The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 1985
Filed:
Jan. 22, 1982
Guy Savard, Westmount, CA;
Robert G Lee, Montreal, CA;
Canadian Liquid Air Ltd/Air Liquide, Montreal, CA;
Abstract
An oil recovery installation made up of an inner conduit for an oxidant gas and a surrounding outer conduit forming therebetween a water jacket for cooling liquid leading from an upper end at the surface through a sealing well casing to a lower end within the underground oil recovery formation. Terminal means closes the lower end of the outer conduit and provides a restricted passage in communication with the inner conduit for injecting oxygen into the formation. There is means for supplying oxidant gas under pressure to the upper end of the inner conduit and means for supplying water to circulate within the cooling jacket. There is means for controlling the supply rate of oxidant gas and means for controlling the water supply rate.