OCTG

OCTG

Casing Pipe Tubing Pipe Sucker rod Tubing and Casing Coupling Pup Joint Drill Pipe Drill Collars Screen Pipe

Seamelss steel pipe

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Pipe Fitting

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Steel Hollow Section

Stainless Hollow Section Carbon Hollow Section

Steel Plate

Aluminum Steel Plate Carbon steel Plate Stainless Steel Plate

Steel Profile

Angle steel Channel Steel I-Beam H Section

Drill Pipe

Pipe Type: Heavy Weight Drill Pipe (HWDP),Down Hole Drill Rod,Drill Pipe, Square and Hexagonal Kelly

Size:
 OD: 60.32mm-168.28mm
 WT: 6.45-12.7mm
 LENGTH: R1, R2, R3

Pipe Standard: API 5DP E75, X95, G105, S135

Upset Style:IU, EU, IEU

The wear-resistant belt of tool joint:TK34,TC2000, Arnco 100XT, 200XT, 300XT400XT

Internal coating drill pipe:TK34,DPC,TC2000,TC3000

Connection:NC26 - NC50, 5 1/2FH, 6 5/8FH

USAGE:Mine blasting,water well drilling,geothermal wells drilling, fore poling,cooal and nonferrous metal mining projects etc;

Introduction

Drill pipe is heavy, seamless pipe which provide rotation for circulating the drilling fluid. The pipe helps the drilling fluid to be pumped back up the annulus. The annulus of an oil well is the space between the casing and the piping or any immediate space between any casing and tubing surrounding it. The Annulus helps in the easy circulation of the fluid in the well. The pipe is subject to axial tension as high torque is required for rotating the down-hole assembly and drilling the fluid and circulating it. All this creates a large amount of stress on the drill pipe; hence the OCTG pipe should be extremely strong.

Drill Pipe Size:
 OD: 60.32mm-168.28mm
 WT: 6.45-12.7mm
 LENGTH: R1, R2, R3

Heavy Weigh

   2-3/8" to 6-5/8" OD, Range 2 and 3

Drill Collars

size: 2-7/8" to 14"

Grades: E75, X95, G105, S135
Connection threads:NC26, NC31, NC38, NC40, NC46, NC50, 5 1/2FH.6 5/8FH.

Pipe Standard: API 5DP E75, X95, G105, S135

Upset Style:IU, EU, IEU

The wear-resistant belt of tool joint:TK34,TC2000, Arnco 100XT, 200XT, 300XT400XT

Internal coating drill pipe:TK34,DPC,TC2000,TC3000

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

USAGE:Mine blasting,water well drilling,geothermal wells drilling, fore poling,cooal and nonferrous metal mining projects etc;

Application: Drill pipe is for exploration and development of oil and gas wells.

 

More products can be produced, please contact us

High Strength Drill Pipe

Thick Wall Drill Pipe

Sour Service Drill Pipe

Horizontal Directional Drill Pipe

Heavy Weight Drill Pipe:

  • Standard HWDP
  • Tri-spiral HWDP
  • Spiral-Wate HWDP
  • High Strength Welded HWDP
  • Heavy Weight Drill Pipe

Drill Collar and Drill Stem Accessories:

  • Drill Collar
  • Drill Pipe Pup Joint
  • Sub
  • 2 ½” – 6” Square kelly    3” – 6” Hexagonal kelly
  • Drill Collar
  • Kelly( Square Kelly /Hexagonal Kelly)

Specification

 

outer diameter

 

normal weight

 

steel grade

wall thickness

 

upset ends

 

tool joint designation

in

mm

in

mm

2 3/8

60.32

6.65

E,X,G

0.280

7.11

EU

NC26

2 7/8

73.02

10.40

E,X,G,S

0.362

9.19

EU

NC31

3 1/2

88.90

9.50

E

0.254

6.45

EU

NC38

13.30

E,X,G,S

0.368

9.35

EU

NC38

13.50

E,X,G

0.449

11.40

EU

NC38

S

0.449

11.40

EU

NC40

4

101.60

14.00

E,X,G,S

0.330

8.38

IU

NC40

E,X,G,S

0.330

8.38

EU

NC46

4 1/2

114.30

13.75

E

0.271

6.88

IU

NC46

13.75

E

0.271

6.88

EU

NC46

16.60

E,X,G,S

0.337

8..56

EU

NC50

20.00

E,X,G,S

0.430

10.92

EU

NC50

16.60

E,X,G,S

0.337

8.56

IEU

NC46

20.00

E,X,G,S

0.430

10.92

IEU

NC46

5

127.00

19.50

E,X,G,S

0.362

9.19

IEU

NC50

19.50

E,X,G,S

0.362

9.19

IEU

5 1/2 FH

25.60

E,X,G

0.500

12.70

IEU

NC50

25.60

E,X,G,S

0.500

12.70

IEU

5 1/2 FH

5 1/2

139.70

21.90

E,X,G,S

0.361

9.17

IEU

5 1/2 FH

24.70

E,X,G,S

0.415

10.54

IEU

5 1/2 FH

6 5/8

168.28

25.20

E,X,G,S

0.330

8.38

IEU

6 5/8 FH

27.70

E,X,G,S

0.362

9.19

IEU

6 5/8 FH

Note: EU— external upset; IU— internal upset; IEU—internal & external upset.

Dimension Tolerances

 

 Tolerance

 

Drill-pipe-body Outside Diameter

          Pipe body

 

D≤101.60mm,±0.79mm

D≥114.30mm,+1.0%, -0.5%D

 

Drill-pipe-body behind the Meu

D≥60.32~≤88.90mm,+2.38%, -0.79%D

D>88.90~≤127.00mm,+2.78mm, -0.75%D

D>127.00~≤168.28mm,+3.18mm,-0.75%D

     Wall Thickness

0, -12.5%t

Chemical Composition, Mass Fraction(%)

 

 

steel grade

P (%)

S (%)

 

Pipe body

E

0.030

0.020

X, G, S

0.020

0.015

Tool Joint

0.020

0.015

Mechanical Properties

 

steel grade

 tensile properties

 (21℃±3℃)

Charpy V-notch longitudinal absorbed-energy (21℃±3℃)

 

yield strength (Mpa)

 

tensile strength

(Mpa)

 

elongation(%)

10*10

 

average(min)

10*7.5

average(min)

10*5

average(min)

min

max

min

E

517

724

689

 

54(47)

43(38)

30(26)

X

655

862

724

G

724

931

793

S

931

1138

1000

Remarks: k—constant, equal to 1944 (62500); A—cross-sectional area of tensile specimen, mm2(in2); Udp—specified minimum tensile strength, MPa(Ib/in2)

High Strength Drill Pipe

Besides the common 2"-10" API drill pipe, CSC also manufacture high strength drill pipe, like Z-140 and V-150, the performances as below,

Thick Wall Drill Pipe

the thick-wall drill pipe like below

Sour Service Drill Pipe

SS Drill Pipe Body Mechanical Performance

SS drill pipe tool joint mechanical performance

Production process

Packaging

If you have any inquiries and questions, please contact CONTINENTAL STEEL CO.,LTD. at any time. Thanks in advance. Welcome!

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CONTINENTAL STEEL CO.,LTD

Continental Steel Co.,Ltd(CSC) is a pioneering manufacturer, stockist, and supplier of steel pipe products.

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