Drill Pipe
Pipe Type:Drill pipe,API 5DP Drill pipe; 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
Phone : +86 13310652223
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Product Details

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.


outer diameter normal weight steel gradewall thickness upset ends tool joint designation
inmminmm
2 3/860.326.65E,X,G0.2807.11EUNC26
2 7/873.0210.40E,X,G,S0.3629.19EUNC31
3 1/288.909.50E0.2546.45EUNC38
13.30E,X,G,S0.3689.35EUNC38
13.50E,X,G0.44911.40EUNC38
S0.44911.40EUNC40
4101.6014.00E,X,G,S0.3308.38IUNC40
E,X,G,S0.3308.38EUNC46
4 1/2114.3013.75E0.2716.88IUNC46
13.75E0.2716.88EUNC46
16.60E,X,G,S0.3378..56EUNC50
20.00E,X,G,S0.43010.92EUNC50
16.60E,X,G,S0.3378.56IEUNC46
20.00E,X,G,S0.43010.92IEUNC46
5127.0019.50E,X,G,S0.3629.19IEUNC50
19.50E,X,G,S0.3629.19IEU5 1/2 FH
25.60E,X,G0.50012.70IEUNC50
25.60E,X,G,S0.50012.70IEU5 1/2 FH
5 1/2139.7021.90E,X,G,S0.3619.17IEU5 1/2 FH
24.70E,X,G,S0.41510.54IEU5 1/2 FH
6 5/8168.2825.20E,X,G,S0.3308.38IEU6 5/8 FH
27.70E,X,G,S0.3629.19IEU6 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 MeuD≥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 Thickness0, -12.5%t

Chemical Composition, Mass Fraction(%)


 steel gradeP (%)S (%)
 Pipe bodyE0.0300.020
X, G, S0.0200.015
Tool Joint0.0200.015

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*7.5average(min)10*5average(min)
minmaxmin
E517724689
54(47)43(38)30(26)
X655862724
G724931793
S93111381000

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,

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