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<http://webisa.webdatacommons.org/346566649>	<http://www.w3.org/ns/prov#value>	"A fluid, such as compressed air, may be provided down substantially vertical well bore 87412 in the annulus between a tubing 87480 and the surface of substantially vertical well bore 87412." .
<http://webisa.webdatacommons.org/prov/467532296>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/346566649> .
<http://webisa.webdatacommons.org/346566649>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .