Gelled corrosion inhibition method
    63.
    发明授权
    Gelled corrosion inhibition method 失效
    凝胶腐蚀抑制法

    公开(公告)号:US5275760A

    公开(公告)日:1994-01-04

    申请号:US936750

    申请日:1992-08-27

    Inventor: John D. Johnson

    CPC classification number: F16L58/14 C23F11/00 Y10S166/902

    Abstract: A method of corrosion inhibition using a gelled inhibitor is disclosed. The method comprises consecutively introducing into an annular region of a jacketed pipeline a hydrogel slurried in an environmentally innocuous oil medium and a corrosion inhibitor dissolved in an aqueous medium. The liquid media are contacted to form a gelled corrosion inhibitor in the annulus. The method is particularly useful in buried pipelines where corrosion monitoring is difficult.

    Abstract translation: 公开了使用胶凝抑制剂的腐蚀抑制方法。 该方法包括连续地引入到带护套管道的环形区域中,该水凝胶在环境无害的油介质中溶解并在溶解在水介质中的腐蚀抑制剂。 液体介质接触以在环空中形成凝胶腐蚀抑制剂。 该方法在难以进行腐蚀监测的埋地管道中特别有用。

    Pipe section, especially for abrasive and/or corrosive material pipelines
    64.
    发明授权
    Pipe section, especially for abrasive and/or corrosive material pipelines 失效
    管段,特别适用于磨料和/或腐蚀性物料管道

    公开(公告)号:US5052445A

    公开(公告)日:1991-10-01

    申请号:US589089

    申请日:1990-09-27

    Applicant: Rutger Berchem

    Inventor: Rutger Berchem

    CPC classification number: F16L58/14 F16L57/06 Y10S138/06

    Abstract: A pipe section of an outer metallic pipe and a nonmetallic inner lining is provided so that the lining can be removed. To this end, the lining consists of lining segments, the terminal members of which are braced against the ends of the pipe in a form fitting manner and the successive lining segments can interfit with, for example, complementary frustoconical formations.

    Abstract translation: 提供外金属管和非金属内衬的管段,以便可以移除内衬。 为此,衬里由衬里段组成,其末端构件以形状配合方式支撑在管的端部,并且连续的衬层段可以与例如互补的截头圆锥形地层相配合。

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