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Krypton Gas Backfilled Insulated Tubulars with Intermediate
Insulating Capacity for High Temperature Applications up to 400° F
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General Information
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A Wide Size Range
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| Range II Standard |
2-3/8" x 1.66"
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4-1/2" x 2-7/8"
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| API, 5CT Tubulars and Couplings |
2-7/8" x 1.9"
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4-1/2" x 3-1/2"
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| Casing or USS Buttress Threads |
3-1/2" x 2-3/8"
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5" x 2-7/8"
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| Modified Buttress Couplings |
4-1/2" x 2-3/8"
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5" x 3-1/2"
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| Premium Connections Available |
5-1/2" x 4-1/2"
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Typical Specifications
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| Physical Data |
2.375 x 1.66
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2.875 x 1.90
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3.50 x 2.375
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4.50 x 2.875
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4.50 x 3.50
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5.00 x 3.50
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| Total Weight (#/ft) |
7.1
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9.5
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13.8
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18.0
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20.4
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27.0
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Outer Casing
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J-55 Grade Standard
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| --O.D. (in.) |
2.375
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2.875
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3.50
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4.50
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4.50
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5.00
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| --Wall Thickness (in.) |
0.190
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0.217
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0.254
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0.250
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0.250
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0.362
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| --I.D. (in.) |
1.995
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2.441
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2.992
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4.00
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4.00
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4.276
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| --Weight (#/ft.) |
4.6
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6.5
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9.2
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11.6
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11.6
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18.00
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Inner Tubular
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J-55 Grade Standard
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| --O.D. (in.) |
1.66
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1.90
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2.375
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2.875
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3.50
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3.50
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| --Wall Thickness (in.) |
0.140
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0.145
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0.190
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0.217
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0.254
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0.254
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| --I.D. (in.) |
1.380
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1.61
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1.995
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2.441
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2.992
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2.992
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| --Weight (#/ft.) |
2.3
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2.72
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4.43
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6.16
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8.81
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8.81
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Operational Data
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Nominal Conductivity
BTU/HR-FT-°F at 450° F
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Typical Application
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| Body |
0.015 - 0.020 |
Operating Temperature |
450° F
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| Coupling with Insulator |
0.150 - 0.250 |
Operating Pressure (Wellhead) |
1200 psi
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| Full Joint (Range II) |
0.030 - 0.040 |
Operating Pressure (Downhole) |
2500 psi
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Start-Up Pressure |
3000 psi
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Other Sizes and Configurations are Available
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| Thermal Tube 3-H |
Maximum insulating capacity at high temperatures up to 670° F |
| Thermal Tube 3 |
Maximum insulating capacity at temperatures below 400° F |
| Thermal Tube 2 |
Intermediate insulating capacity at temperatures below 400° F |
| Thermal Tube 1-H |
Moderate insulating capacity at high temperatures up to 670° F |
| Thermal Tube 1 |
Moderate insulating capacity at temperatures below 400° F |
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