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    Heavy Weight Drill Pipe

    Product:

     Heavy Weight Drill Pipe (HWDP)

    Application: 

     Used for connect 2 joints of tubing or casing

    Size:

    Outer Diameter: 2 7/8” – 6 5/8”


    Lengths: Range 2 and Range 3

    Pipe Standard: 

     API 5CT and 5B PSL1/PSL2  J55,K55,N80-1,N80-Q,


     API 5CT and 5B L80-1,C90, C95,T95, P110, Q125

    End Finishes:

    Internal Upset, External Upset, Plain End Upset, Non Upset

    Tool Joint type:

     NC38NC46NC505-1/2 FH


    Heavy weight drill pipe (HWDP) is usually run in between the drill collars and the drill pipe in order to prevent fatigue of the drill pipe in the vertical drilling industry. Heavy weight drill pipe is also utilized in the horizontal directional drilling (HDD) industry for added strength in high stress situations. Heavy weight drill pipe (HWDP) may be used to make the transition between the drill collars and drill pipe. The function of the HWDP is to provide a flexible transition between the drill collars and the drill pipe.

     

    Introduction:

    Heavy weight drill pipe has a center upset, also known as wear pad, that increases tube life by protecting the tube from wearing on the outer diameter by keeping the tube away from the hole wall. It also reduces hole drag and differential sticking problems. The walls of heavy weight drill pipe are thicker and have longer upsets compared to conventional drill pipe, as well as being stronger with high tensile strength.

     

    Application:

    Heavy weight drill pipe (HWDP) is usually run in between the drill collars and the drill pipe in order to prevent fatigue of the drill pipe in the vertical drilling industry. Heavy weight drill pipe is also utilized in the horizontal directional drilling (HDD) industry for added strength in high stress situations. Heavy weight drill pipe (HWDP) may be used to make the transition between the drill collars and drill pipe. The function of the HWDP is to provide a flexible transition between the drill collars and the drill pipe.

     

    Quality Standard: API 7 and API 5DP

     

    Steel Grade:

    Integral HWDP : AISI 4145HM

    Welded HWDP : AISI 1340 pipe body, AISI 4140HM tool joint

     

    Feature:

    A. High precision in size and shape

    B. Good low temperature toughness

    C. Excellent comprehensive mechanical properties

    D. High connection strength and sealability

    E. Large inside diameter of tool joint

    F. High torque resistance

    G. High fatigue strength and long fatigue life

     

    Internal Coating Feature:

    A.High abrasion resistance and low friction factor

    B. Good adhesion and flexility

    C. High application temperature and pressure

    D. High hardness and impact resistance

    E. Good corrosion resistance


    Nominal Size (Tube OD)

    Tube

    Tool Joint (in)


    ID (in)

    Elevator Upset

    Center Upset

    Connection Type & Size

    OD (in)

    ID (in)

    2-7/8

    1-1/2

    2-15/16

    3-5/16

    NC 26 (2-3/8 IF)

    3-3/8

    1-1/2

    3-1/2

    2-1/16

    3-7/8

    4

    NC 38 (3-1/2 IF)

    4-3/4 (4-7/8,5)

    2-1/16

    3-1/2

    2-1/4

    3-7/8

    4

    NC 38 (3-1/2 IF)

    4-3/4 (4-7/8,5)

    2-1/4

    4
    4

    2-9/16
    2-1/2

    4-3/16
    4-3/16

    4-1/2
    4-1/2

    NC 40 (4FH)
    NC 40 (4 FH)

    5-1/4
    5-1/4

    2-9/16
    2-1/2

    4-1/2
    4-1/2
    4-1/2

    2-3/4
    2-11/16
    2-13/16

    4-11/16
    4-11/16
    4-11/16

    5
    5
    5

    NC 46 (4 IF)
    NC 46 (4 IF)
    NC 46 (4 IF)

    6-1/4
    6-1/4
    6-1/4

    2-3/4
    2-11/16
    2-13/16

    5

    3

    5-1/8

    5-1/2

    NC 50 (4-1/2 IF)

    6-5/8

    3

    5-1/2
    5-1/2
    5-1/2
    5-1/2

    3-1/4
    3-3/8
    3-7/8
    4

    5-11/16
    5-11/16
    5-11/16
    5-11/16

    6
    6
    6
    6

    5-1/2 FH
    5-1/2 FH
    5-1/2 FH
    5-1/2 FH

    7 (7-1/4,7-1/2)
    7 (7-1/4,7-1/2)
    7 (7-1/4,7-1/2)
    7 (7-1/4,7-1/2)

    3-1/4
    3-3/8
    3-7/8
    4

    6-5/8
    6-5/8
    6-5/8

    4
    4-1/2
    5

    6-15/16
    6-15/16
    6-15/16

    7-1/8
    7-1/8
    7-1/8

    6-5/8 FH
    6-5/8 FH
    6-5/8 FH

    8 (8-1/4,8-1/2)
    8 (8-1/4,8-1/2)
    8 (8-1/4,8-1/2)

    4
    4-1/2
    5

    Standard Features

    API Bore Back Box Connection

    API Stress Relief Grooved Pin

    Cold Rolled Thread Roots

    Phosphate coated connections

    Options

    Internal Plastic Coating

    Hardband Type especially on box and pin tool joint

    Proprietary Connections

    Make and Break Test

    Protection

    Pressed steel thread protectors

    Mill Test Certificates

    Issued in accordance with API Spec 7/7-1 and API RP7G .

     

    Third Party Inspection can be performed on request at buyer’s care and expense.


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