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DRILL COLLAR

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  • Payment Terms:L/C, T/T
  • Place of Origin:China
  • Brand Name:TIANHE

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Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd

  • China
  • Busineess Type:Manufacturer
  • Main Products:Drill collar, Bowen fishing tools, Hydraulic&Mechanical drilling jar, Heavy weight drill pipe
  • Product Info
  • Contact Info

Product Details:

  • Application:Oil Pipe

  • Certification:API

Specifications:

  • Drill Collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially drill collar can keep drill bit centralized and hole track by large rigidity. TIANHE brand drill collars are manufactured strictly from API Spec7-1 and SY5411 standard.

    Description:

    Features and Benefits

    A hardness range of 285 to 341 BHN and a Charpy impact value of 40 ft-lbs are guaranteed at evenly distributed 16 points in any sections at room temperature;

    Connections are completed(phosphate coated)to protect them from the elements after machining and to help prevent galling upon initial make-up;

    Thread roots are cold rolled on API and H-90 connections;

    Pressed steel thread protectors are supplied for all drill collar that are equipped with standard connections

     

    When ordering Please specify;

    Drill collar OD and ID;

    Overall length;

    Connections required (size and type);

    Special features desired, for example:

       Slick or Spiral;

       Stress Relief Features;

       Slip and/or Elevator Recess;

       Hardbanding;

     

    Specifications - Drill collar

    Number and connection table

    Outside Diameter

    Inside Diameter

    Length
    mm

    Bevel
    Diameter
    mm

    Bending
    Strength
    Ratio

    mm

    in

    mm

    in

    NC23-31

    79.4

    3 1/8

    31.8

    1 1/2

    9150

    76.2

    2.57:1

    NC26-35(2 3/8 IF)

    88.9

    3 1/2

    38.1

    1 1/2

    9150

    82.9

    2.42:1

    NC31-41(2 7/8 IF)

    104.8

    4 1/8

    50.8

    2

    9150

    100.4

    2.43:1

    NC35-47

    120.6

    4 3/4

    50.8

    2

    9150

    114.7

    2.58:1

    NC38-50(31/2IF)

    127

    5

    57.2

    2 1/4

    9150

    121

    2.38:1

    NC44-60

    152.4

    6

    57.2

    2 1/4

    9150 or 9450

    144.5

    2.49:1

    NC44-60

    152.4

    6

    71.4

    2 13/16

    9150 or 9450

    144.5

    2.84:1

    NC44-62

    158.8

    6 1/4

    57.2

    2 1/4

    9150 or 9450

    149.2

    2.91:1

    NC44-62(4IF)

    158.8

    6 1/2

    71.4

    2 13/16

    9150 or 9450

    150

    2.63:1

    NC44-65(4IF)

    165.1

    6 1/2

    57.2

    2 1/4

    9150 or 9450

    154.8

    2.76:1

    NC44-65(4IF)

    165.1

    6 1/2

    71.4

    2 13/16

    9150 or 9450

    154.8

    3.05:1

    NC44-67(4IF)

    171.4

    6 3/4

    57.2

    2 1/4

    9150 or 9450

    159.5

    3.18:1

    NC50-67(41/2IF)

    171.4

    6 3/4

    71.4

    2 13/16

    9150 or 9450

    159.5

    2.37:1

    NC50-70(41/2IF)

    177.8

    7

    57.2

    2 1/4

    9150 or 9450

    164.7

    2.54:1

    NC50-70(41/2IF)

    177.8

    7

    71.4

    2 13/16

    9150 or 9450

    164.7

    2.73:1

    NC50-72(41/2IF)

    184.2

    7 1/4

    71.4

    2 13/16

    9150 or 9450

    169.5

    3.12:1

    NC56-77

    196.8

    7 3/4

    71.4

    2 13/16

    9150 or 9450

    185.3

    2.70:1

    NC56-80

    203.2

    8

    71.4

    2 13/16

    9150 or 9450

    190.1

    3.02:1

    6 5/8 REG

    209.6

    8 1/4

    71.4

    2 13/16

    9150 or 9450

    195.7

    2.93:1

    NC61-90

    228.6

    9

    71.4

    2 13/16

    9150 or 9450

    212.7

    3.17:1

    7 5/8 REG

    241.3

    9 1/2

    76.2

    3

    9150 or 9450

    223.8

    2.81:1

    NC70-97

    247.6

    9 3/4

    76.2

    3

    9150 or 9450

    232.6

    2.57:1

    NC70-100

    254

    10

    76.2

    3

    9150 or 9450

    237.3

    2.81:1

    8 5/8 REG

    279.4

    11

    76.2

    3

    9150 or 9450

    266.7

    2.84:1

    Slips and elevator grooves can be produced upon the customers' requirement.


Contact Person:

Contact Supplier
Telephone:86-0453-5979993
Mobile Phone:15846788639
Fax:86-0453-5979992
Street:No.43 West Diming Street
Country/Region:China
Province/State:heilongjiang
City:Mudanjiang

Company details:

  • Company Name: Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd
  • Oprational Address: No.43 West Diming Street, Mudanjiang , heilongjiang, china
  • Company Phone: 86-0453-5979993
  • Company Fax: 86-0453-5979992

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