Solid lubricant for Zn-Ni coating on a threaded tubular element

Abstract

A tubular threaded element for the drilling, the operation of hydrocarbon wells, the transport of oil and gas, the transport or the storage of hydrogen, the carbon capture or the geothermal energy, including a metal body and at least one threaded end including at least one threaded portion, the threaded end including a multilayer coating on at least one portion of the surface of the threaded end wherein the multilayer coating includes a first layer including a solid coating including Zinc-Nickel electrodeposited on the at least one portion of the surface of the threaded end, a second oxalation-type conversion layer above the first layer, a third layer including a polyurethane or epoxy matrix loaded with solid lubricant particles above the second layer.

Dependencies are inferred from the claim text.