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. 04, 2014
Filed:
Mar. 15, 2011
Applicants:
Charles A. Lumsden, Greensboro, GA (US);
Raul O. Diaz, Spring, TX (US);
Inventors:
Charles A. Lumsden, Greensboro, GA (US);
Raul O. Diaz, Spring, TX (US);
Assignees:
Montgomery Chemicals, LLC, Conshohocken, PA (US);
Nalco Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/20 (2006.01); E21B 43/25 (2006.01); C09K 8/68 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for enhanced oil recovery includes the steps of providing an alkali metal borohydride; providing an alkali metal bisulfite; combining the alkali metal borohydride and the alkali metal bisulfite along with water to provide an oxygen-scavenger composition; combining the oxygen-scavenger composition and an aqueous composition to provide an oil recovery solution; and introducing the oil recovery solution into an earthen formation at a pressure to provide for enhanced oil recovery.