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. 04, 1984
Filed:
Feb. 28, 1983
Applicant:
Inventor:
David O Falk, Denver, CO (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ; E21B / ;
U.S. Cl.
CPC ...
166295 ; 166270 ; 166272 ; 405264 ; 523130 ;
Abstract
Highly permeable zones in a subterranean formation are selectively plugged by injecting an aqueous solution of an acrylamide polymer, a phenol and an aldehyde via a well into the highly permeable zones. The solution forms a non-flowing, water insoluble polymer resin in situ at a temperature of from about 50.degree. C. to 100.degree. C. and an alkaline pH over a period of from about 1 to 10 days. The polymer resin plugs the highly permeable zones of the formation.