Oil-well metal pipe, and method for producing oil-well metal pipe
AssigneesNippon Steel Corporation, Vallourec Oil and Gas France
InventorsTomoka Abe, Ken Tomiyasu, Keishi Matsumoto, Mamoru Ochiai
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Abstract
An oil-well metal pipe according to the present disclosure has a pipe main body including a first end portion and a second end portion. The pipe main body includes a pin formed at the first end portion, and a box formed at the second end portion. The pin includes a pin contact surface including an external thread part, and the box includes a box contact surface including an internal thread part. The oil-well metal pipe according to the present disclosure also includes a resin coating containing a resin, a solid lubricant powder, and copper phthalocyanine on or above at least one of the pin contact surface and the box contact surface.
Claims13
An oil-well metal pipe, comprising:
- a pipe main body including a first end portion and a second end portion;
- wherein:
- the pipe main body includes:
- a pin formed at the first end portion, and
- a box formed at the second end portion;
- the pin includes:
- a pin contact surface including an external thread part;
- the box includes:
- a box contact surface including an internal thread part;
- the oil-well metal pipe further comprising:
- a resin coating containing a resin, a solid lubricant powder and copper phthalocyanine on or above at least one of the pin contact surface and the box contact surface.
Dependencies are inferred from the claim text.