Tuff-Tube Heavy Weight Drill Pipe

RDT Tuff-Tube Heavy Weight Drill Pipe
For additional information on our Tuff-Tube HWDP offerings - please click here to download our brochure.
Tuff-Tube Heavy Weight Drill Pipe is a new generation design using micro alloyed steel far surpassing the industry standard for heavy weight design. Tuff-Tube was designed to better resist the wear and fatigue seen in highly deviated wells as well as aggressive directional planning. Tuff-Tube uses a proprietary micro alloyed tube and forged steel tool joints. As its predecessor, Tuff-Tube is available in standard or spiraled designs, making it flexible in a number of applications.

SPECIFICATIONS OVERVIEW:

  • Designed for aggressive well planning
    • Extended reach wells
    • Horizontal drilling
    • Cold environment
  • Reduced wear rate on OD
  • Extended service life over traditional HWDP
  • Cold rolled to increase resistance to fatigue cracking
  • Increased impact values (Charpy)
  • Higher weld impact values
  • Hardbanding Optional

 

Tuff-Tube Conventional Heavy Weight Drill Pipe

API TUFF NS-1
Yield 55K 70K 55K
Tensile 95K 100K 95K
HRC N/A 10 30
Tube Charpy (ft-lbs) N/A 25@-4°F 31@70°F
TJ Charpy (ft-lbs) N/A 31@-4°F 31@70°F
Weld Line Charpy (ft-lbs) N/A 15@-4°F 31@70°F

 

Tuff-Tube Spiral Heavy Weight Drill Pipe

Tube Tool Joint Weight (lb)  
  Nominal Tube
Dimensions
  Mechanical Properties
Tube
  Mechanical Properties
Tool Joint
Approx. Incl.
Tube & Joints
 
Nom.
Size
ID Wall
Thick-
ness
Area
(in.2)
Center
Upsets
End Upsets Tensile
Yield
(lb)
Torsion
Yield
(ft-lb)
Conn.
Size and Type
OD ID Tensile
Yield
(lb)
Torsion
Yield
(ft-lb)
Per Foot Per Joint
(31 ft)
Min Make-up
 Torque
(ft-lb)
                               
3-1/2 2-1/16 0.719 6.282 4 3-7/8 345,500 19,600 NC38 (3-1/2 IF) 4-7/8 2-1/8 842,400 22,900 26.81 831 11,500
3-1/2 2-1/4 0.625 5.645 4 3-7/8 310,500 18,500 NC38 (3-1/2 IF)
DS38
DT38
4-7/8
4-7/8
4-7/8
2-1/4 790,900 22.900
30,600
34,200
24.64 764 11,500
12,900
12,900
4 2-9/16 0.719 7.411 4-1/2 4-3/16 407,600 27,600 ND40 (4 FH) 5-1/4 2-9/16 838,300 27,800 30.71 952 13,900
4-1/2 2-3/4 0.875 9.965 5 4-11/16 548,100 40,700 NC46 (4 IF)
DS46
6-1/4
6-1/4
2-13/16
2-13/16
1,151,100
1,151,100
43,600
60,300
42.66 1,322 21,800
26,100
5 3 1.000 12.566 5-1/2 5-1/8 691,200 56,500 NC50 (4-1/2 IF)
DS50
DT50
6-5/8 3 1,416,200 57,800
82,900
88,800
51.64 1,601 28,900
34,600
34,900
5-1/2 3-1/4 1.125 15.463 6 5-11/16 850,400 75,900 5-1/2 FH
DS55
DT55
7-1/4 3-1/4 1,778,300 78,700
111,100
115,100
63.14 1,957 39,400
45,500
45,400
6-5/8 4-1/2 1.063 18.574 7-1/8 6-15/16 1,021,600 118,900 6-5/8 FH 8 4-1/2 1,896,100 87,900 72.91 2,260 43,900
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PO Box 73
9022 Vincik Ehlert
Beasley, TX 77417
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Tel: 979-387-3223
Fax: 979-387-3232

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