Heavy Weight Drill Pipe 3 1/2inch 26.10 Lb ft Connection NC-38
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Heavy Weight Drill Pipe 3 1/2inch  26.10 Lb  ft Connection NC-38
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Features
Basic Infomation
Place of Origin: CHINA
Brand Name: ROSCHEN
Certification: API
Model Number: 3 1/2inch
High Light:

Heavy Weight Drill Pipe

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Heavy Weight Drill Pipe 3 1/2inch

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Connection NC-38 Heavy Weight Drill Pipe

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

 

 

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

 

 

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.

 

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.

 

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.

 

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 3 1/2inch  26.10 Lb  ft Connection NC-38 0

 

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.

 

Custom-engineered products

 

In addition to a complete line of drill stem products and accessories, we design, engineer, qualify, and produce fit-for-purpose solutions for specialized or unusually demanding drilling, completion, and intervention operations. With our portfolio of projects developed in partnership with operators, we are the premier provider of customized drilling solutions.

 

 

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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