seamless pipes
API-5CT Casing
Date:【2019-06-27 18:33】 Read:【】Times

 API-5CT Casing

 

 

 

Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or wellbore.

It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from

collapsing and to allow drilling fluid to circulate and extraction to take place. 

 

Standard API SPEC 5CT、ISO 11960-2004、GB/T 19830-2011.Grade: J55, K55, N80-1, N80-Q,L80-1,L80-

9Cr, L80-13Cr,P110; Thread type:STC, LTC,BTC; 

 

API:casing

 Specification

Steel class

Standard 

OD mm(in)

thickness mm

Nominal weight(with thread and coupling)kg/m

H40

J55K55

M65

L80C95

N80-1类、Q

C90T95

P110

Q125

 

114.30
(4-1/2)

5.21

14.14

P/S

P/S

P/S

 

 

 

 

 

API 5CT-2008

5.69

15.63

 

P/S/B

P/S/B

 

 

 

 

 

6.35

17.26

 

P/S/L/B

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

 

7.37

20.09

 

 

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

 

8.56

22.47

 

 

 

 

 

 

P/L/B

P/L/B

127.00(5)

5.59

17.11

 

P/S

P/S

 

 

 

 

 

6.43

19.35

 

P/S/L/B

P/S/L/B

 

 

 

 

 

7.52

22.32

 

P/S/L/B/E

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

9.19

26.79

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

11.10

31.85

 

 

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

12.14

34.53

 

 

 

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

12.70

35.86

 

 

 

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

139.70
(5-1/2)

6.20

20.83

P/S

P/S

P/S

 

 

 

 

 

6.98

23.07

 

P/S/L/B/E

P/S/L/B

 

 

 

 

 

7.72

25.30

 

P/S/L/B/E

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

9.17

29.76

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

10.54

34.23

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

12.70

39.88

 

 

 

 

 

P

 

 

14.27

44.20

 

 

 

 

 

P

 

 

15.88

48.51

 

 

 

 

 

P

 

 

17.45

52.53

 

 

 

 

 

P

 

 

19.05

56.55

 

 

 

 

 

P

 

 

20.62

60.27

 

 

 

 

 

P

 

 

22.22

61.14

 

 

 

 

 

P

 

 

168.28
(6-5/8)

7.32

29.76

P/S

P/S/L/B

P/S/L/B

 

 

 

 

 

8.94

35.72

 

P/S/L/B/E

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

10.59

41.67

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

12.06

47.62

 

 

 

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

177.80(7)

5.87

25.30

P/S

 

 

 

 

 

 

 

6.91

29.76

P/S

P/S

P/S

 

 

 

 

 

8.05

34.23

 

P/S/L/B/E

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

 

 

9.19

38.69

 

P/S/L/B/E

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

10.36

43.16

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

11.51

47.62

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

12.65

52.09

 

 

 

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

13.72

56.55

 

 

 

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

15.88

63.54

 

 

 

 

 

P

 

 

17.45

69.05

 

 

 

 

 

P

 

 

19.05

74.56

 

 

 

 

 

P

 

 

20.62

79.77

 

 

 

 

 

P

 

 

22.22

84.97

 

 

 

 

 

P

 

 

193.68
(7-5/8)

7.62

35.72

P/S

 

 

 

 

 

 

 

8.33

39.29

 

P/S/L/B/E

P/S/L/B

P/L/B/E

P/L/B/E

P/L/B/E

 

 

9.52

44.20

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

10.92

50.15

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

12.70

58.04

 

 

 

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

14.27

63.69

 

 

 

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

15.11

67.41

 

 

 

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

15.88

70.09

 

 

 

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

17.45

76.19

 

 

 

 

 

P

 

 

19.05

82.30

 

 

 

 

 

P

 

 

196.85
(7-3/4)

15.11

68.60

 

 

 

P

P

P

P

P

219.08
(8-5/8)

6.71

35.72

 

P/S

P/S

 

 

 

 

 

7.72

41.67

P/S

 

P/S

 

 

 

 

 

8.94

47.62

P/S

P/S/L/B/E

P/S/L/B

 

 

 

 

 

10.16

53.57

 

P/S/L/B/E

P/S/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

11.43

59.53

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

12.70

65.48

 

 

 

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

14.15

72.92

 

 

 

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

244.48
(9-5/8)

7.92

48.07

P/S

 

 

 

 

 

 

 

8.94

53.57

P/S

P/S/L/B

P/S/L/B

 

 

 

 

 

10.03

59.53

 

P/S/L/B/E

P/S/L/B

P/L/B/E

P/L/B/E

P/L/B/E

 

 

11.05

64.73

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

 

11.99

69.94

 

 

P/L/B

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

13.84

79.62

 

 

 

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

P/L/B/E

15.11

86.91

 

 

 

P/L/B

P/L/B

P/L/B

P/L/B

P/L/B

15.47

88.40

 

 

 

 

 

P

 

 

17.07

96.58

 

 

 

 

 

P

 

 

18.64

104.62

 

 

 

 

 

P

 

 

20.24

112.50

 

 

 

 

 

P

 

 

273.05
(10-3/4)

7.09

48.74

P/S

 

 

 

 

 

 

 

8.89

60.27

P/S

P/S/B

P/S/B

 

 

 

 

 

10.16

67.71

 

P/S/B/E

P/S/B

 

 

 

 

 

11.43

75.90

 

P/S/B/E

P/S/B

P/S/B/E

P/S/B/E

P/S/B/E

P/S/B/E

 

12.57

82.59

 

 

P/S/B

P/S/B/E

P/S/B/E

P/S/B/E

P/S/B/E

 

13.84

90.33

 

 

 

 

 

P/S/B/E

P/S/B/E

P/S/B/E

15.11

97.77

 

 

 

 

 

P/S/B

P/S/B

P/S/B

17.07

108.93

 

 

 

 

 

P

 

 

18.64

117.86