BE446534A - - Google Patents
Info
- Publication number
- BE446534A BE446534A BE446534DA BE446534A BE 446534 A BE446534 A BE 446534A BE 446534D A BE446534D A BE 446534DA BE 446534 A BE446534 A BE 446534A
- Authority
- BE
- Belgium
- Prior art keywords
- borehole
- cutting edges
- drill
- head
- hard metal
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 13
- 238000005553 drilling Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims 1
- 239000011888 foil Substances 0.000 description 8
- 239000011435 rock Substances 0.000 description 4
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE446534A true BE446534A (zh) |
Family
ID=102625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE446534D BE446534A (zh) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE446534A (zh) |
-
0
- BE BE446534D patent/BE446534A/fr unknown
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