OIL-WELL METAL PIPE
    1.
    发明公开
    OIL-WELL METAL PIPE 审中-公开

    公开(公告)号:US20240352806A1

    公开(公告)日:2024-10-24

    申请号:US18683558

    申请日:2022-08-26

    摘要: An oil-well metal pipe according to the present disclosure includes: a pipe main body that includes a pin which includes a pin contact surface including an external thread part and which is formed at a first end portion, and a box which includes a box contact surface including an internal thread part and which is formed at a second end portion; and a Zn—Ni alloy plating layer which is formed on at least one of the pin contact surface and the box contact surface. The X-ray diffraction intensities of the Zn—Ni alloy plating layer satisfy Formula (1).









    I
    18

    /

    (


    I
    18

    +

    I
    36

    +

    I
    54


    )



    0.6




    (
    1
    )







    Here, in Formula (1), in units of cps, an X-ray diffraction intensity of {411} and {330} is substituted for I18, an X-ray diffraction intensity of {442} and {600} is substituted for I36, and an X-ray diffraction intensity of {552} is substituted for I54.