Threaded end of a tubular component for drilling or working hydrocarbon wells, and resulting connection
AssigneesNippon Steel & Sumitomo Metal Corporation, Vallourec Mannesmann Oil & Gas France
InventorsEric Gard, Eliette Pinel, Mikael Petit
Life of this patent
Estimating the term…
Abstract
A threaded end (1; 2) of a tubular component for drilling or working hydrocarbon wells, said end comprising a threaded zone (3; 4) produced on its external or internal peripheral surface depending on whether the threaded end is male or female in type, at least a portion of the end (1; 2) being coated with a dry film comprising an organic matrix in which ion exchange pigments are dispersed in proportions in the range 3% to 30% by weight; and a connection resulting from connecting two corresponding ends by makeup.
Claims20
A threaded end of a tubular component, said threaded end comprising a threaded zone on an external or internal peripheral surface of the threaded end depending on whether the threaded end is male or female, wherein at least a portion of the threaded end is coated with a dry film comprising an organic matrix in which 3% to 30% by weight of ion exchange pigments are dispersed.
Dependencies are inferred from the claim text.