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
Vallourec e-learning: Well design & material selection
Interested in learning more about well design and material selection? Fill in this form to access the e-learning session. By filling in this form, you are sharing your information with Vallourec and acknowledge that you have read and agreed to the Data Privacy Policy.
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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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