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. 27, 2026
Filed:
Jan. 23, 2026
King Fahd University of Petroleum and Minerals, Dhahran, SA;
King Fahd University of Petroleum and Minerals, Dhahran, SA;
Abstract
A method of barite scale removal includes injecting a drilling fluid system containing a nanodot-treated chelating agent into tubing disposed in a wellbore in a subterranean geological formation. A chelating agent in the nanodot-treated chelating agent is diethylenetriamine pentaacetate and/or ethylenediaminetetraacetic acid. The nanodot-treated chelating agent has an emission wavelength of 400 to 500 nm while being illuminated with ultraviolet light at a wavelength of 365 nm. The method further includes circulating the drilling fluid system in the tubing to remove the scale from the tubing.
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