NL82584C - - Google Patents
Info
- Publication number
- NL82584C NL82584C NL82584DA NL82584C NL 82584 C NL82584 C NL 82584C NL 82584D A NL82584D A NL 82584DA NL 82584 C NL82584 C NL 82584C
- Authority
- NL
- Netherlands
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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
- E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL82584C true NL82584C (en:Method) | 1900-01-01 |
Family
ID=1829977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL82584D NL82584C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL82584C (en:Method) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2341032A1 (fr) * | 1976-02-10 | 1977-09-09 | Schmidt Paul | Dispositif auxiliaire de demarrage d'appareils de forage autopropulses |
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0
- NL NL82584D patent/NL82584C/xx active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2341032A1 (fr) * | 1976-02-10 | 1977-09-09 | Schmidt Paul | Dispositif auxiliaire de demarrage d'appareils de forage autopropulses |