PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Industry-wide adoption of networked drill strings require that the system is a viable alternative to conventional strings in terms of expense that lower well cost through increased efficiency, improved wellbore quality and reduced risk exposure.
http://www.w3.org/ns/prov#wasQuotedFrom
  • drillingcontractor.org