Encapsulation provides a protective layer to keep the lines from being scratched, dented, and possibly crushed while running in hole.
Encapsulation of several components (Flat Pack) provides a consolidation that will help reduce equipment and personnel that is needed to deploy multiple single components. In many cases, a flat pack is mandatory as rig space can be limited.
Features, Advantages and Benefits:
● Control lines are delivered in orbital-weld-free lengths up to 40,000 ft (12,192 m) to maximize reliability.
● A wide range of single, dual, or triple flat-packs is available. Flat-packs can be combined with downhole electrical cables and/or bumper wires for easier operation and handling during deployment.
● Welded-and-plug-drawn production method ensures a smooth, round tube to allow long-term metal sealing of terminations.
● Encapsulation materials are selected to suit well conditions, ensuring longevity and reliability.
Alloy |
O.D. |
W.T. |
Yield Strength |
Tensile Strength |
Elongation |
Hardness |
Working Pressure |
Burst Pressure |
Collapse Pressure |
inch |
inch |
MPa |
MPa |
% |
HV |
psi |
psi |
psi |
|
|
|
min. |
min. |
min. |
max. |
min. |
min. |
min. |
|
SS316L |
0.250 |
0.035 |
172 |
483 |
35 |
190 |
5,939 |
26,699 |
7,223 |
SS316L |
0.250 |
0.049 |
172 |
483 |
35 |
190 |
8,572 |
38,533 |
9,416 |
SS316L |
0.250 |
0.065 |
172 |
483 |
35 |
190 |
11,694 |
52,544 |
11,522 |
ASTM A269 / ASME SA269, 316L, UNS S31603 | ||
Size OD | Tolerance OD | Tolerance WT |
≤1/2’’ (≤12.7 mm) | ±0.005’’ (±0.13 mm) | ±15% |
1/2’’<OD≤1’’ (12.7<OD≤25.4 mm) | ±0.005’’ (±0.13 mm) | ±10% |
Meilong Standard | ||
Size OD | Tolerance OD | Tolerance WT |
≤1/2’’ (≤12.7 mm) | ±0.004’’ (±0.10 mm) | ±10% |
1/2’’<OD≤1’’ (12.7<OD≤25.4 mm) | ±0.004’’ (±0.10 mm) | ±8% |