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Oilfield Tubular
API 5DP Drill Pipe
OD: 60.32mm-168.28mm
WT: 6.45-12.7mm
Length: r1, r2, r3
HHeavy Weight: 2-3/8" to 6-5/8" od, range 2 and 3
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.
Standard
Specification
Drill pipe is a hardwearing seamless steel pipe that is rotated to circulate the drilling fluid. This pipe is useful for pumping back the drilling fluid back up the annulus. The annulus is the space in the oil well between the casing and the piping. Easy circulation of the fluid within the well is possible because of the Annulus. The api 5dp drill pipe is subject to axial tension since high torque is required for rotating the down-hole assembly drilling the fluid and circulating it. The OCTG drill pipe needs to be extremely strong as they have to bear a high amount of stress underground. The drill pipe is used at the drilling rigs and they are available in different sizes and different qualities.
API 5DP drill pipe is trailing with screw thread for connecting the drilling rig located at the bottom of surface drilling equipment and mill equipment or bottom outlet device. The purpose is to drill the drilling mud delivered to the drill bit, and drill with the increase, decrease or rotating bottom outlet means. Drill pipe must be able to withstand great external pressure, twisting, bending and vibration. In the mining and oil and gas refining process, the drill pipe can be used multiple times.
Chemical Composition of Drill Pipe(%):
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 of Drill Pipe:
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 |
625000A 0.2/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 |
Process
Yield strength: Min 517 Mpa
Tensile strength: Min 724 Mpa
Pipe body material: High quality alloy seamless pipe of E75
Thread treatment: Phosphorization or copper plating