Drill Pipe

  

I

ntroduction

A drill pipe is a seamless steel pipe that composes around 95% of the length of a drill string. For clarity, a drill string is what is used to actually drill into the ground to extract resources. The drill pipe is hollow, which allows drilling fluid to flow freely throughout the pipe and the pumping process to be completed successfully.

• Drill Pipe

•   

  2-3/8" to 7-5/8"

  OD, Range 2 and 3

• Heavy Weigh

•    2-3/8" to 6-5/8" OD, Range 2 and 3

• Drill Collars

•   2-7/8" to 14"

Grades

:

E75, X95, G105, S135

Connection threads:

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

Internal Upset: IU, EU, IEU

Heavy weight drill pipe is a medium-weight drilling pipe, (referred standards in API SPEC 7-1). It has bigger wall thickness than common drilling pipe and smaller than drill collar. 

   Specification

Drill pipe diameter

Drill pipe ID

Drill pipe weight

2-3/8 inch

1.815 inch

6.65 lb/ft

2-7/8 inch

2.151 inch

10.40 lb/ft

3-1/2 inch

2.764 inch, 2.602 inch

13.30 lb/ft, 15.50 lb/ft

4 inch

3.340 inch, 3.240 inch

14.00 lb/ft, 15.70 lb/ft

4-1/2 inch

3.826 inch, 3.640 inch

16.60 lb/ft, 20 lb/ft

5 inch

4.726 inch, 4.000 inch

19.50 lb/ft, 25.60 lb/ft

5-1/2 inch

4.778 inch, 4.670 inch

21.90 lb/ft, 24.70 lb/ft

6-5/8 inch

5.965 inch, 5.901 inch

25.20 lb/ft, 27.70 lb/ft

   Standard

Standard

API 5D

Grade

E-75, X-95, G-105, S-135

Application: 

For well drilling and borehole drilling

Length ranges

Range 1: 18 ft. to 22 ft.

Range 2: 27 ft. to 30 ft.

Range 3: 38 ft. to 45 ft.

Types

Drill pipe

borehole drilling

Heavy weight drill pipe

Tool joint

Pup joint

  

 

Mechanical Properties API Steel Drill Pipe

Grade

E-75

X-95

G-105

S-135

Yield Strength (minimum psi)

75,000

95,000

105,000

135,000

Yield Strength (maximum psi)

105,000

125,000

135,000

165,000

Tensile Strength (minimum psi)

100,000

105,000

115,000

145,000

   Chemical composition requirements

Chemical composition requirements

Pipe body

Phosphorus

max. %

Sulfur

max. %

Pipe body grade E

0.030

0.020

Pipe body grades X, G and S

0.020

0.015

Tool joint

0.020

0.015

  Our factory

  Packing

· 1- Plastic caps plugged at the two sides of pipe ends

· 2- Should be avoided by the steel strapping and transport damage

· 3- Bundled signs should be uniform and consistent

· 4- The same bundle(batch) of steel pipe should be came from the same furnace.

· 5- The steel pipe has the same furnace number, the same steel grade, the same specifications.

Looking forward to your favourable inquiry!