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Integral Heavy Weight Drill Pipe

Integral Heavy Weight Drill Pipe
  • Integral Heavy Weight Drill Pipe
Produced by: RUGAO YAOU IMPORT & EXPORT CO., LTD

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The wall thickness of heavy weight drill pipe is between drill pipe and drill collar, its structure is similar with drill pipe. It is made from premium alloyed steel. Its both tool joints and middle upset are welded hardbands. Technical parameters meet with API Spec7-1 Standard.

Technicalspecificationsandparameters

Size(in)

O.D.
(in)

I.D.(in)

ToolJoint
O.D.(in)

ToolJoint
I.D.(in)

Connection

Max.elevator
diameter(in)

Central
upsetdia.(in)

Min.driftdia.
size(in)

31/2

31/2

21/4

43/4

21/4

NC38

37/8

4

2

21/16

(47/8,5)

21/16

113/16

4

4

21/2

51/4

21/2

NC40

43/16

41/2

21/4

29/16

29/16

25/16

41/2

41/2

211/16

61/4

211/16

NC46

411/16

5

27/16

23/4

23/4

21/2

213/16

213/16

29/16

5

5

3

65/8

3

NC50

51/8

51/2

23/4

51/2

51/2

31/4

7

31/4

51/2FH

511/16

6

3

33/8

(71/4,71/2)

33/8

31/8

37/8

37/8

35/8

4

4

33/4

65/8

65/8

4

8

4

65/8FH

615/16

71/8

33/4

41/2

(81/4,81/2)

41/2

41/4

5

5

43/4

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