Our High Ductility (HD) grades help in the design of more compact wells that require smaller rigs, reducing environmental impact and drilling costs.
new technology for mature wells
Our High Ductility (HD) grades provide good performance when plastic deformation is expected – typical applications of these expandable pipes range from casing patching to monobore completions.
Tenaris has developed optimized carbon alloys for expandable applications in oil and gas operations. This technology allows operators to pursue mono-bore well designs, reducing the telescoping effect of traditional designs.
These grades also have the capability to bring mature wells back to life by isolating undesirable perforations, isolating and repairing casing links and providing increased recompletion options.
Our HD Series grades are available in minimum yield strengths ranging from 35 Ksi to 70 Ksi.
Specified Mechanical Properties
| Grade | Minimum Yield Strength (Ksi) | MaxIMUM Yield Strength (Ksi) | Tensile Strength (Ksi) | Elongation (Min %) | Maximum Hardness Reading
| YS/UTS max
|
|---|
| TN 35HD |
36 |
56 |
60 |
30 |
93 HRB |
0.80 |
| TN 45HD |
45 |
65 |
63 |
30 |
95 HRB |
0.85 |
| TN 60HD |
60 |
80 |
75 |
30 |
22 HRC |
0.90 |
| TN 70HD |
70 |
90 |
82 |
22 |
22 HRC |
0.90 |