Heavy Duty DTH Drill Pipe For Hard Rock Drilling Equipment Alloy Steel Material

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2022年05月08日

3.5 inch HDD drill pipe used for Horizontal water well

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Heavy Duty DTH Drill Pipe For Hard Rock Drilling Equipment Alloy Steel Material




Drill pipe is made from the welding of at least three separate pieces: box tool joint, pin tool joint, and the tube. The ends of the tubes are then upset to increase the cross-sectional area of the ends. The tube end may be externally upset (EU), internally upset (IU), or internally and externally upset (IEU). Standard max upset dimensions are specified in API 5DP, but the exact dimensions of the upset are proprietary to the manufacturer. After upsetting, the tube then goes through a heat treating process. Drill pipe steel is commonly quenched and tempered to achieve high yield strengths 



Drill pipe is a kind of steel tubes with threaded tail, mainly  used to connect the surface equipment of drilling rig and drilling and grinding equipment or bottom hole device at the bottom of drilling. The purpose of the drill pipe is to transport drilling mud to the bit and to raise, lower or rotate the bottom hole device together with the bit. The drill pipe must be able to withstand large internal and external pressure, twist, bending and vibration. In the process of oil and gas extraction, drill pipe can be used many times. Drill pipe is can bo divided into three types: Kelly, drill pipe and weighted drill pipe. 



Our Drill Pipe Manufacturing capability ranges from 2 3/8" to 6 5/8" in grades E75, X95, G105, G105 with CY, S135 in length range 1, Range 2, & Range 3. Heavy Weight Drill Pipes up to 5-1/2”. 


Drill Pipes with Special Grade & specs like Sour Service & NS1 are available against individual order. With inhouse Hardband & Internal Plastic Coating facility (IPC) : we offer drill pipes with Hardband & IPC.



Material:Alloy Steel
Connection Thread:API Reg, IF Reg, Beco
Keywords:DTH Drilling Rod
High Light:dth drill tube
dth drill rods
Color:Black Or Optional
Applications:Water Well Drilling, Mining, Etc






Drill Pipes Specifications
Outer DiameterThreadWall thicknessLength
mminchmmmm
602 3/8FEDP (Failing connection)
Mayhew Junior
Mayhew Regular

2 3/8" API REG
2 7/8" API REG
3 1/2" API REG
4 1/2" API REG
6 5/8" API REG

2 3/8" API IF
2 7/8" API IF
3 1/2" API IF
4 1/2" API IF

3 1/2" BECO
4 1/2" BECO
5 1/4" BECO
6" BECO
8" BECO
10" BECO
12" BECO
4~61000-6000
7634~61000-6000
893 1/25~91000-9600
10246~94000-9600
1144 1/26~93000-12600
12758~153000-12600
1335 1/48~153000-12600
1405 1/28~153000-12600
15268~153000-12600
1686 5/89.53000-12600
12.5
19
17879.63000-12600
12.5
19
2007 7/89.63000-12600
12.5
19
20389.63000-12600
12.5
19
Roschen Drill Pipe make by Friction Welding.
Any special specification of Drill Pipe is available by request.







For more information, pls contact us.



Phiger Leo

Direct Line: 0086-137-6419 5009

WeChat: +86-137-6419 5009 


WhatsApp: +86-137-6419 5009      

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ROSCHEN@ INC.                                 

ROSCHEN@ GROUP LIMITED

ROBERT ROSCHEN@ LIMITED

ROSCHEN@ HOLDINGS LIMITED    

HEFEI ROSCHEN@ TOOL CO., LTD.

ROSCHEN@ GEOLOGICAL TOOL CO.,LTD.

SHANGHAI ROSCHEN@ INTERNATIONAL CO., LTD.

ROSCHEN@ GEOLOGICAL INSTRUMENTS CO., LTD.  

EMAIL: roschen@roschen.com ; roschen@roschen.net

Website: http://www.roschendrill.com

http://www.roschenmining.com

http://www.roschendrilling.com  

http://www.explorationcoredrilling.com   

http://www.roschen.net 

http://www.roschen.cn

http://www.roschen.com 

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