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. 10, 2023
Filed:
Oct. 06, 2022
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Mumtaz Ahmad Quraishi, Dhahran, SA;
Kashif Rahmani Ansari, Dhahran, SA;
Dheeraj Singh Chauhan, Dhahran, SA;
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Abstract
A method of inhibiting corrosion of metal during acid stimulation of an oil and gas well is provided. The method includes treating the oil and gas well with an acidic treatment fluid containing an acid, a corrosion inhibitor of formula I, wherein Rto Rare hydrogen, and a secondary corrosion inhibitor of formula (II) wherein Rto Rare independently hydrogen, an alkyl, an aryl, or an alkoxy, The treatment fluid is substantially free of an intensifier, a surfactant, an organic solvent and a dimeric reaction product obtained by a double condensation reaction between thiocarbohydrazide (HN—NH—C(S)—NH—NH) and two cinnamaldehyde compounds.