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Tubing and Casing Coupling

Couplings are short lengths of pipe used to connect 2 joints of tubing or casing. They come with painted colour codes on their external surface to indicate their grades.

Standards and Technical Conditions for Supply:API Spec 5CT and 5B
Size:1.9” --20
Grade:J55,K55,N80-1,N80Q,L80-1,C90,C95,T95,P110,Q125

Tread types: NUE, EUE, VAM, STC, LTC, BTC, special clearance, XC,VAM TOP,NEW VAM.

Packing: by carton, wooden case, wooden pallet or customized


Tubing and casing are key portions of OCTG. Tubing is a distinct pipe, installed in production casing after well cementing to allow the oil and gases flow to the ground. Casings are those pipes supporting the wall of oil and gas well. It is mainly divided in 3 major categories- the surface, protection and production casing.


Size and Specifications For Tubing and Casing Couplings:

Descriptions 

and size

Type of Therad

O.D*L

Weight

Descriptions

 and size

Type of Therad

O.D*L

Weight

(mm)

(kg)

(mm)

(kg)

Casing Coupling

Tubing Coupling

4-1/2"

LTC

127.00*177.80

4.15

1.05

EUE

42.16*82.55

0.38

4-1/2"

BTC

127.00*225.42

4.55

1.315

NUE

42.16*82.55

0.38

5"

STC

141.30*165.10

4.66

1.315

EUE

48.26*88.90

0.57

5"

LTC

141.30*196.85

5.75

1.66

NUE

52.17*88.90

0.59

5"

BTC

141.30*231.78

5.85

1.66

EUE

58.88*95.25

0.68

5-1/2"

STC

153.67*171.45

5.23

1.9

NUE

55.88*95.25

0.56

5-1/2"

LTC

153.67*203.20

6.42

1.9

EUE

63.50*98.42

0.84

5-1/2"

BTC

153.67*234.95

6.36

2-3/8"

NUE

73.02*107.95

1.28

6-5/8"

STC

187.71*184.15

9.12

2-3/8"

EUE

77.80*132.82

1.55

6-5/8"

LTC

187.71*222.25

11.34

2-7/8"

NUE

88.90*130.18

2.34

6-5/8"

BTC

187.71*244.48

11.01

2-7/8"

EUE

93.17*133.35

2.4

7"

STC

194.46*184.15

8.39

3-1/2"

NUE

107.95*142.88

3.71

7"

LTC

194.46*228.60

10.83

3-1/2"

EUE

114.30*146.05

4.1

7"

BTC

194.46*254.00

10.54

4"

NUE

120.65*146.05

4.35

7-5/8"

STC

215.90*190.50

12.3

4"

EUE

127.00*152.40

4.82

7-5/8"

LTC

215.90*234.95

15.63

4-1/2"

NUE

132.08*155.58

4.89

7-5/8"

BTC

215.90*263.52

15.82

4-1/2"

EUE

141.30*158.75

6.05

8-5/8"

STC

244.48*196.85

16.23

8-5/8"

LTC

244.48*254.00

21.67

8-5/8"

BTC

244.48*269.88

20.86

9-5/8"

STC

269.88*196.85

18.03

9-5/8"

LTC

269.88*266.70

25.45

9-5/8"

BTC

269.88*269.88

23.16

10-3/4"

STC

298.45*203.20

20.78

10-3/4"

BTC

298.45*269.88

25.74

11-3/4'

STC

323.85*203.20

22.64

11-3/4'

BTC

323.85*269.88

28.03

13-3/8"

STC

365.12*203.20

25.66

13-3/8"

BTC

365.12*269.88

31.77

16"

STC

431.80*228.6

34.91

16"

BTC

431.80*269.88

40.28

18-5/8"

STC

508.00*228.60

51.01

18-5/8"

BTC

508.00*269.88

62.68

20"

STC

533.40*228.6

43.42

20"

LTC

533.4*292.10

57.04

20"

BTC

533.40*269.88

50.1




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