exported
equivalent
scraper
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Scraper
Generated on 2026-04-15
Natural Language Definition
EN
A scraper is a material artifact that bears a scraping function for mechanically removing deposits, debris, or contaminants from surfaces.
PT-BR
Um raspador é um artefato material que possui uma função de raspagem para remover mecanicamente depósitos, detritos ou contaminantes de superfícies.
Formal Axioms
Semi-formal (Aristotelian)
Every scraper is a material artifact that has a scraping function, and every material artifact that has a scraping function is a scraper.
First-Order Logic Theory
Loading…
▸ Stored override
∀x(Scraper(x) ↔ (MaterialArtifact(x) ∧ ∃f(ScrapingFunction(f) ∧ bearerOf(x,f))))
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: Scraper
<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 "2026-10-08"^^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
:COPI_0000627 rdf:type owl:Class ; # ScrapingFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000628 # ScrapingProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000628 # ScrapingProcess
] ;
rdfs:label "scraping function"@en ;
rdfs:label "função de raspagem"@pt-br .
### Process type
:COPI_0000628 rdf:type owl:Class ; # ScrapingProcess
rdfs:subClassOf iof-core:PlannedProcess ;
rdfs:label "scraping process"@en ;
rdfs:label "processo de raspagem"@pt-br .
:COPI_0000628 # ScrapingProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom iof-core:MaterialArtifact # Surface
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom iof-core:MaterialArtifact # Surface
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000400 # RemovedMaterial
] .
### Equipment universal: Scraper
:COPI_0000344 rdf:type owl:Class ; # Scraper
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 :COPI_0000627 # ScrapingFunction
]
)
] ;
rdfs:label "scraper"@en ;
rdfs:label "raspador"@pt-br ;
iof-av:naturalLanguageDefinition "A scraper is a material artifact that bears a scraping function for mechanically removing deposits, debris, or contaminants from surfaces."@en ;
skos:definition "A scraper is a material artifact that bears a scraping function for mechanically removing deposits, debris, or contaminants from surfaces."@en ;
iof-av:naturalLanguageDefinition "Um raspador é um artefato material que possui uma função de raspagem para remover mecanicamente depósitos, detritos ou contaminantes de superfícies."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every scraper is a material artifact that has a scraping function, and every material artifact that has a scraping function is a scraper."@en ;
iof-av:firstOrderLogicAxiom "∀x(Scraper(x) ↔ (MaterialArtifact(x) ∧ ∃f(ScrapingFunction(f) ∧ bearerOf(x,f))))"@en ;
skos:definition "[ISO 15926-4] A <SCRAPER> is a <FunctionalObject> that is capable of <SCRAPING>"@en ;
skos:definition "[CFIHOS] A physical object intended to mechanically remove a deposit from a surface."@en ;
skos:definition "[SLB Glossary] Also called a pig, a device with blades or brushes inserted in a pipeline for cleaning purposes."@en ;
skos:definition "[OnePetro] A device that cuts through paraffin, asphaltenes, etc. inside the pipe. Run on wireline."@en .
# Disjointness: Scraper and Filter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000344 :COPI_0000081 ) . # Scraper, Filter
# Disjointness: Scraper and Separator
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000344 :COPI_0000084 ) . # Scraper, Separator
Axiomatization Decision Log
1
Identity-Giving Function
Function class
ScrapingFunction
⊑ DesignedFunction
Realized in
ScrapingProcess
⊑ PlannedProcess
The identity-giving function is the mechanical removal of deposits, debris, scale, paraffin, or other contaminants from internal surfaces. This is consistently described across all sources as the defining capability that makes a scraper a scraper, regardless of its specific physical configuration or deployment method.
2
Genus Determination
MaterialArtifact
bfo:Object (BFO_0000030)
Monolithic causally unified material artefact.
MaterialArtifact ≡ Object ⊓ ∃bearerOf.DesignedFunction.
No appropriate domain-specific superclass exists in the parent candidates or enriched classes. A scraper is a causally unified engineered artifact designed for a specific function, typically deployed as a single maintainable unit. While some scrapers may have removable components (blades, brushes), they function as integrated tools rather than multi-component assemblies requiring separate maintenance of subcomponents.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
The scraping element is the only universally necessary part - the specific form varies by subtype (blades for paraffin scrapers, brushes for pipeline pigs, cutting teeth for casing scrapers) but some scraping mechanism must always be present.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
Surface
— surface with deposits, scale, debris, or contaminants
Outputs (O)
Surface
— surface with reduced contamination
RemovedMaterial
— scraped debris or deposits
Transformation (T)
mechanical removal of surface contaminants through scraping action
The characteristic process signature involves taking a contaminated surface and mechanically removing deposits to produce a cleaned surface and separated waste material.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
Filter
Separator
C4: Separator. C?: Filter [kind_ambiguous]. Scrapers use mechanical surface contact for material removal, while filters and separators rely on physical separation principles without direct mechanical scraping contact.
Cross-Standard Observations
Consistent functional definition across sources. SLB notes scrapers are 'also called pigs' highlighting the close relationship with pipeline inspection devices. OnePetro specifies wireline deployment while SLB mentions pipeline insertion, indicating different deployment methods for different applications (downhole vs pipeline).
