About: http://webisa.webdatacommons.org/22150540

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 invention therefore deals with the use of the resonant properties of a well (oil, gas, brine or other chemical solutions, or water) to locate and evaluate downhole features critical to the safe and profitable operation of a well.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk