About: http://webisa.webdatacommons.org/18100879

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	For example, in gas plays such as the Marcellus and Barnett, cemented completions using plug-and-perf techniques are still the norm.
http://www.w3.org/ns/prov#wasQuotedFrom	drillingcontractor.org