About: http://webisa.webdatacommons.org/311174657

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	The non-formation-damaging material must be a material such as sand or gravel which can be easily removed from the wellbore after the completion of the process.
http://www.w3.org/ns/prov#wasQuotedFrom	google.de