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  1. Unionlever (Group) Petroleum Equipment Co.,Ltd.

    Internal Hooks

     




    Internal hook
    is used for casings or tubing to catch a variety of ropes and other fisher such as wire lines, cables of well logging, steel pieces, paraffin cutters etc. Internal hooks are available in two types: adjustable internal hook and fixed internal hook.

     

    During use process, the internal hook inserted into ropes or other falling objects, when pick up the drill stem, the falling objects was hooked by hook tooth then taken to the ground.


    Type

    Max. O.D.
    (mm/inch)

    Joint Conn.
    API

    Go down casing/tubing

    WG73

    732-7/8

    2 3/8UP TBG

    3 1/2tubing

    WG95

    95(3-3/4)

    NC26

    4 1/2tubing

    WG114

    114(4-1/2)

    NC31

    5 1/2tubing

    WG150

    150(5-29/32)

    NC38

    7tubing

    WG190

    190(7-15/32)

    NC38

    9 5/8tubing

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