# baseURI: http://www.reportinghub.no/ep/schema/1.0/well
# imports: http://www.reportinghub.no/ep/schema/1.0/core
# imports: http://www.reportinghub.no/ep/schema/1.0/equipment
# imports: http://www.reportinghub.no/ep/schema/1.0/facility
# imports: http://www.reportinghub.no/ep/schema/1.0/material

@prefix ep-core:  <http://www.reportinghub.no/ep/schema/core#> .
@prefix ep-fac:  <http://www.reportinghub.no/ep/schema/facility#> .
@prefix ep-well:  <http://www.reportinghub.no/ep/schema/well#> .
@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#> .

<http://www.reportinghub.no/ep/schema/1.0/well>
      rdf:type owl:Ontology ;
      owl:imports <http://www.reportinghub.no/ep/schema/1.0/material> , <http://www.reportinghub.no/ep/schema/1.0/facility> , <http://www.reportinghub.no/ep/schema/1.0/equipment> , <http://www.reportinghub.no/ep/schema/1.0/core> ;
      owl:versionInfo "0.1.0"^^xsd:string .

<http://www.reportinghub.no/ep/schema/equipment#Equipment>
      rdfs:subClassOf ep-core:PhysicalObject .

<http://www.reportinghub.no/ep/schema/material#Condensate>
      rdf:type ep-well:FluidComponentType .

<http://www.reportinghub.no/ep/schema/material#Filtrate>
      rdf:type ep-well:FluidComponentType .

<http://www.reportinghub.no/ep/schema/material#Gas>
      rdf:type ep-well:FluidComponentType .

<http://www.reportinghub.no/ep/schema/material#Oil>
      rdf:type ep-well:FluidComponentType .

<http://www.reportinghub.no/ep/schema/material#Water>
      rdf:type ep-well:FluidComponentType .

ep-well:CementingFluid
      rdf:type owl:Class ;
      rdfs:label "cementing fluid"^^xsd:string ;
      rdfs:subClassOf <http://www.reportinghub.no/ep/schema/material#Fluid> .

ep-well:CementingFluidType
      rdf:type owl:Class ;
      rdfs:label "cementing fluid type"^^xsd:string ;
      rdfs:subClassOf ep-well:FluidType .

ep-well:ClassOfWellBoreSectionBySize
      rdf:type rdfs:Class ;
      rdfs:label "class of wellbore section by size"^^xsd:string ;
      rdfs:subClassOf owl:Class .

ep-well:Cluster
      rdf:type owl:Class , ep-fac:ProductionFacilityType ;
      rdfs:label "cluster"^^xsd:string ;
      rdfs:subClassOf ep-core:PhysicalObject .

ep-well:FluidComponentType
      rdf:type rdfs:Class ;
      rdfs:label "fluid component type"^^xsd:string ;
      rdfs:subClassOf owl:Class .

ep-well:FluidType
      rdf:type owl:Class ;
      rdfs:label "fluid type"^^xsd:string ;
      rdfs:subClassOf owl:Class .

ep-well:HphtWellBore
      rdf:type owl:Class , ep-well:WellBoreHphtType ;
      rdfs:label "high pressure high temperature well bore"^^xsd:string ;
      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
      owl:disjointWith ep-well:NotHphtWellBore .

ep-well:LeakyWellBore
      rdf:type owl:Class , ep-well:WellBoreTightnessType ;
      rdfs:label "leaky well bore"^^xsd:string ;
      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
      owl:disjointWith ep-well:TightWellBore .

ep-well:LowerPartOfAWellBore
      rdf:type owl:Class ;
      rdfs:label "lower part of a well bore"^^xsd:string ;
      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .

ep-well:Mud
      rdf:type owl:Class , ep-well:CementingFluidType ;
      rdfs:label "mud"^^xsd:string ;
      rdfs:subClassOf ep-well:CementingFluid ;
      owl:disjointWith ep-well:Wash , ep-well:Spacer , ep-well:Slurry .

ep-well:Mud-oilBased
      rdf:type owl:Class , ep-well:MudClass ;
      rdfs:label "mud - oil based"^^xsd:string ;
      rdfs:subClassOf ep-well:Mud ;
      owl:disjointWith ep-well:Mud-waterBased , ep-well:Mud-other .

