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Heavy Weight Drill Pipe Standard: API Spec 7-1 Size: 2 7/8”, 3 1/2”, 4”, 4 1/2”, 5”, 5 1/2”, 6 5/8” Hard banding: ARNCO 100XT, ARNCO 200XT, ARNCO 300XT, TCS etc. Inside coated: TK34, DPC, TC-2000 etc. |
HWDP Parameters:
| Size(Inch) | Tube OD （+1/16， -1/32） | Tube ID Inch | Tool Joint OD （+1/16， -1/32）2 | Tool Joint ID （+1/8，0） | Connection | Max Elevator upset Dia. (Inch) | Center upset dia. （+1/16， -1/32） | Pin tong +1.26”,0 | Box tong +1.26”,0 | Weight (lb/ft) 3 |
| 2 7/8 | 2 7/8 | 1 1/2 | 3 3/8 | 1 1/2 | NC26 | 2 15/16 | 3 5/16 | 27 | 21 | 17.26 |
| 3 1/2 | 3 1/2 | 2 1/4 | 4 3/4 （4 7/8，5） | 2 1/4 | NC38 | 3 7/8 | 4 | 27 | 21 | 23.48 |
| 2 1/16 | 2 1/16 | 27 | 21 | 25.65 | ||||||
| 4 | 4 | 2 1/2 | 5 1/4 | 2 1/2 | NC40 | 4 3/16 | 4 1/2 | 27 | 21 | 29.87 |
| 2 9/16 | 2 9/16 | 27 | 21 | 29.64 | ||||||
| 4 1/2 | 4 1/2 | 2 11/16 | 6 1/4 | 2 11/16 | NC46 | 4 11/16 | 5 | 27 | 21 | 41.49 |
| 2 3/4 | 2 3/4 | 27 | 21 | 40.59 | ||||||
| 2 13/16 | 2 13/16 | 27 | 21 | 39.66 | ||||||
| 5 | 5 | 3 | 6 5/8 | 3 | NC50 | 5 1/8 | 5 1/2 | 27 | 21 | 50.38 |
| 5 1/2 | 5 1/2 | 3 1/4 | 7 （7 1/4， 7 1/2） | 3 1/4 | 5 1/2FH | 5 11/16 | 6 | 27 | 21 | 59.27 |
| 3 3/8 | 3 3/8 | 27 | 21 | 57 | ||||||
| 3 7/8 | 3 7/8 | 27 | 21 | 47.33 | ||||||
| 4 | 4 | 27 | 21 | 44.71 | ||||||
| 6 5/8 | 6 5/8 | 4 | 8 （8 1/4， 8 1/2） | 4 | 6 5/8FH | 6 15/16 | 7 1/8 | 27 | 21 | 81.73 |
| 4 1/2 | 4 1/2 | 27 | 21 | 71.43 | ||||||
| 5 | 5 | 27 | 21 | 57.73 |
Mechanical properties:
|
Style |
Construction |
Material |
Yield Strength Min/Max(ksi) |
Tensile strength Min/Max(ksi) |
Elongation 4(%) |
Reductior of area(%) |
|
General |
Welded |
Connection: |
120/- |
140/- |
13 |
45 |
|
AISI4145H |
||||||
|
Or 4137H |
||||||
|
Pipe：AISI1340 |
65/- |
95/- |
18 |
- |
||
|
Integral |
AISI4145H |
120/- |
140/- |
13 |
45 |
Spiral Heavy Weight Drill Pipe Specification:
|
|
Tube |
Tool Joint |
|
|
|
|||||
|
Nominal Size
|
Length |
ID |
Wall Thickness |
End |
Connection |
Tool |
Tool Joint ID |
Per foot |
Per Joint (31ft)kg |
Make-torque（ft-lb） |
|
ft |
Upset（B） |
Size and Type |
Joint OD |
lb |
||||||
|
2 7/8 |
31 |
1 1/2 |
0.688 |
2 15/16 |
NC26(2 3/8 IF) |
3 3/8 |
1 1/2 |
18.31 |
261 |
3,800 |
|
3 1/2 |
31 |
2 1/16 |
0.719 |
3 7/8 |
NC38(3 1/2 IF) |
4 3/4 |
2 1/16 |
27.14 |
390 |
11,500 |
|
3 1/2 |
31 |
2 1/4 |
0.625 |
3 7/8 |
NC38(3 1/2 IF) |
4 3/4 4 7/8 |
2 1/4 |
24.88 |
360 |
11,500 |
|
4 |
31 |
2 9/16 |
0.719 |
4 3/16 |
NC40(4 FH) |
5 1/4 4 7/8 |
2 9/16 |
31.51 |
455 |
14,600 |
|
4 1/2 |
31 |
2 3/4 |
0.875 |
4 11/16 |
NC46(4 IF) |
6 1/4 |
2 3/4 |
43.31 |
621 |
22,500 |
|
5 |
31 |
3 |
1 |
5 1/8 |
NC50(4 1/2 IF) |
6 5/8 |
3 |
52.34 |
750 |
30,000 |
|
5 1/2 |
31 |
3 1/4 |
1.125 |
5 11/16 |
5 1/2 FH |
7 1/4 |
3 1/4 |
63.87 |
915 |
41,200 |
|
6 5/8 |
31 |
4 1/2 |
1.063 |
6 5/16 |
6 5/8 FH |
8 |
4 1/2 |
74.62 |
1070 |
50,500 |