About: http://webisa.webdatacommons.org/252352577

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	he bottom of the well, such as in the form of an expendable plug, or the packer assembly is operated to distend the packing element radially to seal a well annulus, for example.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au