ep-well:Mud-other
      rdf:type owl:Class , ep-well:MudClass ;
      rdfs:label "mud - other"^^xsd:string ;
      rdfs:subClassOf ep-well:Mud ;
      owl:disjointWith ep-well:Mud-waterBased , ep-well:Mud-oilBased .

ep-well:Mud-waterBased
      rdf:type owl:Class , ep-well:MudClass ;
      rdfs:label "mud - water based"^^xsd:string ;
      rdfs:subClassOf ep-well:Mud ;
      owl:disjointWith ep-well:Mud-other , ep-well:Mud-oilBased .

ep-well:MudClass
      rdf:type owl:Class ;
      rdfs:label "mud class"^^xsd:string ;
      rdfs:subClassOf ep-well:FluidType .

ep-well:NotHphtWellBore
      rdf:type owl:Class , ep-well:WellBoreHphtType ;
      rdfs:label "not high pressure high temperature well bore"^^xsd:string ;
      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
      owl:disjointWith ep-well:HphtWellBore .

ep-well:PositionWithinWellBore
      rdf:type owl:Class ;
      rdfs:label "position within wellbore"^^xsd:string ;
      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .

ep-well:RecoveredCore
      rdf:type owl:Class ;
      rdfs:label "recovered core"^^xsd:string ;
      rdfs:subClassOf ep-core:PhysicalObject .

ep-well:Slurry
      rdf:type owl:Class , ep-well:CementingFluidType ;
      rdfs:label "slurry"^^xsd:string ;
      rdfs:subClassOf ep-well:CementingFluid ;
      owl:disjointWith ep-well:Wash , ep-well:Spacer , ep-well:Mud .

ep-well:Spacer
      rdf:type owl:Class , ep-well:CementingFluidType ;
      rdfs:label "spacer"^^xsd:string ;
      rdfs:subClassOf ep-well:CementingFluid ;
      owl:disjointWith ep-well:Wash , ep-well:Slurry , ep-well:Mud .

ep-well:SpatialPartOfAWell
      rdf:type owl:Class ;
      rdfs:label "spatial part of a well "^^xsd:string ;
      rdfs:subClassOf ep-core:PhysicalObject .

ep-well:SpatialPartOfAWellBore
      rdf:type owl:Class ;
      rdfs:label "spatial part of a well bore"^^xsd:string ;
      rdfs:subClassOf ep-core:PhysicalObject .

ep-well:SurroundingRockFormation
      rdf:type owl:Class ;
      rdfs:label "surrounding rock formation"^^xsd:string ;
      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .

ep-well:TemporalPartOfAWell
      rdf:type owl:Class ;
      rdfs:label "(temporal part of a) well"^^xsd:string ;
      rdfs:subClassOf ep-core:PhysicalObject .

ep-well:TemporalPartOfAWellBore
      rdf:type owl:Class ;
      rdfs:label "(temporal part of a) wellbore"^^xsd:string ;
      rdfs:subClassOf ep-core:PhysicalObject .

ep-well:TightWellBore
      rdf:type owl:Class , ep-well:WellBoreTightnessType ;
      rdfs:label "tight well bore"^^xsd:string ;
      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
      owl:disjointWith ep-well:LeakyWellBore .

ep-well:UserDescribedCementingFluidType
      rdf:type owl:Class ;
      rdfs:label "user described cementing fluid type"^^xsd:string ;
      rdfs:subClassOf ep-well:FluidType .

ep-well:Wash
      rdf:type owl:Class , ep-well:CementingFluidType ;
      rdfs:label "wash"^^xsd:string ;
      rdfs:subClassOf ep-well:CementingFluid ;
      owl:disjointWith ep-well:Spacer , ep-well:Slurry , ep-well:Mud .

ep-well:Well
      rdf:type owl:Class , ep-fac:ProductionFacilityType ;
      rdfs:label "well (whole life)"^^xsd:string ;
      rdfs:subClassOf ep-well:TemporalPartOfAWell .

