About: http://webisa.webdatacommons.org/6212969

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	In order to prevent this occurrence, starch, cellulosic and other suitable materials are added to the mud to plug the low-pressure zones and form a cake on the wall of the well bore intersecting the earth formations.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com