Threaded component for seizure-resistant tubular threaded joint
AssigneesVallourec Mannesmann Oil & Gas France, Condat S.A.
InventorDaniel Petelot
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AssigneesVallourec Mannesmann Oil & Gas France, Condat S.A.
InventorDaniel Petelot
Estimating the term…
The invention concerns a threaded component for a seizure-resistant tubular threaded joint wherein a lubricating substance is deposited in a thin film on at least the surface of the threads of the threading, said surface being treated to adsorb said lubricating substance. The lubricating substance consists of a homogeneous mixture of a) a thickening agent; b) a set of extreme-pressure additives physically and chemically compatible with the thickening agent and comprising at least an extreme-pressure additive with chemical action called chemical EP additive and capable of being used at Hertz pressures not less than 1000 Mpa's; c) an oil. The proportions of the constituents of the lubricating substance are selected such that said lubricating substance has a consistency capable of ensuring a self-induced and film-forming lubricating process. The invention also concerns a method for producing the thin film.
A male or female threaded element for a threaded tubular connection, comprising:
A method for preparing a threaded tubular connection between a male threading and a female threading, the method comprising the steps of
Dependencies are inferred from the claim text.