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. 06, 2022
Filed:
Apr. 03, 2020
Applicant:
Fluid Energy Group Ltd., Calgary, CA;
Inventors:
Clay Purdy, Medicine Hat, CA;
Markus Weissenberger, Calgary, CA;
Karl W. Dawson, Calgary, CA;
Kyle G. Wynnyk, Calgary, CA;
Assignee:
FLUID ENERGY GROUP LTD, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 13/08 (2006.01); C03C 15/00 (2006.01); C09K 8/528 (2006.01); C09K 8/72 (2006.01); C23F 1/16 (2006.01);
U.S. Cl.
CPC ...
C09K 13/08 (2013.01); C03C 15/00 (2013.01); C09K 8/528 (2013.01); C09K 8/72 (2013.01); C23F 1/16 (2013.01);
Abstract
An inhibited hydrofluoric acid aqueous composition, said composition comprising: hydrofluoric acid in solution; and a weak base selected from the group consisting of: lysine, arginine, histidine, glutamine, asparagine, tryptophan, and tyrosine; wherein said weak base and hydrofluoric acid are present in a molar ratio of at least 1:1. Also disclosed is a mud acid using this inhibited acid composition.