← Class ReferenceReferência de Classes
exported equivalent COPI_0000320
Pig Trap
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000320
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
A pig trap is an assembly that bears the function of launching and receiving pipe pigs for pipeline maintenance and has both launcher and receiver components.
PT-BR
Uma armadilha de pig é um conjunto que possui a função de lançar e receber pigs de tubulação para manutenção de dutos e possui componentes de lançador e receptor.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every pig trap is an assembly that bears a pig launching and receiving function and has component parts that are a pig launcher and a pig receiver.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (PigTrap(x) ↔ Assembly(x) ∧ ∃f (PigLaunchingAndReceivingFunction(f) ∧ bearerOf(x,f)) ∧ ∃bearerOf.PigLaunchingAndReceivingFunction ⊓ ∃hasComponentPartAtAllTimes.PigLauncher ⊓ ∃hasComponentPartAtAllTimes.PigReceiver) — Steps 1–3: genus + identity-giving function [Function axiom: PigLaunchingAndReceivingFunction]∀f (PigLaunchingAndReceivingFunction(f) → ∀p (realizedIn(f,p) → PigLaunchingAndReceivingProcess(p)) ∧ ∃p (PigLaunchingAndReceivingProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Necessary part: PigLauncher]∀x (PigTrap(x) → ∃p (PigLauncher(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Necessary part: PigReceiver]∀x (PigTrap(x) → ∃p (PigReceiver(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((PigTrap(x) ∧ PigLaunchingAndReceivingFunction(f) ∧ bearerOf(x,f)) → ∃m1 (FluidPortion(m1) ∧ participatesIn(m1,f)) ∧ ∃m2 (PipePig(m2) ∧ participatesIn(m2,f)) ∧ ∃e1 (FluidPortion(e1) ∧ participatesIn(e1,f)) ∧ ∃e2 (PipePig(e2) ∧ participatesIn(e2,f)) ∧ processType(f,SubsurfaceAccess)) — 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: PigTrap <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 :PigLaunchingAndReceivingFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :PigLaunchingAndReceivingProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :PigLaunchingAndReceivingProcess ] ; rdfs:label "pig launching and receiving function"@en ; rdfs:label "função de lançamento e recebimento de pig"@pt-br . ### Process type :PigLaunchingAndReceivingProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "pig launching and receiving process"@en ; rdfs:label "processo de lançamento e recebimento de pig"@pt-br . :PigLaunchingAndReceivingProcess 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 :PipePig ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :FluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :PipePig ] . ### Equipment universal: PigTrap :PigTrap 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 :PigLaunchingAndReceivingFunction ] [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :PigLauncher ] [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :PigReceiver ] ) ] ; rdfs:label "pig trap"@en ; rdfs:label "armadilha de pig"@pt-br ; iof-av:naturalLanguageDefinition "A pig trap is an assembly that bears the function of launching and receiving pipe pigs for pipeline maintenance and has both launcher and receiver components."@en ; skos:definition "A pig trap is an assembly that bears the function of launching and receiving pipe pigs for pipeline maintenance and has both launcher and receiver components."@en ; iof-av:naturalLanguageDefinition "Uma armadilha de pig é um conjunto que possui a função de lançar e receber pigs de tubulação para manutenção de dutos e possui componentes de lançador e receptor."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every pig trap is an assembly that bears a pig launching and receiving function and has component parts that are a pig launcher and a pig receiver."@en ; iof-av:firstOrderLogicAxiom "∀x(PigTrap(x) ↔ Assembly(x) ∧ ∃f(PigLaunchingAndReceivingFunction(f) ∧ bearerOf(x,f)) ∧ ∃l(PigLauncher(l) ∧ hasComponentPartAtAllTimes(x,l)) ∧ ∃r(PigReceiver(r) ∧ hasComponentPartAtAllTimes(x,r)))"@en ; :PigLauncher rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "lançador de pig"@pt-br ; rdfs:label "pig launcher"@en . :PigReceiver rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "recebedor de pig"@pt-br ; rdfs:label "pig receiver"@en . # Disjointness: PigTrap and Filter [] rdf:type owl:AllDisjointClasses ; owl:members ( :PigTrap :Filter ) . # Disjointness: PigTrap and Separator [] rdf:type owl:AllDisjointClasses ; owl:members ( :PigTrap :Separator ) . # Disjointness: PigTrap and Valve [] rdf:type owl:AllDisjointClasses ; owl:members ( :PigTrap :Valve ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
PigLaunchingAndReceivingFunction ⊑ DesignedFunction
Realized in
PigLaunchingAndReceivingProcess ⊑ PlannedProcess
The identity-giving function is the capability to launch and receive pipe pigs for pipeline maintenance operations. This is what makes a pig trap distinct from other pipeline equipment - it enables the insertion and retrieval of cleaning, inspection, or maintenance devices into/from the pipeline.
2 Genus DeterminationDeterminação do Gênero
Assemblybfo:Object (BFO_0000030)
No domain-specific parent candidates are appropriate. 'TOOL' is too general and 'piping and pipeline equipment' is not a formal ontological class. A pig trap is a complex mechanical assembly with launcher and receiver components that work together as a unified maintainable unit. It fits the Assembly pattern as a causally unified artifact with physically connected removable subcomponents.
3 Differentia SpecificaDiferença Específica
∃bearerOf.PigLaunchingAndReceivingFunction ⊓ ∃hasComponentPartAtAllTimes.PigLauncher ⊓ ∃hasComponentPartAtAllTimes.PigReceiver

An assembly that bears the function of launching and receiving pipe pigs and has both launcher and receiver components.

The functional differentia (pig launching/receiving function) combined with the structural differentia (having both launcher and receiver components) uniquely distinguishes pig traps from other pipeline assemblies. Both aspects are necessary as the function requires the specific dual-component structure.
4 Necessary PartsPartes Necessárias
Part classParentRelation
PigLauncherMaterialArtifacthasComponentPartAtAllTimes
PigReceiverMaterialArtifacthasComponentPartAtAllTimes
These parts are constitutive of the pig trap's ability to perform its function. The launcher and receiver are definitional components, while closures are operationally necessary for safe pig handling.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'flowing through pipeline'}, {'type': 'PipePig', 'count': 1, 'constraints': 'maintenance device'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'continuing through pipeline'}, {'type': 'PipePig', 'count': 1, 'constraints': 'after maintenance operation'}
TransformationTransformação
pig insertion/retrieval without interrupting main fluid flow
The pig trap enables pig operations while maintaining pipeline flow continuity. The pig is inserted via launcher and retrieved via receiver while the process fluid continues flowing.
Disjoint WithDisjunto com
Filter Separator Valve
C2: Valve. C4: Filter, Separator. These equipment types have incompatible process signatures - filters/separators modify fluid composition, valves control flow directly, while pig traps handle maintenance device insertion/retrieval without modifying the main process stream
MetadataMetadados
COPI IDCOPI IDCOPI_0000320
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000320
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-04-16
UpdatedAtualizado2026-06-28
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroAssembly
Root classClasse raizAssembly
Axiom modeModoequivalent
FunctionFunçãoPigLaunchingAndReceivingFunction
ProcessProcessoPigLaunchingAndReceivingProcess
PartsPartes2
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 PIG TRAP
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 pig trap
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.
POSC Caesar Pig Trap
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.