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无磁钻铤

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    无磁钻铤

    无磁钻铤是使用一种低碳高锰合金钢制成,它是经过严格的化学成分配比后精炼并通过锻造而达到其机械性能。具有良好的低磁导率、高强度的机械性能。

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    无磁钻铤技术参数

    Non-magnetic Drill Collar

    Thread

    OD (inch)

    ID (inch)

    Length (mm)

    Bevel OD (mm)

    Bend & Strength Rate

    NC23-31

    3-1/8"

    1-1/4"

    9150

    76.2

    2.57:1

    NC26-35

    3-1/2"

    1-1/2"

    9150

    82.9

    2.42:1

    NC31-41

    4-1/8"

    2"

    9150

    100.4

    2.43:1

    NC35-47

    4-3/4"

    2"

    9150

    114.7

    2.58:1

    NC38-50

    5"

    2-1/4"

    9150

    121

    2.38:1

    NC44-60

    6"

    2-1/4"

    9150/9450

    144.5

    2.49:1

    NC44-60

    6"

    2-13/16"

    9150/9450

    144.5

    2.84:1

    NC44-62

    6-1/4"

    2-1/4"

    9150/9450

    149.2

    2.91:1

    NC44-62

    6-1/4"

    2-13/16"

    9150/9450

    150

    2.63:1

    NC44-65

    6-1/4"

    2-1/4"

    9150/9450

    154.8

    2.76:1

    NC44-65

    6-1/2"

    2-13/16"

    9150/9450

    154.8

    3.05:1

    NC44-67

    6-3/4"

    2-1/4"

    9150/9450

    159.5

    3.18:1

    NC50-67

    6-3/4"

    2-13/16"

    9150/9450

    159.5

    2.37:1

    NC50-70

    7"

    2-1/4"

    9150/9450

    164.7

    2.54:1

    NC50-70

    7"

    2-13/16"

    9150/9450

    164.7

    2.73:1

    NC50-72

    7-1/4"

    2-13/16"

    9150/9450

    169.5

    3.12:1

    NC56-77

    7-3/4"

    2-13/16"

    9150/9450

    185.3

    2.70:1

    NC56-80

    8"

    2-13/16"

    9150/9450

    190.1

    3.02:1

    6-5/8"REG

    8-1/4"

    2-13/16"

    9150/9450

    195.7

    2.93:1

    NC61-90

    9"

    2-13/16"

    9150/9450

    212.7

    3.171:1

    7-5/8"REG

    9-1/2"

    3"

    9150/9450

    223.8

    2.81:1

    NC70-97

    9-3/4"

    3"

    9150/9450

    232.6

    2.57:1

    NC70-100

    10"

    3"

    9150/9450

    237.3

    2.81:1

    8-5/8"REG

    11"

    3"

    9150/9450

    266.7

    2.84:1