Vallourec Oil and Gas France

Nippon Steel Corporation

Arnaud Verleene

Nicolas Baudin

Cedric Vogt

Adil Jaafar

Jose Antonio Aguilar Mendez

David Ontiveros Carmona

Cédric Vogt

José Antonio Aguilar MÉNDEZ

A threaded tubular connection for drilling or operating hydrocarbon wells contains a portion of a tubular element with a male end having an axis of revolution and provided with a first threading extending about the axis of revolution, the male end portion being complementary with a portion of a tubular element with a female end having an axis of revolution and provided with a second threading extending about the axis of revolution, the male and female end portions being capable of being connected by makeup, each of the male and female end portions further comprising a sealing surface with a metal-metal interference, wherein the threading and the sealing surfaces of the male and female end portions are coated with a metallic anti-corrosion and anti-galling layer wherein zinc (Zn) is the major element by weight. One of the metallic anti-corrosion and anti-galling layers is coated with a passivation layer and the other is at least partially coated with a lubricant layer.

Threaded tubular connection provided with a metallic coating on the threading and on the sealing surface

A protector for a male end or a female end of a tubular drilling or production component for hydrocarbon wells, the end respectively including at least one external thread or internal thread, an annular external surface and an annular internal surface separated by the at least one thread, the protector including a first internal or external thread including at least one first threaded portion including at least one thread with pitch Pconfigured to cooperate with the thread of the end to screw the protector onto the end, and a second threaded portion including at least one thread with a pitch Pdifferent from P

Tubular component connection protector

The invention concerns a threaded portion of a tubular element for a threaded tubular connection having an axis of revolution, the portion comprising a threading extending over its outer or inner peripheral surface, and a first sealing surface on the peripheral surface, the first sealing surface being capable of producing metal-metal interference with a corresponding second sealing surface belonging to a complementary threaded portion. The threading and the first sealing surface are coated with a metallic anti-galling layer wherein zinc (Zn) is the major element by weight, the metallic anti-galling layer being at least partially coated with a lubricant layer comprising a resin and a dry solid lubricant powder dispersed in the resin.

Threaded tubular element provided with a metallic anti-galling coating and a lubricant layer

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Saint Saulve, France

Arnaud Verleene