API 5CT insulation tubing
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 | basic parameter | main performance parameter | working parameter | 外管 外径 mm | inner diameter mm | external diameter of coupling mm | coupling thread | apparent coefficient of heat conductivity (inner thickness at 350℃) W/m·℃ | tension load at normal temperature kN | resistance of intemal pressure MPa | resistance of external pressure MPa | flatness % | well depth m | temperature ℃ | fixed casing in(mm) | Normal Working Time | Excessive Heat (3～4h) | Normal temperature | Steam injection | Normal temperature | Steam injection | 114.3 | 62.0 | 127 | 4-1/2BCSG | 0～0.08 | 506 | 32 | 20 | 26 | 24 | ≤0.2 | ≤1500 | 350 | 380 | 7(177.8) | |
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| | basic parameter | main performance parameter | working parameter | 外管 外径 mm | inner diameter mm | external diameter of coupling mm | coupling thread | apparent coefficient of heat conductivity (inner thickness at 350℃) W/m·℃ | tension load at normal temperature kN | resistance of intemal pressure MPa | resistance of external pressure MPa | flatness % | well depth m | temperature ℃ | fixed casing in(mm) | Normal Working Time | Excessive Heat (3～4h) | Normal temperature | Steam injection | Normal temperature | Steam injection | 114.3 | 76.0 | 127 | 4-1/2BCSG | 0～0.08 | 537 | 32 | 20 | 26 | 24 | ≤0.2 | ≤1500 | 350 | 380 | 7(177.8) | |
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| | basic parameter | main performance parameter | working parameter | 外管 外径 mm | inner diameter mm | external diameter of coupling mm | coupling thread | apparent coefficient of heat conductivity (inner thickness at 350℃) W/m·℃ | tension load at normal temperature kN | resistance of intemal pressure MPa | resistance of external pressure MPa | flatness % | well depth m | temperature ℃ | fixed casing in(mm) | Normal Working Time | Excessive Heat (3～4h) | Normal temperature | Steam injection | Normal temperature | Steam injection | 127 | 76.0 | 141.3 | 5BCSG | 0.02～0.08 | 615 | 32 | 20 | 23 | 21 | ≤0.2 | ≤1500 | 350 | 380 | 9-5/8(244.5) | |
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| | basic parameter | main performance parameter | working parameter | 外管 外径 mm | inner diameter mm | external diameter of coupling mm | coupling thread | apparent coefficient of heat conductivity (inner thickness at 350℃) W/m·℃ | tension load at normal temperature kN | resistance of intemal pressure MPa | resistance of external pressure MPa | flatness % | well depth m | temperature ℃ | fixed casing in(mm) | Normal working Time | Excessive Heat (3 ～4h) | Normal temperature | Steam injection | Normal temperature | Steam injection | 88.9 | 40.9 | 108 | 3-1/2USS | 0.02～0.08 | 402 | 32 | 20 | 30 | 28 | ≤0.2 | ≤1500 | 350 | 380 | 5(139.7) | |
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| | basic parameter | main performance parameter | working parameter | 外管 外径 mm | inner diameter mm | external diameter of coupling mm | coupling thread | apparent coefficient of heat conductivity (inner thickness at 350℃) W/m·℃ | tension load at normal temperature kN | resistance of intemal pressure MPa | resistance of external pressure MPa | flatness % | well depth m | temperature ℃ | fixed casing in(mm) | Normal Working Time | Excessive Heat (3～4h) | Normal temperature | Steam injection | Normal temperature | Steam injection | 88.9 | 50.6 | 108 | 3-1/2USS | 0.02～0.08 | 432 | 32 | 20 | 30 | 28 | ≤0.2 | ≤1500 | 350 | 380 | 5(139.7) | |
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