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Drill Pipe
Drill Pipe
Drill Pipe
Drill Pipe
Drill Pipe
Drill Pipe
Drill Pipe
Drill Pipe
Drill Pipe
Drill Pipe
  • Keywords: Drill Pipe, Heavy Weight Drill Pipe, Drill Collar
  • Size: 2-3/8"--6-5/8"
  • Standard: API 5DP
  • Grade: E75, G105, S135, SS-105, X95, X57, X75, X39
  • Length: Range 1, Range 2, Range 3

Product Description of Drill Pipe

Drill pipe is a key part used in the energy project's drilling operations. It’s a heavy-duty steel pipe that connects the drilling rig on the surface to the drill bit at the bottom of the well. The drill pipe is a fundamental component of a drill string in rotary drilling operations. It serves multiple critical functions: transmitting rotational torque from the drill rig to the drill bit, providing a conduit for the circulation of drilling fluid to cool the bit and carry cuttings to the surface, and withstanding significant tensile, compressive, and torsional stresses. Drill pipes are manufactured in standard lengths and connected by threaded tool joints, allowing for the extension of the drill string as the well deepens.


Upset of drill pipe:

The upset (thread-end finish) refers to the wall of the tool joint at the threaded connection. Drill pipe is offered with an internal upset (IU), an external upset (EU), or an internal-external upset (IEU).

IU - In an internal upset increased thickness along the inside walls compensate for the metal removed in threading with a uniform, straight outside wall.

EU - In an external upset the increased thickness along the outside diameter of the tubing compensates for the metal removed in threading with a straight bore.

IEU - In an internal-external upset thickness is increased along both the inside and outside walls of the pipe to compensate for the metal removed in threading.


Thread/Connection Types of Drill Pipe

NC26, NC31, NC38, NC40, NC46, NC50, 5-1/2 FH, 6-5/8 FH

Standard of Drill Pipe



Chemical Composition and Mechanical Properties of drill pipe

Grade

Chemical Composition

Mechanical Properties

P

S

Yield Strength(Mpa)

Tensile Strength(Mpa)

E-75

≤0.020

≤0.015

517-724

≥689

X-95

≤0.020

≤0.015

655-862

≥724

G-105

≤0.020

≤0.015

724-931

≥793

S-135

≤0.020

≤0.015

931-1138

≥1000



Specification of drill pipe

Designations

Tool Joint Data

Drill Pipe Outer Diameter (Inches)

Drill Pipe Weight (lbs/ft)

Grade

Upset Type

Rotary Shouldered Connection

OD (Inches)

PIN ID (Inches)

Pin OD Length* (Inches)

Box OD Length* (Inches)

