Vacuum Insulated Tubing (VIT)
Vacuum insulated tubing systems (VIT) consists of two concentric, tubing strings. The air between the tubulars is removed, creating a vacuum layer that is difficult for heat to move across. Therefore, vacuum insulated tubing greatly reduces the amount of heat that a well loses to its surroundings above the bitumen-bearing zone.
Vacuum insulated tubing systems (VIT) offered substantially improves thermal performance by having conductivity values in the range of 0.0018-0.0023 Btu/Hr-Ft-°F (0.003-0.004w/mK).
Vacuum insulated tubing systems (VIT) greatly reduces the amount of heat that a well loses to its surroundings above the bitumen-bearing zone. By reducing heat loss, less natural gas is burned to heat water to make steam.
This reduces greenhouse gas emissions.
Features & Benefits
- Proprietary vacuum seal technology
- Options for conventional versus integral joints
- Unique coupler design to mitigate heat loss
- Thermal conductivity almost 100 times less than regular/bare pipe Inner tube pre-stressed for consistent thermal expansion
- Inspections include X-ray, thermal conductivity & TC testing
- 4th generation VIT since 1985