Vacuum Insulated Tubing

Vacuum Insulated Tubing (VIT) can reduce steam heat loss, maintain steam quality, decrease casing deformation, and protect cemented casing. VIT is suitable for the following operating conditions with the heat carrier temperature below 380°C:

  • SAGD (Steam Assisted Gravity Drainage)
  • CSS (Cyclic Steam Stimulation)
  • Steam Flooding
  • Offshore oil production
  • Wells susceptible to paraffin deposits
  • Wells in environmentally sensitive areas

Exceed (Canada) provides a variety of VIT tubes with different thermo-insulation performance grades to meet your needs. By substantially saving energy consumption, reducing water consumption and shortening the steaming cycle, field testing has indicated the steaming cycle can be reduced from 3-5 months to as little as 75 days.

For details on all of Exceed’s VIT, please contact your local Exceed representative. Contact us now.

Exceed VIT Features

  • An enclosed-welded double-wall structure
  • A pre-stressed inner tube fitted into an outer tube
  • A multi-layer insulated liner structure reduces heat transfer and energy loss by convection and radiation
  • The getter installed in the annulus absorbs all active gasses
  • Multi-stage bakeout process incorporated with continuous thorough vacuuming
  • An external insulating sleeve (inside connection), and an internal insulating donut (outer connection), reduces heat loss at the connection.

Download PDF: Vacuum Insulated Tubing

VIT Heat Insulating Property
Exceed VIT Insulation Grade
RateABCDE
Thermal Conductivity
Coefficient λ
W/(m·K)
0.06 - 0.080.04 - 0.060.02 - 0.040.006 - 0.020.002 - 0.006
K Value
BTU/h·ft·˚F
0.0346758 ~ 0.04623440.0231172 ~ 0.03467580.0115586 ~ 0.02311720.00346758 ~ 0.01155860.00115586 ~ 0.00346758

Exceed VIT heat insulation grades are D and E categories.

Exceed Key VIT Products
Max. Operating Temperature
SizesGradeConnection TypeInsulatorsThermal ConductivityNormalSupercritical
3½" x 2 ⅜"J55, L80, N80QIntegral with flush OD or external/internal coupled connectionInternal or ExternalD & E350° C380° C
4½" x 2 ⅞"J55, L80, N80QIntegral with flush OD or external/internal coupled connectionInternal or ExternalD & E350° C380° C
4½" x 3½"J55, L80, N80QIntegral with flush OD or external/internal coupled connectionInternal or ExternalD & E350° C380° C
5" x 3½"J55, L80, N80QIntegral with flush OD or external/internal coupled connectionInternal or ExternalD & E350° C380° C
5½" x 4½"J55, L80, N80QIntegral with flush OD or external/internal coupled connectionInternal or ExternalD & E350° C380° C
7" x 5½"J55, L80, N80QIntegral with flush OD or external/internal coupled connectionInternal or ExternalD & E350° C380° C

Custom design combinations of grades and sizes are available. Range 3 joints are available. We are also able to provide buttress or semi premium and premium connections. Supercritical VIT is also available for max. operating temperature of 380 °C. 

Exceed (Canada) Oilfield Equipment Inc Suite 1905, 500 – 4th Ave SW Calgary AB T2P 2V6

T: 587-356-1888

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