2-3/8

6.65

E

EU

NC26

3-3/8

1-3/4

7

8

2-3/8

6.65

X,G

EU

NC26

3-3/8

1-3/4

7

8

2-3/8

10.40

E

EU

NC31

4-1/8

2-1/8

7

9

2-3/8

10.40

X,G

EU

NC31

4-1/8

2

7

9

2-3/8

10.40

S

EU

NC31

4-3/8

1-5/8

7

9

3-1/2

9.50

E

EU

NC38

4-3/4

2-11/16

8

10-1/2

3-1/2

13.30

E

EU

NC38

4-3/4

2-11/16

8

10-1/2

3-1/2

13.30

X

EU

NC38

5

2-9/16

8

10-1/2

3-1/2

13.30

G

EU

NC38

5

2-7/16

8

10-1/2

3-1/2

13.30

S

EU

NC38

5

2-1/8

8

10-1/2

3-1/2

15.50

E

EU

NC38

4-3/4

2-9/16

8

10-1/2

3-1/2

15.50

X

EU

NC38

5

2-7/16

8

10-1/2

3-1/2

15.50

G

EU

NC38

5

2-1/8

8

10-1/2

3-1/2

15.50

S

EU

NC40

5-1/2

2-1/4

7

10

4

14.00

E

IU

NC40

5-1/4

2-13/16

7

10

4

14.00

X

IU

NC40

5-1/4

2-13/16

7

10

4

14.00

G

IU

NC40

5-1/4

2-13/16

7

10

4

14.00

S

IU

NC40

5-1/4

2-9/16

7

10

4

14.00

E

EU

NC46

6

3-1/4

7

10

4

14.00

X,G

EU

NC46

6

3-1/4

7

10

4

14.00

S

EU

NC46

6

3

7

10

4-1/2

16.60

E

EU

NC50

6-5/8

3-3/4

7

10

4-1/2

16.60

X

EU

NC50

6-3/8

3-3/4

7

10

4-1/2

16.60

G

EU

NC50

6-5/8

3-3/4

7

10

4-1/2

16.60

S

EU

NC50

6-3/8

3-1/2

7

10

4-1/2

20.00

E

EU

NC50

6-3/8

3-3/4

7

10

4-1/2

20.00

X

EU

NC50

6-5/8

3-1/2

7

10

4-1/2

20.00

G

EU

NC50

6-3/8

3-1/2

7

10

4-1/2

20.00

S

EU

NC50

6-5/8

3-1/4

7

10

4-1/2

16.60

E

IEU

NC46

6-1/4

3-1/4

7

10

4-1/2

16.60

X

IEU

NC46

6-1/4

3-1/4

7

10

4-1/2

16.60

G

IEU

NC46

6-1/4

3

7

10

4-1/2

16.60

S

IEU

NC46

6-1/4

2-3/4

7

10

4-1/2

20.00

E

IEU

NC46

6-1/4

3-1/4

7

10

4-1/2

20.00

X

IEU

NC46

6-1/4

3

7

10

4-1/2

20.00

G

IEU

NC46

6-1/4

2-3/4

7

10

4-1/2

20.00

S

IEU

NC46

6-3/8

2-1/2

7

10

5

19.50

E

IEU

NC50

6-5/8

3-3/4

7

10

5

19.50

X

IEU

NC50

6-5/8

3-1/2

7

10

5

19.50

G

IEU

NC50

6-5/8

3-1/4

7

10

5

19.50

S

IEU

NC50

6-5/8

2-3/4

7

10

5

19.50

E

IEU

5-1/2FH

7

3-3/4

8

10

5

19.50

X,G

IEU

5-1/2 FH

7

3-3/4

8

10

5

19.50

S

IEU

5-1/2 FH

7-1/4

3-1/2

8

10

5

25.60

E

NC50

6-5/8

3-1/2

3-3/4

7

10

5

25.60

X

IEU

NC50

6-5/8

3

7

10

5

25.60

G

IEU

NC50

6-5/8

2-3/4

7

10

5

25.60

E

IEU

5-1/2 FH

7

3-1/2

8

10

5

25.60

X

IEU

5-1/2 FH

7

3-1/2

8

10

5

25.60

G

IEU

5-1/2 FH

7-1/4

3-1/2

8

10

5

25.60

S

IEU

5-1/2 FH

7-1/4

3-1/4

8

10

5-1/2

21.90

E

IEU

5-1/2 FH

7

4

8

10

5

21.90

X

IEU

5-1/2 FH

7

3-3/4

8

10

5-1/2

21.90

G

IEU

5-1/2 FH

7-1/4

3-1/2

8

10

5

21.90

S

IEU

5-1/2 FH

7-1/2

3

8

10

5-1/2

24.70

E

IEU

5-1/2 FH

7

4

8

10

5

24.70

X,G

IEU

5-1/2 FH

7-1/4

3-1/2

8

10

5-1/2

24.70

S

IEU

5-1/2 FH

7-1/2

3

8

10

6-5/8

25.20

E

IEU

6-5/8 FH

8

5

8

11

6-5/8

25.20

X

IEU

6-5/8 FH

8

5

8

11

6-5/8

25.20

G

IEU

6-5/8 FH

8-1/4

4-3/4

8

11

6-5/8

25.20

S

IEU

6-5/8 FH

8-1/2

4-1/4

8

11

6-5/8

27.70

E

IEU

6-5/8 FH

8

5

8

11

6-5/8

27.70

X,G

IEU

6-5/8 FH

8-1/4

4-3/4

8

11

6-5/8

27.70

S

IEU

6-5/8 FH

8-1/2

4-1/4

8

11


Application of Drill Pipe

  • Water Well Drilling

  • Mining Operations

  • Structural Applications in Construction

  • Hydrocarbon Production Pipelines

  • Environmental Remediation

  • Agricultural Irrigation Systems

  • Piling for Bridges and Infrastructure Projects

  • Telecommunications Tower Foundations


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