BE421995A - - Google Patents
Info
- Publication number
- BE421995A BE421995A BE421995DA BE421995A BE 421995 A BE421995 A BE 421995A BE 421995D A BE421995D A BE 421995DA BE 421995 A BE421995 A BE 421995A
- Authority
- BE
- Belgium
- Prior art keywords
- electric
- drill
- drills
- drill according
- drilling
- Prior art date
Links
- 238000005553 drilling Methods 0.000 claims description 14
- 238000005065 mining Methods 0.000 claims description 9
- 239000002360 explosive Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 210000000332 tooth crown 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/002—Drilling with diversely driven shafts extending into the borehole
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (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 |
|---|---|
| BE421995A true BE421995A (fr) |
Family
ID=83746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE421995D BE421995A (fr) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE421995A (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000073617A1 (fr) * | 1999-05-28 | 2000-12-07 | Achim Limbeck | Trepan, procede de forage et extraction d'eau chaude |
-
0
- BE BE421995D patent/BE421995A/nl unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000073617A1 (fr) * | 1999-05-28 | 2000-12-07 | Achim Limbeck | Trepan, procede de forage et extraction d'eau chaude |
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