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    Drill Collars

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    Product Description

    Main Technical Parameters

    Drill Collar Thread

     

    OD

    ID

    Length

     
     
     

    mm

    in

    mm

    in

    mm

     

    NC31-41(27/8IF)

    104.8

    4 1/8

    50.8

    2

    9150

     

    NC35-47

    120.7

    4 3/4

    50.8

    2

    9150

     

    NC38-50(31/2IF)

    127

    5

    57.2

    2 1/4

    9150

     

    NC44-60

    152.4

    6

    57.2

    2 1/4

    9150or9450

     

    NC44-60

    152.4

    6

    71.4

    2 13/16

    9150or9450

     

    NC44-62

    158.8

    6 1/4

    57.2

    2 1/4

    9150or9450

     

    NC46-62(4IF)

    158.8

    6 1/4

    71.4

    2 13/16

    9150or9450

     

    NC46-65(4IF)

    165.1

    6 1/2

    57.2

    2 1/4

    9150or9450

     

    NC46-65(4IF)

    165.1

    6 1/2

    71.4

    2 13/16

    9150or9450

     

    NC46-67(4IF)

    171.4

    6 3/4

    57.2

    2 1/4

    9150or9450

     

    NC50-67(41/2IF)

    171.4

    6 3/4

    71.4

    2 13/16

    9150or9450

     

    NC50-70(41/2IF)

    177.8

    7

    57.2

    2 1/4

    9150or9450

     

    NC50-70(41/2IF)

    177.8

    7

    71.4

    2 13/16

    9150or9450

     

    NC50-72(41/2IF)

    184.2

    7 1/4

    71.4

    2 13/16

    9150or9450

     

    NC56-77

    196.8

    7 1/4

    71.4

    2 13/16

    9150or9450

     

    NC56-80

    203.2

    8

    71.4

    2 13/16

    9150or9450

     

    65/xREG

    209.6

    8 1/4

    71.4

    2 13/16

    9150or9450

     

    NC61-90

    228.6

    9

    71.4

    2 13/16

    9150or9450

     

    Features:

    ●.We can supply Non-magnetic drill collar, Spiral drill collar, and Slick drill collar as per customers’ requirements.

    ●Designed and manufactured strictly according to API Spec 7-1.

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