PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It is used in conjunction with the MZ multi-zone completion service, which uses single-trip technology to set packers, a method that is especially effective in sandstone reservoirs, zones with unwanted gas or water and wells needing both fracturing and gravel packs.
http://www.w3.org/ns/prov#wasQuotedFrom
  • drillingcontractor.org