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

    Mechanical Internal Cutter

    Mechanical Internal Cutter

     

    Mechanical Internal Cutter is a special tool, which cut pipe from the inner of pipe string for the down hole; it may cut at any position except coupling. In the process of drilling down pass, if found touch sticking in the middle, only need to uplift drilling tool once then may releasing, after that keeping land continue until the cutting position, During cutting operation, the releasing spear can be connected above internal cutter, after cutting, uplifting the top pipe string one time.









    Type

    Casing(tubing) O.D.
    inch

    Cutter O.D.
    mm

    Cut Wall
    mm

    Connection
    API

    ND-73

    2-7/8

    57

    5.5

    1.9TBG

    ND-89

    3-1/2

    67

    6.5

    1.9TBG

    ND-102

    4

    85

    5.7、6.7

    2-3/8TBG

    ND-114

    4-1/2

    89

    7.410.9

    2-3/8TBG

    ND-140

    5-1/2

    120

    7、7.7、9.2

    NC31

    ND-168

    6-5/8

    149

    7.3     8.9

    NC38

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