API Spiral drill collar
group nameDrilling Tools
-
Min Order2 piece
modelSpiral drill collar
-
update timeMon, 08 Apr 2013 00:05:33 GMT
Paramtents
API 7-1 Spiral drill collar Spiral drill collar
CNC or Not Normal
Condition New
Packging & Delivery
Min Order2 piece
Briefing
2.provide bit weight to drill bit so that drill pipe is in tension
3.full size
4.best s
Detailed
1. API Spiral collar
2.provide bit weight to drill bit so that drill pipe is in tension
3.full size
4.best service
Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure.Spiral drill collars are manufactured strictly according to API Spec7—1 and Standard SY/T5144
OD |
Cutting depth | ±25.4 Lead | ||
mm | in | A(mm) | B(mm) | mm |
86 | 3 3/8 | 3.5±0.79 |
| 679 |
98.4 | 3 7/8 | 4.0±0.79 |
| 914 |
101.6-111.1 | 4-4 3/8 | 4.8±0.79 |
| 914 |
114.3-130.2 | 4 1/2-5 1/8 | 5.6±0.79 |
| 965 |
133.4-146.1 | 5 1/4-5 3/4 | 6.4±0.79 |
| 1067 |
149.2-161.9 | 5 7/8-6 3/8 | 7.1±1.59 |
| 1067 |
165.1-177.8 | 6 1/2-7 | 7.9±1.59 |
| 1168 |
181.0-200.0 | 7 1/8-7 7/8 | 8.7±1.59 | 5.6±0.79 | 1626 |
203.2-225.4 | 8-8 7/8 | 9.5±1.59 | 6.4±0.79 | 1727 |
228.6-250.8 | 9-9 7/8 | 10.3±2.37 | 7.1±1.59 | 1829 |
254.0-276.2 | 10-10 7/8 | 11.1±2.37 | 7.9±1.59 | 1930 |
279.4 | 11 | 11.9±2.37 | 8.7±1.59 | 2032 |
