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Trenchless integral drill pipe
Material selection-special pipe for petroleum drill pipe that meets API standards, reliable performance
Unique twice thickening technology of drill pipe joint, smooth transition zone, reducing mud passing resistance
The first domestic integrated drill pipe, intermediate frequency heat treatment technology, the mechanical performance is higher than similar products
Joint thread buckle liquid nitriding treatment, penetration layer is deeper than traditional phosphating process, surface hardness is higher, thereby improving the service life of drill pipe
Trenchless drill pipe specification series performance parameters
|
Drill pipe parameters |
Connector |
Mechanical behavior |
||||||||||||
|
specification |
Steel grade |
Nominal weight |
Wall thickness |
Thickened form |
OD |
ID |
Tensile yield load |
Torsional yield torque |
Bending yield radius |
|||||
|
lb/ft |
mm |
in |
mm |
in |
mm |
lb |
KN |
ft/lb |
N.M |
ft |
m |
|||
|
2 |
G |
5.6 |
6.5 |
IEU |
2 1/8 |
54 |
5/8 |
16 |
871 |
642 |
4375 |
5932 |
125 |
38 |
|
S |
2 1/8 |
54 |
5/8 |
16 |
1120 |
826 |
5625 |
7626 |
154 |
32 |
||||
|
2 3/8 |
G |
6.65 |
7.11 |
2 3/4 |
69.8 |
1 |
25 |
1171 |
864 |
8751 |
11865 |
138 |
42 |
|
|
S |
2 3/4 |
69.8 |
1 |
25 |
1506 |
1110 |
11251 |
15255 |
118 |
36 |
||||
|
2 7/8 |
G |
15.5 |
9.19 |
3 1/4 |
82.6 |
1 1/8 |
30 |
1775 |
1309 |
16176 |
21932 |
220 |
67 |
|
|
S |
3 3/8 |
85.7 |
1 1/8 |
30 |
2282 |
1683 |
20798 |
28198 |
197 |
60 |
||||
|
3 1/2 |
G |
15.7 |
11.4 |
4 1/8 |
104.8 |
1 1/2 |
38 |
2644 |
1950 |
29250 |
40024 |
262 |
80 |
|
|
S |
4 1/8 |
104.8 |
1 1/2 |
38 |
3339 |
2507 |
37954 |
51459 |
236 |
72 |
||||
News
2020-09-23
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