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:
Dec. 22, 1992
Filed:
Aug. 30, 1991
Shane S Mohammadi, Tustin, CA (US);
Shlomo R Frieman, Los Angeles, CA (US);
Union Oil Company of California, Los Angeles, CA (US);
Abstract
The time delay experienced between the commencement of the steam-foam drive and the subsequent incremental increase in oil production rate is reduced by simultaneously (a) injecting steam into the lower level of a subterranean oil-bearing formation and (b) injecting foam into the upper elevation of the formation. Preferably, the elevation where the foam is injected is gradually lowered while maintaining the steam injection elevation substantially constant. The accelerated response rate improves the economics of the steam-foam drive.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile