Galling-resistant threaded tubular component, and process for coating said component
A galling-resistant threaded tubular component for drilling or operating hydrocarbon wells and a process for coating the component. The tubular component includes at one of its ends a threaded zone 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 being coated with a dry film including a fluorourethane matrix.
1. A galling-resistant threaded tubular component for drilling or operating hydrocarbon wells, the tubular component comprising:
at one of its ends a threaded zone produced on its external or internal peripheral surface depending on whether the threaded end is male or female in type, wherein at least a portion of the end is coated with a dry film comprising a fluorourethane matrix,
wherein the fluorourethane matrix is obtained by cross-linking fluoroethylene vinylether.
2. A galling-resistant threaded tubular component according to claim 1 , wherein particles of solid lubricants are dispersed in the matrix.
3. A galling-resistant threaded tubular component according to claim 2 , wherein particles of solid lubricants comprise particles of lubricants from at least two of classes 1, 2, 3 and 4.
4. A galling-resistant threaded tubular component according to claim 1 , wherein an anticorrosion agent is integrated into the matrix.
5. A galling-resistant threaded tubular component according to claim 1 , wherein a synthetic wax and/or an oil is integrated into the matrix.
6. A galling-resistant threaded tubular component according to claim 1 , wherein additives are integrated into the matrix to reinforce mechanical properties.
7. A galling-resistant threaded tubular component according to claim 1 , wherein an entire of the threaded zone is coated with the dry film.
8. A galling-resistant threaded tubular component according to claim 1 , further comprising a metal/metal sealing surface, the sealing surface being coated with the dry film.
9. A threaded tubular connection comprising:
a male threaded tubular component and a female threaded tubular component configured to be connected to each other, wherein at least one of the threaded tubular components is a tubular component according to claim 1 .