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:
May. 21, 2019
Applicant:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Inventors:
Mumtaz Ahmad Quraishi, Dhahran, SA;
Kashif Rahmani Ansari, Dhahran, SA;
Dheeraj Singh Chauhan, Dhahran, SA;
Assignee:
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/26 (2006.01); C09K 8/74 (2006.01); C09K 8/54 (2006.01); E21B 41/02 (2006.01);
U.S. Cl.
CPC ...
C09K 8/74 (2013.01); C09K 8/54 (2013.01); E21B 41/02 (2013.01); E21B 43/26 (2013.01); C09K 2208/32 (2013.01);
Abstract
A method of inhibiting corrosion of metal surfaces of piping, tubing, heat exchangers and other metal equipment during acid stimulation of an oil and gas well is provided. The method includes introduction of an acidic treatment fluid containing an inorganic acid and a corrosion inhibitor of formula I into the oil and gas well.