Heavy Weight Drill Pipe 4 1/2” 41.8 Lb ft NC-46 Connection
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Heavy Weight Drill Pipe 4 1/2” 41.8 Lb  ft NC-46 Connection
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Features
Basic Infomation
Place of Origin: CHINA
Brand Name: ROSCHEN
Certification: API
Model Number: 4 1/2inch
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Heavy Weight Drill Pipe

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Heavy Weight Drill Pipe 4 1/2”

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NC-46 Connection Heavy Weight Drill Pipe

Payment & Shipping Terms
Packaging Details: Bundle or Wooden Box
Supply Ability: 10000sets/M
Specifications
Product Description

 

Heavy Weight Drill Pipe 4 1/2inch 41.8 Lb ft NC-46 Connection

 

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.

 

A Heavy Weight Drill Pipe (HWDP) looks like a normal drill pipe except for an upset centered along the tube which helps to prevent excessive buckling.

 

Its wall thickness is up to 3 times that of a similar-sized normal drill pipe to add additional weight to the bit.

 

HWDP is used most commonly in directional drilling because it bends more easily and helps to control torque and fatigue in high-angle operations.

 

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.

 

Heavy Weight Drill Pipe 4 1/2” 41.8 Lb  ft NC-46 Connection 0

 

HWDP Specifications

 

Conventional Heavy Weight Drill Pipes come in two configurations, Welded and Integral.

 

The welded configuration is manufactured by friction welding of extra-long tool joints to a thick well tube while the integral configuration is machined from a solid bar of AISI4145H alloy steel.

 

An additional option is the Heavyweight Spiral Drill Pipe, which has spiral grooves cut into the external surface for reduced differential sticking and improved hole-cleaning.

 

Products are manufactured to API Spec.7/ 7-1 where applicable and can come customized with additional features and proprietary connections of leading manufacturers per your requirements.

 

Contact us to discuss your requirements.

 

 

For more information please contact:

 

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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Tel : 13764195009
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