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    Packer and packer setting apparatus
    4.
    发明授权
    Packer and packer setting apparatus 失效
    包装机和包装机设定装置

    公开(公告)号：US3554279A

    公开(公告)日：1971-01-12

    申请号：US3554279D

    申请日：1969-08-04

    Applicant: DRESSER IND

    Inventor： MERIPOL ROBERT B ,  PUMPELLY ROBERT C

    IPC: E21B23/06 ,  E21B33/126

    CPC classification number: E21B33/1265 ,  E21B23/06

    Abstract: A packer and packer setting apparatus including a packing element arranged to be deformed into sealing engagement with a well casing, a packing cup encircling the packer and sealingly engaging the casing, an annular packer deforming member engaging the upper end of the packing element, and a frangible connection member releasably connecting the packing cup to the packer deforming member whereby fluid pressure in the annulus can be utilized to apply a setting force on the packer. At least one recess extends longitudinally along the exterior of the packer deforming member and is initially located below the packing cup. The connection member is arranged to part upon the application of a predetermined hydraulic pressure on the packing cup whereby the cup is driven downwardly permitting flow through the recess to prevent the cup from ''''swabbing'''' as the packer is pulled from the well.

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