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:
Apr. 02, 2024
Filed:
Mar. 18, 2020
Applicant:
Fluid Energy Group Ltd, Calgary, CA;
Inventors:
Clay Purdy, Medicine Hat, CA;
Markus Weissenberger, Calgary, CA;
Stig Magnor Nordaa, Sandnes, NO;
Adrienne Lee, Calgary, CA;
Assignee:
DORF KETAL CHEMICALS FZE, Fujairah, AE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 5/08 (2023.01); C02F 5/10 (2023.01); C02F 5/12 (2023.01); C09K 8/528 (2006.01); C02F 101/10 (2006.01); C02F 103/08 (2006.01); C02F 103/10 (2006.01); E21B 37/06 (2006.01);
U.S. Cl.
CPC ...
C09K 8/528 (2013.01); C02F 5/125 (2013.01); C02F 2101/101 (2013.01); C02F 2103/08 (2013.01); C02F 2103/10 (2013.01); E21B 37/06 (2013.01);
Abstract
The present invention discloses a novel aqueous composition for use in removing petroleum-contaminated barium sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group consisting of: LiDTPA; NaDTPA; KDTPA; CsDTPA; NaEDTA; KEDTA; TEAHDTPA; and TBAHDTPA; a scale removal enhancer; and a non-ionic surfactant. There is also disclosed methods to use such compositions.