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:
Oct. 05, 2021
Filed:
May. 25, 2018
Applicant:
Saudi Arabian Oil Company, Dhahran, SA;
Inventors:
Assignee:
Saudi Arabian Oil Company, Dhahran, SA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/532 (2006.01); C09K 8/528 (2006.01); C09K 8/54 (2006.01);
U.S. Cl.
CPC ...
C09K 8/532 (2013.01); C09K 8/528 (2013.01); C09K 8/54 (2013.01); C09K 2208/20 (2013.01); C09K 2208/32 (2013.01);
Abstract
Dissolving iron sulfide on the carbon steel tubing to yield chelated iron is achieved by treating the carbon steel tubing with a composition including an iron chelant and an additive. The additive includes at least one of an oxidizing agent and a base. A weight ratio of the iron chelant to the additive is in a weight range of 50:1 to 5:1.