| abstract |
The abrasion resistant threaded tubular element for drilling or operating hydrocarbon wells contains at one of its ends (1, 2) a threaded region (3, 4) obtained on its outer or inner peripheral surface depending on whether the threaded end is male or covering type, at least one part of the threaded region (3, 4) is covered with a dry film with a crystalline structure with a high specific surface area, mainly formed from one or more mineral lei that are not reactive with metals. A method for coating such an element using a dry mineral film with a crystalline structure having a high specific surface area, mainly formed from one or more mineral salts that are not reactive with metals, is also considered. |