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:
Mar. 17, 2020
Filed:
Dec. 20, 2012
Vallourec Oil and Gas France, Aulnoye-Aymeries, FR;
Nippon Steel & Sumitomo Metal Corporation, Chiyoda-ku, JP;
Eric Gard, Genay, FR;
Mohamed Gouider, Caluire-et-Cuire, FR;
Mikael Petit, Villefrance sur Saone, FR;
Eliette Pinel, Sainte-Euphemie, FR;
VALLOUREC OIL AND GAS FRANCE, Aulnoye-Aymeries, FR;
NIPPON STEEL CORPORATION, Chiyoda-ku, JP;
Abstract
A method for producing a matrix-containing dry film on a threaded tubular component for drilling or working hydrocarbon wells, by applying a mixture containing a dispersion or an aqueous emulsion of an acrylic copolymer with a solution of an alkaline polysilicate in a liquid state onto a threaded end of the threaded tubular component by spraying at a temperature of from 20° C. to 40° C. thereby obtaining a threaded end coated with a film; drying the threaded end coated with the film; and densifying the film.