- Patent Title: Oil-well metal pipe, and method for producing oil-well metal pipe
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Application No.: US18041829Application Date: 2021-08-16
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Publication No.: US12104085B2Publication Date: 2024-10-01
- Inventor: Tomoka Abe , Ken Tomiyasu , Keishi Matsumoto , Mamoru Ochiai
- Applicant: NIPPON STEEL CORPORATION , VALLOUREC OIL AND GAS FRANCE
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION,VALLOUREC OIL AND GAS FRANCE
- Current Assignee: NIPPON STEEL CORPORATION,VALLOUREC OIL AND GAS FRANCE
- Current Assignee Address: JP Tokyo; FR Aulnoye-Aymeries
- Agency: Greer, Burns & Crain, Ltd.
- Priority: JP 20139430 2020.08.20
- International Application: PCT/JP2021/029935 2021.08.16
- International Announcement: WO2022/039131A 2022.02.24
- Date entered country: 2023-02-16
- Main IPC: C09D7/63
- IPC: C09D7/63 ; C10M103/04 ; C10M107/28 ; C10M107/30 ; C10M107/38 ; C10M139/00 ; C10N10/04 ; C10N30/12 ; C10N40/02 ; F16L15/04

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.
Public/Granted literature
- US20230312946A1 OIL-WELL METAL PIPE, AND METHOD FOR PRODUCING OIL-WELL METAL PIPE Public/Granted day:2023-10-05
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