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Heavy Weight Drill Pipe 3 1/2inch

Heavy weight drill pipe is well-suited for directional drilling applications. Because it bends easily, heavy weight drill pipe simplifies directional control and minimizes connection fatigue problems that are common in high-angle or horizontal drilling.
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  • HWDP 3 1/2"
  • ROSCHEN
  • ROS-HWDP-3 1/2

Product Description


Heavy Weight Drill Pipe 3 1/2”, 26.10 Lb  ft, Connection NC-38


HWDP is used as a transitional stiffness section, typically between the stiff and rigid drill collars and the relatively light and flexible drill pipe joints to reduce fatigue failures directly above the bottom hole assembly.

 

Standard HWDP was developed to provide a gradual transition from heavy drill collars to relatively lightweight drill pipe.

 

This intermediate-weight pipe has a wall thickness of approximately 1 in. and helps prevent stress concentration at the top of the drill collar section. Heavy weight drill pipe also enables drilling at higher RPMs, reducing torque and differential pressure sticking.


Heavy weight drill pipe is well-suited for directional drilling applications. Because it bends easily, heavy weight drill pipe simplifies directional control and minimizes connection fatigue problems that are common in high-angle or horizontal drilling.

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

2-9/16

4-3/16

4-1/2

NC 40 (4FH)

5-1/4

2-9/16

4

2-1/2

4-3/16

4-1/2

NC 40 (4 FH)

5-1/4

2-1/2

4-1/2

2-3/4

4-11/16

5

NC 46 (4 IF)

6-1/4

2-3/4

4-1/2

2-11/16

4-11/16

5

NC 46 (4 IF)

6-1/4

2-11/16

4-1/2

2-13/16

4-11/16

5

NC 46 (4 IF)

6-1/4

2-13/16

5

3

5-1/8

5-1/2

NC 50 (4-1/2 IF)

6-5/8

3

5-1/2

3-1/4

5-11/16

6

5-1/2 FH

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

3-1/4

5-1/2

3-3/8

5-11/16

6

5-1/2 FH

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

3-3/8

5-1/2

3-7/8

5-11/16

6

5-1/2 FH

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

3-7/8

5-1/2

4

5-11/16

6

5-1/2 FH

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

4

6-5/8

4

6-15/16

7-1/8

6-5/8 FH

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

4

6-5/8

4-1/2

6-15/16

7-1/8

6-5/8 FH

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

4-1/2

6-5/8

5

6-15/16

7-1/8

6-5/8 FH

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

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.

For extended reach and horizontal wells, high-strength heavy weight drill pipe is often used high in the hole to apply weight on the bit. This is especially true for wells in which the total vertical depth to total measured depth ratio is low.

high-strength heavy weight drill pipe

Connection technologies

 

As the leader in the development of rotary-shouldered connections, our products are engineered to optimize drill pipe performance. With four generations of double-shouldered connections, we have developed technologies to meet the demands of any drilling challenge.

 

Grade technologies

 

ROSCHEN’s purposefully engineered drill pipe material grades provide increased product performance and integrity. Our high-strength grades help you drill safer and deeper with reduced hook loads and improved hydraulics. Our sour service grades deliver outstanding performance while resisting sulfide stress cracking (SSC), helping you drill safely and efficiently in harsh, sour conditions.

 

For more information please contact:

ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED

Skype: ROSCHEN.TOOL , ROSCHEN_GROUP

WeChat: +86-137 6419 5009 ; +86-135 8585 5390

WhatsApp: +86-137 6419 5009 ; +86-135 8585 5390

Email: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschen.com ; http://www.roschen.net




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