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:
Jan. 18, 1983
Filed:
Oct. 20, 1980
Donald J Anderson, Newport Beach, CA (US);
Chevron Research Company, San Francisco, CA (US);
Abstract
A method is disclosed for recovering viscous petroleum from subsurface formation, such as tar sands, wherein a substantially horizontal, perforated casing is positioned in the formation and a movable diverter is positioned to direct a hot drive fluid out through the perforations and into the formation to move the viscous petroleum that has been heated by the drive fluid toward a production location. The production is monitored for content of drive fluid and petroleum and the position of the diverter is controlled in accordance with the monitored production to optimize the production of petroleum and to maintain the communication path within the formation between the injection location and the production location.