific existing superclass rather than collapsing to a broader category like Valve or Assembly.
3 Differentia SpecificaDiferença Específica
∃bearerOf.SubsurfaceDeploymentRole ⊓ ∃participatesIn.SubsurfaceOperationProcess

Distinguished from other safety valves by its deployment in subsurface/downhole locations for control and check operations in well environments.

The differentia is the subsurface deployment role and participation in subsurface operations. This is locational/contextual specialization rather than functional or structural - the core safety function remains the same but is adapted for downhole conditions including different pressure regimes, temperature conditions, and operational constraints.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

The necessary parts are specializations of standard safety valve components adapted for subsurface deployment. The valve body must handle downhole conditions, and the actuation mechanism must function in the subsurface environment where traditional surface-based control may not be available.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'under pressure in wellbore environment'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'pressure relieved when safety conditions are met'}
TransformationTransformação
pressure relief and flow control in subsurface conditions
Same basic signature as surface safety valves but operating in the specialized environment of a wellbore or subsurface installation with different pressure, temperature, and accessibility constraints.
Disjoint WithDisjunto com
SurfaceSafetyValve ManualValve
C4: manual valve. C?: surface safety valve [unverifiable_class_not_in_db]. Disjoint with surface safety valves due to incompatible deployment contexts (subsurface vs surface). Disjoint with manual valves due to incompatible control signatures (automatic safety response vs manual operation).
MetadataMetadados
COPI IDCOPI IDCOPI_0000112
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000112
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-16
UpdatedAtualizado2026-06-25
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
ISA 5.1-2022 — wikimedia/valve.svg
Quick factsDados rápidos
GenusGênerosafety valve
Root classClasse raizMaterialArtifact
Axiom modeModoequivalent
FunctionFunçãoSubsurfaceSafetyFunction
ProcessProcessoSubsurfaceSafetyProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 2 sources
ISO 15926-4 DOWN HOLE SAFETY VALVE
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 down hole safety valve
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.