Akerman et al., 1992 - Google Patents
Cemented Carbide BodyAkerman et al., 1992
- Document ID
- 12691211965753064856
- Author
- Akerman J
- Fischer U
- Hartzell T
- Publication year
- Publication venue
- Patent NumberEP 0498781
External Links
- 238000005553 drilling 0 abstract description 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button type inserts
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