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:
Sep. 06, 1977
Filed:
Mar. 18, 1976
Applicant:
Inventors:
Alfred Brown, Houston, TX (US);
Stephen F Hager, Houston, TX (US);
Moutaz Chichakli, Dhahran, SA;
Ching H Wu, Golden, CO (US);
Assignee:
Texaco Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166273 ; 166275 ; 252 / ;
Abstract
Oil is recovered from an oil-bearing subterranean formation penetrated by an injection well and a production well by injecting into the formation via the injection well a solution of a normally solid polymerized methacrylate and oil displaced by the injected solution is recovered from the formation via the production well. Optionally, after the solvent solution has been injected, a hydrocarbon slug such as crude oil, petroleum distillate, a soluble oil composition, etc. may be injected and, if desired, this may be followed by injection of water.