Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

 
 

API 5CT oilfield drill pipe (OCTG oil casing drill pipe API


TIANHE provides a complete line of drill string products, including a full range of jointed drill pipe in nominal sizes from 2-3/8” to 6-5/8” and in a wide range of wall thicknesses. TIANHE drill pipe with a strict quality control regimen from initial materials selection to final inspection, we ensure that each joint of drill pipe meets your needs for durability and performance.

 Drill Pipe

Size

Weight 
Designation

Plain-End Weight 
Wpe

Outside Diameter 
D

Wall thickness 
T

Grade

Upset Ends,for 
weld-on tool joints

 
 
 

lb/ft

kg/m

in        mm

in.      mm

 

2 3/8

6.65

6.27

9.33

2.375

60.3

0.28

7.11

E, X, G, S

Ext.Upset

 

2 7/8

10.4

9.72

14.47

2.875

73

0.362

9.19

E, X, G, S

Int.Upset or Ext.Upset

 

3 1/2

9.5

8.81

13.12

3.5

88.9

0.254

6.45

E

Int.Upset or Ext.Upset

 

3 1/2

13.3

12.32

18.34

3.5

88.9

0.368

9.35

E, X, G, S

Int.Upset or Ext.Upset

 

3 1/2

15.5

14.64

21.79

3.5

88.9

0.449

11.4

E

Int.Upset or Ext.Upset

 

3 1/2

15.5

14.64

21.79

3.5

88.9

0.449

11.4

X, G, S

Ext.Upset or Int.-Ext.Upset

 

4

14

12.95

19.27

4

101.6

0.33

8.38

E, X, G, S

Int.Upset or Ext.Upset

 

4 1/2

13.75

12.25

18.23

4.5

114.3

0.271

6.88

E

Int.Upset or Ext.Upset

 

4 1/2

16.6

15

22.32

4.5

114.3

0.337

8.56

E, X, G, S

Ext.Upset or Int.-Ext.Upset

 

4 1/2

20

18.71

27.84

4.5

114.3

0.43

10.92

E, X, G, S

Ext.Upset or Int.-Ext.Upset

 

5

16.25

14.88

22.16

5

127

0.296

7.52

X, G, S

Int.Upset

 

5

19.5

17.95

26.7

5

127

0.362

9.19

E

Int.-Ext.Upset

 

5

19.5

17.95

26.7

5

127

0.362

9.19

X, G, S

Ext.Upset or Int.-Ext.Upset

 

5

25.6

24.05

35.8

5

127

0.5

12.7

E

Int.-Ext.Upset

 

5

25.6

24.05

35.8

5

127

0.5

12.7

X, G, S

Ext.Upset or Int.-Ext.Upset

 

5 1/2

21.9

19.83

29.52

5.5

139.7

0.361

9.17

E, X, G, S

Int.-Ext.Upset

 

5 1/2

24.7

22.56

33.57

5.5

139.7

0.415

10.54

E, X, G, S

Int.-Ext.Upset

 

6 5/8

25.2

22.21

33.04

6.625

168.3

0.33

8.38

E, X, G, S

Int.-Ext.Upset

 

6 5/8

27.72

24.24

36.06

6.625

168.3

0.362

9.19

E, X, G, S

Int.-Ext.Upset

 

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