PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This well was particularly challenging due to concerns that the viscous consolidation fluid could not be injected into the low-permeability formation without exceeding the fracture gradient of the formation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • drillingcontractor.org