BE471243A - - Google Patents
Info
- Publication number
- BE471243A BE471243A BE471243DA BE471243A BE 471243 A BE471243 A BE 471243A BE 471243D A BE471243D A BE 471243DA BE 471243 A BE471243 A BE 471243A
- Authority
- BE
- Belgium
- Prior art keywords
- foil
- tube
- exhaust
- exhaust device
- working end
- Prior art date
Links
- 239000011888 foil Substances 0.000 claims description 45
- 239000007789 gas Substances 0.000 claims description 19
- 238000005553 drilling Methods 0.000 claims description 16
- 230000035939 shock Effects 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000000737 periodic effect Effects 0.000 claims description 4
- 238000001595 flow curve Methods 0.000 claims description 3
- 239000011435 rock Substances 0.000 description 6
- 239000000428 dust Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 210000003813 thumb Anatomy 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
- 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
- E21B21/012—Dust eliminating or dust removing while drilling using exhaust air from the drilling motor for blowing off the dust at the borehole entrance
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 |
|---|---|
| BE471243A true BE471243A (enrdf_load_stackoverflow) |
Family
ID=121165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE471243D BE471243A (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE471243A (enrdf_load_stackoverflow) |
-
0
- BE BE471243D patent/BE471243A/fr unknown
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