General design
Materials
Sour Service Steels
Ultra High Strength Steels
API Connections
VAM EIS®
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VAM CDS™
Make and Break
Product Data Tables
 SOUR SERVICE STEELS
H2S Resistance and Reliability
   

The evolution of drilling programs has driven the industry to develop more suitable solutions for extreme conditions such as Sour Service environment. Because minimal concentrations of H2S result in partial pressures are considered hostile for steel grades and hazardous for human beings, adapted drill pipe are necessary.

The renowned V&M Sour Service proprietary grades are the results of years of Research and Development to achieve material evolution optimization and critical manufacturing parameters control.

Matching industry standards define in the NACE MR 0175-2004, VAM Drilling current offer is split into 3 levels of resistance to Sour Service environment. The level SS is fully compliant with the IRP 1.8 requirements.

  More information on VM-105 DP MS Info More information on VM-95 DP SS Info
  More information on VM-95 DP S Info More information on VM-105 DP SS Info
  More information on VM-105 DP S Info  


Technical Name
Pipe part
YS(4)
UTS(5)
Material Type
SSC(6) Threshold
NACE
Specification
 Min-Max
Min
Tests
Reference
Ksi
Ksi
% SMYS(7)
 
 
VM-105 DP MS(1)
pipe body
105-120
115
H2S
-
No
VAM Drilling specification and fully compliant with API
tool joint
120-
140
API
-
No
 
 
 
 
 
 
 
 
VM-95 DP S(2)
pipe body
95-110
105
H2S
70
Yes
VAM Drilling specification
tool joint
105-120
115
H2S
50
Yes
VM-105 DP S(2)
pipe body
105-120
115
H2S
70
Yes
tool joint
105-120
115
H2S
50
Yes
 
 
 
 
 
 
 
 
VM-95 DP SS(3)
pipe body
95-110
105
H2S
85
Yes
VAM Drilling specification and fully compliant
with IRP 1.8
tool joint
110-125
125
H2S
65
Yes
VM-105 DP SS(3)
pipe body
105-120
115
H2S
85
Yes
tool joint
110-125
125
H2S
65
Yes
 
 
 
 
 
 
 
 
(1) MS: Mild Sour  
 
 
 
 
 
 
(2) S: Sour
 
 
 
 
 
 
(3) SS: Sour Service
 
 
 
 
 
 
(4) YS: Yield Strenght
 
 
 
 
 
 
(5) UTS: Ultimate Strength
 
 
 
 
 
 
(6) SSC: Sulfide Stress Cracking 
 
 
 
 
 
(7) SMYS: Specified Minimum Yield Strength
 
 
 
 



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