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:
Jan. 19, 2021
Filed:
Aug. 08, 2018
Applicant:
National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);
Inventor:
Patrick V. Brady, Sandia Park, NM (US);
Assignee:
National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/20 (2006.01); C09K 8/58 (2006.01);
U.S. Cl.
CPC ...
C09K 8/58 (2013.01); E21B 43/20 (2013.01); C09K 2208/10 (2013.01);
Abstract
Injectates and method that use surface blocking agents for enhancing subterranean oil recovery are disclosed. The surface blocking agents reduce the adhesion of oil to rock surfaces thereby increasing oil recovery. The surface blocking agents attach to or are attracted to the oils positive nitrogen sites and have an opposing negative charge that is repulsed by the negative rock surface charge.