PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Whether you???re drilling a complex well on land or in deep water, remnants of drilling fluid or other debris lingering in the wellbore can require remedial workover trips, cause downhole equipment failure, and even cripple production by plugging the formation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • weatherford.com