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exported equivalent COPI_0000723
Drill Bit
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000723
Generated onGerado em 2026-08-08
Natural Language DefinitionDefinição em Linguagem Natural
EN
A material artifact that bears a rock cutting function, used to crush or cut formation rock in order to create a borehole.
PT-BR
Um artefato material que possui uma função de corte de rocha, usado para triturar ou cortar rocha da formação a fim de criar um poço.
Formal AxiomsAxiomas Formais
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (DrillBit(x) ↔ MaterialArtifact(x) ∧ ∃f (RockCuttingFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: RockCuttingFunction]∀f (RockCuttingFunction(f) → ∀p (realizedIn(f,p) → RockCuttingProcess(p)) ∧ ∃p (RockCuttingProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Process participation signature]∀x ∀f ((DrillBit(x) ∧ RockCuttingFunction(f) ∧ bearerOf(x,f)) → ∃m (PortionOfSolid(m) ∧ participatesIn(m,f)) ∧ ∃e (RockCuttings(e) ∧ participatesIn(e,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: DrillBit <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 "1.1.0-134-g6e3b4fb" ; 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 "2026-09-04"^^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 :RockCuttingFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :RockCuttingProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :RockCuttingProcess ] ; rdfs:label "rock cutting function"@en . ### Process type :RockCuttingProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "rock cutting process"@en . :RockCuttingProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :PortionOfSolid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :RockCuttings ] . ### Equipment universal: DrillBit :DrillBit rdf:type owl:Class ; owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( iof-core:MaterialArtifact [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :RockCuttingFunction ] ) ] ; rdfs:label "drill bit"@en ; rdfs:label "broca"@pt-br ; iof-av:naturalLanguageDefinition "A material artifact that bears a rock cutting function, used to crush or cut formation rock in order to create a borehole."@en ; skos:definition "A material artifact that bears a rock cutting function, used to crush or cut formation rock in order to create a borehole."@en ; iof-av:naturalLanguageDefinition "Um artefato material que possui uma função de corte de rocha, usado para triturar ou cortar rocha da formação a fim de criar um poço."@pt-br ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
RockCuttingFunction ⊑ DesignedFunction
Realized in
RockCuttingProcess ⊑ PlannedProcess
All three sources define the drill bit purely by what it does to rock — 'used to create cylindrical holes', 'rock cutting device', 'tool used to crush or cut rock'. None constrains its construction, so the function is identity-giving and sufficient.
2 Genus DeterminationDeterminação do Gênero
MaterialArtifactbfo:Object (BFO_0000030)
ISO 15926 types it as a CUTTING TOOL, which COPI does not declare; MaterialArtifact is the nearest available superclass.
3 Differentia SpecificaDiferença Específica
∃bearerOf.RockCuttingFunction

A material artifact that bears a rock cutting function, comminuting formation rock to advance a borehole.

Purely functional basis — the three source definitions agree on function and say nothing about construction, so equivalence is safe and lets the reasoner classify bit subtypes automatically.
4 Necessary PartsPartes Necessárias

No necessary parts recorded.

No sub-component is named in any source definition for this term. validate_necessary_parts_quotes() requires a verbatim source_quote for every part, and there is nothing to quote — so no parts are asserted (ODR-022 §10.2).
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'PortionOfSolid', 'count': 1, 'constraints': 'in-situ formation rock at the bottom of the borehole'}
OutputsSaídas
{'type': 'RockCuttings', 'count': 1, 'constraints': 'comminuted rock fragments released into the drilling fluid'}
TransformationTransformação
mechanical comminution of formation rock to advance a borehole
MetadataMetadados
COPI IDCOPI IDCOPI_0000723
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000723
StatusStatusexported
Axiom modeModoequivalent
CreatedCriado2026-08-08
UpdatedAtualizado2026-09-03
LLM modelModelo LLMclaude-opus-5
VersionVersão2026-09-04
Quick factsDados rápidos
GenusGêneroMaterialArtifact
Root classClasse raizMaterialArtifact
Axiom modeModoequivalent
FunctionFunçãoRockCuttingFunction
ProcessProcessoRockCuttingProcess
PartsPartes0
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 DRILL BIT
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 drill bit
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 Drill bit
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.