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6 3/4″ MR632 Tricone Bit
IADC 632 · Φ171mm · 21kg · 3 1/2″ API
Cutting structure & formations
Gage rows: Ovoid. Inner rows: Ogive. For medium-hard formations with high compressive strength, typically limestone, sandstone, dolomite, chert.
ORIGINAL · EN Ovoid on gage, ogive on inner rows. Designed for medium-hard and abrasive formations with high compressive strengths such as limestone, sandstone, dolomite and chert.
Shirttail protection
Hardmetal on lug; Wear resistant carbide on shirttail lip and lug.
ORIGINAL · EN Hardmetal on lug; Wear resistant carbide on shirttail lip and lug.
- Diameter 6 3/4″ / Φ171 mm, weight 21 kg
- Connection 3 1/2″ API, bearing Roller-Ball-Roller-Thrust Button/Open Bearing
- WOB 20,250–40,500 lbs, rotary speed 60–100 rpm
Technical parameters
| Model | MR632 |
|---|---|
| IADC code | 632 |
| Diameter | 6 3/4″ / Φ171mm |
| Thread | 3 1/2″ API |
| Weight | 21 kg |
| Bearing type | Roller-Ball-Roller-Thrust Button/Open Bearing |
| Circulation | Jet Air |
| Inner row teeth | Ogive |
| Gage row teeth | Ovoid |
| Gage bevel protection | Round |
Operating suggestions
Actual parameters must be set per application
| Weight on bit | 20,250–40,500 lbs |
|---|---|
| Rotary speed | 60–100 rpm |
| Air back pressure | 0.2–0.4 MPa |
| Formation strength | 29,000–38,000 Psi |
