BE352137A - - Google Patents
Info
- Publication number
- BE352137A BE352137A BE352137DA BE352137A BE 352137 A BE352137 A BE 352137A BE 352137D A BE352137D A BE 352137DA BE 352137 A BE352137 A BE 352137A
- Authority
- BE
- Belgium
- Prior art keywords
- tool
- foil
- holes
- sleeve
- wall
- Prior art date
Links
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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/011—Dust eliminating or dust removing while drilling
- E21B21/014—Preventing exhaust air from the drill motor from blowing-off towards the working face
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)
- Auxiliary Devices For Music (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE352137A true BE352137A (cs) |
Family
ID=26947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE352137D BE352137A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE352137A (cs) |
-
0
- BE BE352137D patent/BE352137A/fr unknown
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