API Enhanced

A solution for Unconventional Wells
Unconventional wells are characterized for high burst pressures and flow rates resulting from the completions program, mixed with sour environments, and highly deviated well designs. These standardized well designs use batch drilling and cost-effective materials to help maintain total well cost. Since the early 2000’s, Vallourec has been developing a wide portfolio of cost-effective grades specially designed for unconventional wells.
Benefits
Benefits
Cost effective
Vallourec API Enhanced grades are specifically designed for unconventional wells enabling standardization and reduced string cost thanks to enhanced collapse and burst resistance
Extensive offer
Wide range of API Enhanced grades allowing increased pressure when flowing, higher torque limits when rotating and longer string lengths where needed. Adapted material for all H2S environments, from mild to severe sour service
Short lead-time
Our products can be offered with shorter lead-time thanks to our optimized production routes. Standard cycle times mean consistent deliveries every month for confidence of supply to keep programs running
Performance
Performance, application & Product Range

API Enhanced offer is based on:

  • Lean chemistry design and consistency over time. 
  • Strict manufacturing process. All aspects of the manufacturing process from melting to threading, are similarly controlled resulting in a more controlled product. 
  • Enhanced collapse properties: based on higher Specified Minimum Yield Strength (SMYS) or API 5C3 – Annex G approach thanks to physical collapse tests performed during production.
  • Joint lengths are consistently held on the very high end of API length tolerances creating efficiencies for operators. Less connections are required to be made up for each string saving valuable rig time. 

Product performance specially design to cope unconventional operational conditions and load cases!

Grades Higher axial loads & pressure limits Higher flowing pressure Higher torque levels Longer string lengths Sour service domain
VST55HC ✓ ✓ Severe sour
L80HCE ✓ ✓ ✓ Severe sour
T95E ✓ ✓ ✓ ✓ Severe sour
P110MS ✓ ✓ ✓ ✓ Mild sour
P110EC ✓ ✓ ✓ ✓ Non sour
Q125HCE ✓ ✓ ✓ ✓ Non sour
Grades
Grades
Non Sour Service Grades Sour Service Grades
Application Unconventional Unconventional
Low Strength API Enhanced VST55HC
L80HCE
T95E
High Strength API Enhanced P110RY
P110EC
Q125HCE		 P110MS
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Resources
Documents & Resources
Brochure
Advanced Support for Well Optimization Brochure
VAM® connections & OCTG grades
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Toolbox
Connection Data Sheet VAM® Book Mr Help
Vallourec e-learning: Well design & material selection
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OCTG Expertise Center
Every application has specific service requirements to withstand internal and external pressure, high torque, temperature and corrosion. Vallourec offers the full range of material grades and connections to meet your needs. Our Expertise Center is the priviledged place to exchange with our experts.
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