ep-well:WellBore
      rdf:type owl:Class , ep-fac:ProductionFacilityType ;
      rdfs:label "wellbore (whole life)"^^xsd:string ;
      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
      rdfs:subClassOf
              [ rdf:type owl:Restriction ;
                owl:cardinality "1"^^xsd:nonNegativeInteger ;
                owl:onProperty ep-core:name
              ] .

ep-well:WellBoreBottom
      rdf:type owl:Class , ep-fac:ProductionFacilityType ;
      rdfs:label "wellbore bottom"^^xsd:string ;
      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .

ep-well:WellBoreHphtType
      rdf:type rdfs:Class ;
      rdfs:label "well bore high pressure high temperature type"^^xsd:string ;
      rdfs:subClassOf owl:Class .

ep-well:WellBoreKickOff
      rdf:type owl:Class ;
      rdfs:label "wellbore kickoff"^^xsd:string ;
      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .

ep-well:WellBorePilotHole
      rdf:type owl:Class ;
      rdfs:label "wellbore pilot hole"^^xsd:string ;
      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .

ep-well:WellBoreSection
      rdf:type owl:Class ;
      rdfs:label "wellbore section"^^xsd:string ;
      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .

ep-well:WellBoreTightnessType
      rdf:type rdfs:Class ;
      rdfs:label "well bore tightness type"^^xsd:string ;
      rdfs:subClassOf owl:Class .

ep-well:WellBoreWithCirculation
      rdf:type owl:Class ;
      rdfs:label "well bore with circulation"^^xsd:string ;
      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
      owl:disjointWith ep-well:WellBoreWithoutCirculation .

ep-well:WellBoreWithoutCirculation
      rdf:type owl:Class ;
      rdfs:label "well bore without circulation"^^xsd:string ;
      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
      owl:disjointWith ep-well:WellBoreWithCirculation .

ep-well:WellGroup
      rdf:type owl:Class , ep-fac:ProductionFacilityType ;
      rdfs:label "well group"^^xsd:string ;
      rdfs:subClassOf ep-core:PhysicalObject .

ep-well:WellHead
      rdf:type owl:Class , ep-fac:ProductionFacilityType ;
      rdfs:label "well head"^^xsd:string ;
      rdfs:subClassOf ep-well:SpatialPartOfAWell .

ep-well:averageBottomHolePressure
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "average bottom hole pressure"^^xsd:string ;
      rdfs:range ep-core:Pressure .

ep-well:averageBottomHoleTemperature
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "average bottom hole temperature"^^xsd:string ;
      rdfs:range ep-core:Temperature .

ep-well:azimuth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:PositionWithinWellBore ;
      rdfs:label "azimuth"^^xsd:string ;
      rdfs:range ep-core:PlaneAngle .

ep-well:bottomHoleMeasuredDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "bottom hole measured depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:bottomHoleTemperature
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "bottom hole temperature"^^xsd:string ;
      rdfs:range ep-core:Temperature .

ep-well:bottomHoleTrueVerticalDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "bottom hole true vertical depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:cementingFluidPerCentFreeWater
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:CementingFluid ;
      rdfs:label "cementing fluid per cent free water"^^xsd:string ;
      rdfs:range ep-core:VolumePerUnitVolumeConcentration .

ep-well:cementingFluidThickeningTime
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:CementingFluid ;
      rdfs:label "cementing fluid thickening time"^^xsd:string ;
      rdfs:range ep-core:TimeDuration .

ep-well:coreLength
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:RecoveredCore ;
      rdfs:label "core length"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:diameterOfAWellBorePilotHole
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:WellBorePilotHole ;
      rdfs:label "diameter of a wellbore pilot hole"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:dominantComponent
      rdf:type owl:ObjectProperty ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
      rdfs:label "dominant component"^^xsd:string ;
      rdfs:range ep-well:FluidComponentType .

ep-well:finalBottomHoleMeasuredDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "final bottom hole measured depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:finalBottomHoleTrueVerticalDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "final bottom hole true vertical depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:gasConcentrationHigh
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
      rdfs:label "gas concentration - high"^^xsd:string ;
      rdfs:range ep-core:VolumePerUnitVolumeConcentration .

