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:
Mar. 06, 1984
Filed:
May. 06, 1982
Applicant:
Inventors:
Stewart Haynes, Jr, Houston, TX (US);
Donald S Mims, Houston, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166272 ;
Abstract
Oil is produced from a steeply dipping subterranean reservoir containing high viscosity petroleum by injecting a fluid comprising steam into the lower portion of the reservoir and withdrawing the oil from production wells in an intermediate portion of the reservoir while injecting a fluid such as cold water into the updip portion of the reservoir to prevent loss of steam vapor therethrough.