Technical Data
The chart below can be used to help determine the size pipe best suited to your requirements.
PIPE SIZE (inches) |
MINIMUM YIELD (psi) |
NST CONNECTION |
OD (inches) |
ID (inches) |
MINIMUM RADIUS (feet) |
TORSIONAL YIELD* (ft/lbs) |
1 1/8" |
110K |
1220HT |
1 3/4 |
3/8 |
94 |
1,600 |
1.660" |
110K |
1220HT |
1.700 |
11/16 |
138 |
1,108 |
1.660" |
120K |
NC-16 |
2.125 |
1 |
138 |
1,924 |
1.660" |
110K |
1600HT |
1 7/8 |
3/4 |
138 |
1,547 |
2 3/8" |
110K |
1812HT |
2.400 |
7/8 |
198 |
3,526 |
2 3/8" |
110K |
2400HT |
2 5/8 |
0.875 |
198 |
5,024 |
2 3/8" |
110K |
1420HT |
2 3/8 |
0.875 |
198 |
2,896 |
2 7/8" |
110K |
969HT |
2 7/8 |
1 |
240 |
8,238 |
|
2 7/8" |
110K |
286 |
2 7/8 |
1.995 |
240 |
6,122 |
2 7/8" |
110K |
1927HT |
2.900 |
1 |
240 |
6,497 |
| 2 7/8" | 110K | 286 | 3.062 | 1.700 | 240 | 9,715 |
2 7/8" |
110K |
399 |
3.062 |
1.950 |
240 |
3,933 |
2 7/8" |
110K |
399HT |
3.062 |
1.950 |
240 |
7,078 |
3 1/2" |
110K |
2489 |
3.500 |
1.250 |
292 |
13,902 |
3 1/2" |
110K |
921HT |
3 1/2 |
1 1/2 |
292 |
11,160 |
5" |
105K |
1352 |
5.125 |
3.750 |
417 |
27,486 |
5" |
105K |
1352 |
5.125 |
4 |
417 |
18,313 |
5" |
110K |
1432 |
5.125 |
2.500 |
417 |
36,807 |
5 1/2" |
120K |
621HT |
5.500 |
3.000 |
417 |
53,263 |
9 5/8" |
110K |
813 |
10.000 |
7.750 |
802 |
173,275 |
9 5/8" |
110K |
2501 |
10.500 |
8.563 |
802 |
94,446 |
9 5/8" |
120K |
2502 |
12.000 |
8.563 |
802 |
232,646 |
11 3/4" |
110K |
2497 |
11.750 |
10.682 |
979 |
84,231 |
*NOTE. Torsional Yield represents the weakest member regardless of whether it is the connection or the pipe. |
||||||
The table below (excerpted from the API RP7G) can be used to help in the design of larger bore strings.
Table 2 - New Drill Pipe Torsional and Tensile Data |
|||||||||
(1) |
(2) |
(3) |
(4) |
(5) |
(6) |
(7) |
(8) |
(9) |
(10) |
Size |
Nom. Weight Thds & Couplings |
Torsional Data* | Tensile Data Based on Minimum Values** | ||||||
OD |
Torsional Yield Strength, ft-lb | Load at the Minimum Yield Strength, lb; | |||||||
in. |
lb. |
E |
95 |
105 |
135 |
E |
95 |
105 |
135 |
2 3/8 |
4.85 |
4763. |
6033. |
6668. |
8574. |
97871. |
123902. |
136944. |
176071. |
6.65 |
6250. |
7917. |
8751. |
11251. |
138214. |
175072. |
193500. |
248786. |
|
2 7/8 |
6.85 |
8083. |
10238. |
11316. |
14549. |
135902. |
172143. |
190263. |
244624. |
10.40 |
11554. |
14635. |
16176. |
20798. |
214344. |
271503. |
300082. |
385820. |
|
3 1/2 |
9.50 |
14146. |
17918. |
19805. |
25463. |
194264. |
246068. |
271970. |
349676. |
13.30 |
18551. |
23498. |
25972. |
33392. |
271569. |
343988. |
380197. |
488825. |
|
15.50 |
21086. |
26708. |
29520. |
37954. |
322775. |
408848. |
451885. |
580995. |
|
4 |
11.85 |
19474. |
24668. |
27264. |
35054. |
230755. |
292290. |
323057. |
415360. |
14.00 |
23288. |
29498. |
32603. |
41918. |
285359. |
361454. |
399502. |
513646. |
|
15.70 |
25810. |
32692. |
36134. |
46458. |
324118. |
410550. |
453765. |
583413. |
|
4 1/2 |
13.75 |
25907. |
32816. |
36270. |
46633. |
270034. |
342043. |
378047. |
486061. |
16.60 |
30807. |
39022. |
43130. |
55453. |
330558. |
418707. |
462781. |
595004. |
|
20.00 |
36901. |
46741. |
51661. |
66421. |
412358. |
522320. |
577301. |
742244. |
|
22.82 |
40912. |
51821. |
57276. |
73641. |
471239. |
596903. |
659734. |
848230. |
|
5 |
16.25 |
35044. |
44389. |
49062. |
63079. |
328073. |
415559. |
459302. |
590531. |
19.50 |
41167. |
52144. |
57633. |
74100. |
395595. |
501087. |
553833. |
712070. |
|
25.60 |
52257. |
66192. |
73159. |
94062. |
530144. |
671515. |
742201. |
954259. |
|
5 1/2 |
19.20 |
44074. |
55826. |
61703. |
79332. |
372181. |
471429. |
521053. |
669925. |
21.90 |
50710. |
64233. |
70994. |
91278. |
437116. |
553681. |
611963. |
786809. |
|
24.70 |
56574. |
71660. |
79204. |
101833. |
497222. |
629814. |
696111. |
894999. |
|
6 5/8 |
25.20 |
70580. |
89402. |
98812. |
127044. |
489464. |
619988. |
685250. |
881035. |
27.70 |
76295. |
96640. |
106813. |
137330. |
534199. |
676651. |
747877. |
961556. |
|
*Based on the shear strength equal to 57.7% of the minimum yield strength and nominal wall thickness. Minimum torsional yield calculated from Formula A.15, A.9, Appendix A. |
**Minimum tensile strength calculated from Formula A.13, Par A.7, Appendix A. |
||||||||
