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Casing

Casing

CasingAmerican Petroleum Institute Standard (API SPEC 5CT)Product description● StandardAmerican Petr...

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Product Detail
Product Parameter


Casing

American Petroleum Institute Standard (API SPEC 5CT)

Product description

● Standard

American Petroleum Institute Standard (API SPEC 5CT)

● Uses

Tubing is used to extract oil or gas from oil wells

Casing is used in the well wall of oil and gas wells

● Deviation

Allowable deviation of outer diameter, wall thickness and weight

Item

 

Tolerances

Outside Diameter

Pipe Body

D ≤ 101.6mm ± 0.79mm

D ≥ 114.3mm
(-0.5 %D~+1.0%D)

Coupling

± 1%D

Wall Thickness

－ 12.5%

Weight

Single Lengths

+6.5%~－3.5%

 Carload Lots≥18144kg

－ 1.75%
－ 3.5%

● Size

Size of Casing

Size
Desination

Weight
Desination

Outside Diameter

Wall Thickness

Type of End Finish

Grade

in

mm

in

mm

J55
K55

M65

L80
C95

N80-1
N80Q

C90T95

P110

4 1/2

9.50

4.500

114.3

0.205

5.21

PS

PS

-

-

-

-

10.50

0.224

5.69

PSB

PSB

-

-

-

-

11.60

0.250

6.35

PSLB

PLB

PLB

PLB

PLB

PLB

13.50

0.290

7.37

-

PLB

PLB

PLB

PLB

PLB

15.10

0.337

8.56

-

-

-

-

-

PLB

5

11.50

5.00

127.00

0.220

5.59

PS

PS

-

-

-

-

13.00

0.253

6.43

PSLB

PSLB

-

-

-

-

15.00

0.296

7.52

PSLB

PLB

PLB

PLB

PLB

PLB

18.00

0.362

9.19

-

PLB

PLB

PLB

PLB

PLB

21.40.

0.437

11.10

-

PLB

PLB

PLB

PLB

PLB

23.20

0.478

12.14

-

-

 PLB

 PLB

 PLB

PLB 

24.10

0.500

12.70

-

-

 PLB

 PLB

 PLB

 PLB

5 1/2

14.00

5.500

139.7

0.244

6.20

PS

PS

-

-

-

-

15.50

0.275

6.98

PSLB

PSLB

-

-

-

-

17.00

0.304

7.72

PSLB

PLB

PLB

PLB

PLB

PLB

20.00

0.361

9.17

-

PLB

PLB

PLB

PLB

PLB

23.00

0.415

10.54

-

PLB

PLB

PLB

PLB

PLB

6 5/8

20.00

6.625

168.28

0.288

7.32

PSLB

PSLB

-

-

-

-

24.00

0.352

8.94

PSLB

PLB

PLB

PLB

PLB

PLB

 

Size
Desination

Weight
Desination

Outside Diameter

Wall Thickness

Type of End Finish

Grade

in

mm

in

mm

J55
K55

M65

L80
C95

N80-1
N80Q

C90T95

P110

6 5/8

28.00

6.625

168.28

0.417

10.59

-

PLB

PLB

PLB

PLB

PLB

32.00

0.475

12.06

-

-

PLB

PLB

PLB

PLB

7

17.00

7.00

177.80

0.231

5.87

-

-

-

-

-

-

20.00

0.272

6.91

PS

PS

-

-

-

-

23.00

0.317

8.05

PSLB

PLB

PLB

PLB

PLB

-

26.00

0.362

9.19

PSLB

PLB

PLB

PLB

PLB

PLB

29.00

0.408

10.36

-

PLB

PLB

PLB

PLB

PLB

32.00

0.453

11.51

-

PLB

PLB

PLB

PLB

PLB

35.00

0.498

12.65

-

-

PLB

PLB

PLB

PLB

38.00

0.540

13.72

-

-

PLB

PLB

PLB

PLB

7 5/8

24.00

7.625

193.68

0.300

7.62

-

-

-

-

-

-

26.40

0.328

8.33

PSLB

PSLB

PLB

PLB

PLB

PLB

29.70

0.375

9.52

-

PLB

PLB

PLB

PLB

PLB

33.70

0.430

10.92

-

PLB

PLB

PLB

PLB

PLB

39.00

0.500

12.70

-

-

PLB

PLB

PLB

PLB

42.80

0.562

14.27

-

-

PLB

PLB

PLB

PLB

45.30

0.595

15.11

-

-

PLB

PLB

PLB

PLB

47.10

0.625

15.88

-

-

PLB

PLB

PLB

PLB

8 5/8

24.00

8.625

219.08

0.264

6.71

PS

PS

-

-

-

-

28.00

0.304

7.72

-

PS

-

-

-

-

32.00

0.352

8.94

PSLB

PSLB

-

-

-

-

36.00

0.400

10.16

PSLB

PSLB

PLB

PLB

PLB

PLB

40.00

0.450

11.43

-

PLB

PLB

PLB

PLB

PLB

44.00

0.500

12.70

-

-

PLB

PLB

PLB

PLB

49.00

0.557

14.15

-

-

PLB

PLB

PLB

PLB

9 5/8

32.30

9.625

244.48

0.312

7.92

-

-

-

-

-

-

36.00

0.352

8.94

PSLB

PSLB

-

-

-

-

40.00

0.395

10.03

PSLB

PSLB

PLB

PLB

PLB

-

43.50

0.435

11.05

-

PLB

PLB

PLB

PLB

PLB

47.00

0.472

11.99

-

PLB

PLB

PLB

PLB

PLB

53.50

0.545

13.84

-

-

PLB

PLB

PLB

PLB

58.40

0.595

15.11

-

-

PLB

PLB

PLB

PLB

10 3/4

32.75

10.75

273.05

0.279

7.09

-

-

-

-

-

-

40.50

0.350

8.89

PSB

PSB

-

-

-

-

15.50

0.400

10.16

PSB

PSB

-

-

-

-

51.00

0.450

11.43

PSB

PSB

PSB

PSB

PSB

PSB

55.50

0.495

12.57

-

PSB

PSB

PSB

PSB

PSB

 

Size
Desination

Weight
Desination

Outside Diameter

Wall Thickness

Type of End Finish

Grade

in

mm

in

mm

J55
K55

M65

L80
C95

N801Q

C90T95

P110

10 3/4

60.70

10.75

273.05

0.545

13.84

-

-

-

-

PSB

PSB

65.70

0.595

15.11

-

-

-

-

PSB

PSB

11 3/4

42.00

11.75

298.45

0.333

8.46

-

-

-

-

-

-

47.00

0.375

9.53

PSB

PSB

-

-

-

-

54.00

0.435

11.05

PSB

PSB

-

-

-

-

60.00

0.489

12.42

PSB

PSB

PSB

PSB

PSB

PSB

13 3/8

48.00

13.375

339.73

0.330

8.38

-

-

-

-

-

-

54.50

0.380

9.65

PSB

PSB

-

-

-

-

61.00

0.430

10.92

PSB

PSB

-

-

-

-

68.00

0.480

12.19

PSB

PSB

PSB

PSB

PSB

PSB

72.00

0.514

13.06

-

-

PSB

PSB

PSB

PSB

Note: P-plain end S-short round thread L-Long round thread B-Buttress thread

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