Dual string hydraulically actuated oil well packer
    1.
    发明授权
    Dual string hydraulically actuated oil well packer 失效
    双液压液压油包装机

    公开(公告)号:US3858648A

    公开(公告)日:1975-01-07

    申请号:US41222173

    申请日:1973-11-02

    Applicant: DRESSER IND

    CPC classification number: E21B33/1295 E21B33/122

    Abstract: A simplified and efficient dual string hydraulically actuated packer assembly is disclosed which utilizes unitary tubular anchor means, compressible packer elements, and spring-loaded, shearable, ratcheting packer lock means.

    Abstract translation: 公开了一种简化和有效的双串液压致动封隔器组件,其采用单一管状锚固装置,可压缩封隔器元件和弹簧加载的可剪切棘轮封隔器锁定装置。

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