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Oil Tubing

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Tubing is a relatively small-diameter pipe that is run into a well to serve as a conduit for the passage of oil and gas to the field surface facilities for processing. Tubing must be adequately strong to resist loads and deformations associated with production and work overs. Further, tubing must be sized to support the expected rates of production of oil and gas.


API Spec 5CT – Specification 5CT/ISO 11960,GB/T 19830-2011 Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells

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Product Description

Tubing is a relatively small-diameter pipe that is run into a well to serve as a conduit for the passage of oil and gas to the field surface facilities for processing. Tubing must be adequately strong to resist loads and deformations associated with production and work overs. Further, tubing must be sized to support the expected rates of production of oil and gas.

API Spec 5CT – Specification 5CT/ISO 11960,GB/T 19830-2011 Specification for Casing and Tubing, Eighth Edition, Petroleum and natural gas industries-Steel pipes for use as casing or tubing for wells


Product

 Tubing Pipe, Oil Tubing, API Tubing Well Tubing, Tubing

Application

Used for extracing Oil or Gas from Wells

Pipe Standard

 API 5CT PSL1/PSL2 J55,K55,N80-1,N80-Q,

Size

OD: 48.26mm-114.3mm

WT: 3.18-16mm

Size Tolerance

OD<114.3mm, Tolerances: ±0.79mm

WT:-12.5%

Length

R1(4.88~7.62m);R2(7.62~10.36m);R3(10.36~14.63m)

Thread types

 NUE, EUE, VAM, STC, LTC, BTC, XC, VAM TOP, NEW VAM,HYDRILL CS

Special Service

Sweet Service, Sour Service, Anti-H2S, NACE MR0175/ISO15156

Accessories

 Pup Joint, Coupling, Drill Collar, Crossover


API 5CT Oil Tubing Dimension:

Label

OD (mm)

WT (mm)

Type of End-finish

Inch

NU T&C

EU T&C

IJ

H40

J55

L80

N80

C90

T95

P110

1.9

2.75

2.9

2.76

48.26

3.68

PNUI

PNUI

PNUI

PNUI

PNUI

PNUI

-

1.9

3.65

3.73

-

48.26

5.08

PU

PU

PU

PU

PU

PU

PU

1.9

4.42

-

-

48.26

6.35

-

-

P

-

P

P

-

2 3/8

4

-

-

60.32

4.24

PU

PN

PN

PN

PN

PN

-

2 3/8

4.6

4.7

-

60.32

4.83

PNU

PNU

PNU

PNU

PNU

PNU

PNU

2 3/8

5.8

5.95

-

60.32

6.45

-

-

PNU

PNU

PNU

PNU

PNU

2 3/8

6.6

-

-

60.32

7.49

-

-

P

-

P

P

-

2 3/8

7.35

7.45

-

60.32

8.53

-

-

PU

-

PU

PU

-

2 7/8

6.4

6.5

-

73.02

5.51

PNU

PNU

PNU

PNU

PNU

PNU

PNU

2 7/8

7.8

7.9

-

73.02

7.01

-

-

PNU

PNU

PNU

PNU

PNU

2 7/8

8.6

8.7

-

73.02

7.82

-

-

PNU

PNU

PNU

PNU

PNU

2 7/8

9.35

9.45

-

73.02

8.64

-

-

PU

-

PU

PU

-

2 7/8

10.5

-

-

73.02

9.96

-

-

P

-

P

P

-

3 1/2

7.7

-

-

88.9

5.49

PN

PN

PN

PN

PN

PN

-

3 1/2

9.2

9.3

-

88.9

6.45

PNU

PNU

PNU

PNU

PNU

PNU

PNU

3 1/2

10.2

-

-

88.9

7.34

PN

PN

PN

PN

PN

PN

-

3 1/2

12.7

12.95

-

88.9

9.52

-

-

PNU

PNU

PNU

PNU

PNU

3 1/2

14.3

-

-

88.9

10.92

-

-

P

-

P

P

-

3 1/2

15.5

-

-

88.9

12.09

-

-

P

-

P

P

-

4

9.5

-

-

101.6

5.74

PN

PN

PN

PN

PN

PN

-

4

10.7

11

-

101.6

6.65

PU

PU

PU

PU

PU

PU

-

4

13.2

-

-

101.6

8.38

-

-

P

-

P

P

-

4

16.1

-

-

101.6

10.54

-

-

P

-

P

P

-

4 1/2

12.6

12.75

-

114.3

6.88

PNU

PNU

PNU

PNU

PNU

PNU

-

4 1/2

15.2

-

-

114.3

8.56

-

-

P

-

P

P

-

P-Plain end; N-Non Upset;U-External upset;T&C-Threaded and coupled


Mechanical Properties:

Grade

Type

Total elongation under load (%)

Yield strength (min)

Yield strength (max)

Tensile strength min Mpa

Hardness Max (HRC)

Hardness Max (HBW)

J55

-

0.5

379

552

517

-

-

K55

-

0.5

379

552

655

-

-

N80

1

0.5

552

758

689

-

-

N80

Q

0.5

552

758

689

-

-

L80

1

0.5

552

655

655

23

241

L80

9Cr

0.5

552

655

655

23

241

L80

13Cr

0.5

552

655

655

23

241

C90

-

0.5

621

724

689

25.4

255

C95

-

0.5

655

758

724

-

-

T95

-

0.5

655

758

724

25.4

255

P110

-

0.6

758

965

862

-

-

Q125

All

0.65

862

1034

931

-

-

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