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Drill Pipe

Application: Used for Well Drilling

Specification: OD: 60.32mm ~ 168.28mm

                          WT: 7.11mm ~ 9.19mm

                          LENGTH: R1, R2, R3

Standard: API 5DP E75/X 95/G 105/S 135

Process Type: Seamless (SMLS), Electric Resistance Welded (ERW)

End: Thread, NC, IF, FH, REG

Surface: Anti-corrosion&water Based Paint

Packing: Protection Caps in Both End, Waterproof Paper Wrapped, Two Tags

               

 Production Process of Drill Pipe 

 Specification of Drill Pipe 

Drill Pipe: Drill pipe includes pipe body and tool joints(box and pin) welded together, used to connect drilling rig surface equipment and bottom equipment or bottom hole equipment. Drill pipe can bear heavy internal and external pressure, and twist, bend and vibration which can be used more than one time during oil or gas production.

Drill pipes are steel tubulars fitted with threaded ends called tool joints, which are commonly used in tension in the top part of the drill string to pump fluid and transmit torque to the bit.

Standard: Drill pipe

Grade: E75, X95, G105, S135 .

The wear-resistant belt of tool joint: Arnco 100XT, 200XT, 300XT, 400XT

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

Usage: Mine blasting, water well drilling, geothermal wells drilling, fore poling, coal and nonferrous metal mining projects, etc.

Dimension:

Size designation Calculated weight Tool joint designation Calculated weight grade Wall thickness Upset ends
in 1b/ft Kg/m in mm
2 3/8 6.65 NC26 6.26 9.32 E.X.G.S 0.28 7.11 EU
2 7/8 10.4 NC31 9.72 14.48 E.X.G.S 0.362 9.19 EU
3 1/2 13.3 NC38 12.31 18.34 E.X.G.S 0.368 9.35 EU
3 1/2 15.5 NC38,NC40 14.63 21.79 E.X.G.S 0.449 11.4 EU
4 14 NC40,NC46 12.93 19.26 E.X.G.S 0.33 8.38 IU,EU
4 1/2 16.6 NC46,NC50 14.98 22.31 E.X.G.S 0.337 8.56 EU,IEU
4 1/2 20 NC46,NC50 18.69 27.84 E.X.G.S 0.43 10.92 EU,IEU
5 19.5 NC50,NC52 17.93 26.71 E.X.G.S 0.362 9.19 IEU
5 25.6 NC50,5 1/2FH 24.03 35.79 E.X.G.S 0.5 12.7 IEU
5 1/2 21.9 5 1/2FH 19.81 29.51 E.X.G.S 0.361 9.17 IEU
5 1/2 24.7 5 1/2FH 22.54 33.57 E.X.G.S 0.415 10.54 IEU
6 5/8 25.2 6 5/8FH 22.19 33 E.X.G.S 0.33 8.387 IEU
6 5/8 27.7 6 5/8FH 24.21 41 E.X.G.S 0.362 9.19 IEU


 Technical Data of Drill Pipe 

Chemical Composition(%):

Grade

Chemical composition

P

S

E75

<0.015

<0.003

X95

<0.015

<0.003

G105

<0.015

<0.003

S135

<0.015

<0.003

Tool joint

<0.015

<0.003


Mechanical Properties:

Pipe body Grade Yield strength Tensile strength Elongation Hardness Full size charpy impact test(J)
min max min min
Psi MPa Psi MPa Psi MPa HBW HRC Average Single
E75 75000 517 105000 724 100000 689 625000A0.2/U0.9 - - 80 65
X95 95000 655 125000 862 105000 724 - - 80 65
G105 105000 724 135000 931 115000 793 - - 80 65
S135 135000 931 165000 1138 145000 1000 - - 80 65
Weld zone Tool joint 120000 827.4 - - 140000 965.3 0.13 285 - 80 65
E75 75000 517 - - 100000 689 - 37 40 27
X95 88000 609 - - 103000 712 - 37 40 27
G105 95000 655 - - 105000 724 - 37 40 27
S135 105000 724 - - 115000 37 40 27

 Surface of Drill Pipe 

Anti-corrosion&water Based Paint

 Packing of Drill Pipe 

Protection Caps in Both End, Waterproof Paper Wrapped, Two Tags


 Product Advantages of Drill Pipe 

1. To reduce tripping time. By using wireline replacement than traditional drill with drill rod from about 5-10 times faster;
2. Save the drill pipe and drill collars related procurement, transportation, inspection, maintenance and replacement costs;
3. Because there is always the wellbore casing, no longer have the time to drill down from the pumping action within the wellbore, the well control situation has improved;
4. Due to the elimination of the drill pipe from the pumping action and bring pressure pulsation;
5. Maintained when the wire rope from under the continuous circulation drill mud, cuttings prevents aggregation also reduces the occurrence of a kick;
6. To improve the return on annular velocity and cleaning the wellbore conditions. When the sleeve is pumped into the mud because of an inner diameter larger than the drill pipe, reducing the          hydraulic losses, which can reduce the drilling rig mud pump with power. Mud returns from the annular space between the casing and the borehole wall, since the annulus area is reduced, 

    improving the return on the speed and improve the drill cuttings taken out of the situation;

7. The size can be reduced rig, the rig structure to simplify and reduce the cost of drilling rig;
8. Rig more lightweight, easy to move and operate. Manual labor and costs are reduced.