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 HIGH STRENGTH MATERIAL
High Grade Material for Lighter and Stronger solutions
   

Complex drilling environments, including ultra-deep and extended reach wells, deep offshore or high-temperature and high-pressure conditions, are a real challenge for drilling contractors and operators. For the most challenging drilling projects, VAM Drilling has developed high-strength grades including VM-140 DP, VM-150 DP and VM-165 DP.

High-strength grades are ideal for the lighter drill pipes required to minimize torque and drag in ultra-extended reach wells. Reducing wall thickness also improves hydraulic programs, making it easier to reach drilling targets efficiently. When stronger tubulars are needed for ultra-deep or landing string applications, high-grade materials offer additional tensile capacity as compared to API grades.  

  VAM Drilling high-grade materials are characterized by:
  • Superior proprietary chemistry;
  • Precise manufacturing processes from steel making to heat treatment;
  • Improved tensile and torsional strengths;
  • Improved fracture toughness and hardness; and
  • Lighter pipe bodies.
More information on high-strength material Info 


High grades drill pipe mechanical properties
Grade
YS
Min-Max
UTS
Min
Pipe Body Min average Charpy
Impact Energy @ - 4°F
(10x7.5mm² 3/4 size)
(ksi)
(ksi)
VM-140 DP
140/160
150
43 ft-lbs (60J)
VM-150 DP
150/170
160
43 ft-lbs (60J)
VM-165 DP
165/185
175
43 ft-lbs (60J)

V-165 DP vs. S-135 performances imporvement
(Example of a 5" OD and 19.50 lbs/ft drill pipe)
5" nominal OD
19.50 lbs/ft
API S-135
VM-165 DP
Improvement (%)
Torsional strength (ft-lbs)
74,100
90,600
22%
Tensile strength (lbs)
712,000
870,000
22%
Collapse pressure (psi)
15,700
17,900
14%
Internal pressure (psi)
17,100
20,900
22%



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