BE389403A - - Google Patents
Info
- Publication number
- BE389403A BE389403A BE389403DA BE389403A BE 389403 A BE389403 A BE 389403A BE 389403D A BE389403D A BE 389403DA BE 389403 A BE389403 A BE 389403A
- Authority
- BE
- Belgium
- Prior art keywords
- nut
- passage
- advancement
- oil
- perforator
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims description 19
- 239000011888 foil Substances 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 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
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
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 |
|---|---|
| BE389403A true BE389403A (de) |
Family
ID=57523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE389403D BE389403A (de) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE389403A (de) |
-
0
- BE BE389403D patent/BE389403A/fr unknown
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