ep-well:gasConcentrationLow
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
      rdfs:label "gas concentration - low"^^xsd:string ;
      rdfs:range ep-core:VolumePerUnitVolumeConcentration .

ep-well:hasBarrel
      rdf:type owl:ObjectProperty , owl:FunctionalProperty ;
      rdfs:domain ep-well:RecoveredCore ;
      rdfs:label "has barrel"^^xsd:string ;
      rdfs:range <http://www.reportinghub.no/ep/schema/equipment#InnerBarrel> .

ep-well:inclination
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:PositionWithinWellBore ;
      rdfs:label "inclination"^^xsd:string ;
      rdfs:range ep-core:PlaneAngle .

ep-well:initialBottomHoleMeasuredDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "initial bottom hole measured depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:lithologyDescription
      rdf:type owl:DatatypeProperty ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "lithology description"^^xsd:string .

ep-well:measuredDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "measured depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:measuredDepthOfPlugTop
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "measured depth of plug top"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:measuredDepthToTheBottomOfAPartOfAWellBore
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "measured depth to the bottom of a part of a wellbore"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:measuredDepthToTheTopOfAPartOfAWellBore
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "measured depth to the top of a part of a wellbore"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:nominalInsideDiameterOfBoreHole
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "nominal inside diameter of borehole"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:plannedBottomHoleMeasuredDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "planned bottom hole measured depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:plannedPilotBottomHoleMeasuredDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:WellBorePilotHole ;
      rdfs:label "planned pilot bottom hole measured depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:plannedPilotBottomHoleTrueVerticalDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:WellBorePilotHole ;
      rdfs:label "planned pilot bottom hole true vertical depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:porePressure
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "pore pressure"^^xsd:string ;
      rdfs:range ep-core:Pressure .

ep-well:porePressureEquivalentMudDensity
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "pore pressure - equivalent mud density"^^xsd:string ;
      rdfs:range ep-core:Density .

ep-well:ratioOfCementMixToWater
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:CementingFluid ;
      rdfs:label "ratio of cement mix to water"^^xsd:string ;
      rdfs:range ep-core:VolumePerUnitVolumeConcentration .

ep-well:relativeAmountOfCoreRecovered
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:RecoveredCore ;
      rdfs:label "relative amount of core recovered"^^xsd:string ;
      rdfs:range ep-core:VolumePerUnitVolumeConcentration .

ep-well:showDescription
      rdf:type owl:DatatypeProperty ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "show description"^^xsd:string .

ep-well:shutInCasingPressure
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "shut in casing pressure"^^xsd:string ;
      rdfs:range ep-core:Pressure .

ep-well:shutInDrillPipePressure
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "shut in drill pipe pressure"^^xsd:string ;
      rdfs:range ep-core:Pressure .

ep-well:stratigraphyDescription
      rdf:type owl:DatatypeProperty ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "stratigraphy description"^^xsd:string .

ep-well:strengthOfRockFormation
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:SurroundingRockFormation ;
      rdfs:label "strength of rock formation"^^xsd:string ;
      rdfs:range ep-core:StrengthOfRockFormation .

ep-well:trueVerticalDepth
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "true vertical depth"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:trueVerticalDepthToTheBottomOfAPartOfAWellBore
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "true vertical depth to the bottom of a part of a wellbore"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:trueVerticalDepthToTheTopOfAPartOfAWellBore
      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
      rdfs:domain ep-well:SpatialPartOfAWellBore ;
      rdfs:label "true vertical depth to the top of a part of a wellbore"^^xsd:string ;
      rdfs:range ep-core:Length .

ep-well:wellBoreCompletedAt
      rdf:type owl:FunctionalProperty , owl:DatatypeProperty ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "wellbore completed at"^^xsd:string .

ep-well:wellBorePreSpudAt
      rdf:type owl:FunctionalProperty , owl:DatatypeProperty ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "wellbore pre-spud at"^^xsd:string .

ep-well:wellBoreSpudAt
      rdf:type owl:FunctionalProperty , owl:DatatypeProperty ;
      rdfs:domain ep-well:TemporalPartOfAWellBore ;
      rdfs:label "wellbore spud at"^^xsd:string .