Bladed Hole Opener
Technical Summary
The Bladed Hole Opener is used for well bore enlargement where roller cones are not necessary or applicable.
Features
- Machined out of AISI 4140HT/4145HT
- Blade structures may be integral spiral, integral straight or welded straight
- Blades are dressed with tungsten carbide chips to allow for backreaming
- Slick blade OD helps reduce vibrations and ensures full gauge hole
- 3 field changeable jets allow for effective blade and hole cleaning
- May be box down, integral bull nose or fitted with the Spherical Pilot Bit
- Note: May be dressed with PDC
Specifications
| Size Range | Pilot Hole Size | Standard Top Connection (Pin) |
Standard Bottom Connection (Box) |
Standard Bull Nose Length |
|---|---|---|---|---|
| 3-1/2 – 4-1/4 | 3 | 2-3/8 Reg | 2-3/8 / Bull Nose | 24.00 – 42.00 |
| 4-3/8 – 4-3/4 | 3-3/4 | 2-7/8 Reg | 2-7/8 Reg / Bull Nose | 24.00 – 42.00 |
| 5-7/8 – 6-7/8 | 3-7/8 | 3-1/2 Reg | 3-1/2 Reg / Bull Nose | 36.00 – 42.00 |
| 7-1/2 – 8-3/4 | 4-3/4 | 4-1/2 Reg | 4-1/2 Reg / Bull Nose | 36.00 – 48.00 |
| 9-5/8 – 10-5/8 | 6-3/4 | 6-5/8 Reg | 6-5/8 Reg / Bull Nose | 42.00 – 60.00 |
| 12-1/4 – 13-1/2 | 8-1/8 | 6-5/8 Reg | 6-5/8 Reg / Bull Nose | 42.00 – 60.00 |
| 14-1/2 – 14-3/4 | 8-1/8 | 6-5/8 Reg | 6-5/8 Reg / Bull Nose | 42.00 – 60.00 |
| 17-1/4 – 17-3/4 | 9-7/8 | 6-5/8 / 7-5/8 Reg | 6-5/8 / 7-5/8 Reg / Bull Nose | 42.00 – 60.00 |
| 18-1/2 – 26 | 11-1/2 | 7-5/8 Reg | 7-5/8 Reg / Bull Nose | 42.00 – 60.00 |
