SE7501020L - Stotborranordning for haldrivning i marken - Google Patents
Stotborranordning for haldrivning i markenInfo
- Publication number
- SE7501020L SE7501020L SE7501020A SE7501020A SE7501020L SE 7501020 L SE7501020 L SE 7501020L SE 7501020 A SE7501020 A SE 7501020A SE 7501020 A SE7501020 A SE 7501020A SE 7501020 L SE7501020 L SE 7501020L
- Authority
- SE
- Sweden
- Prior art keywords
- stot
- ground
- drilling device
- half driving
- driving
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title 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
- E21B7/26—Drilling without earth removal, e.g. with self-propelled burrowing devices
-
- 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)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7501020A SE387998B (sv) | 1975-01-30 | 1975-01-30 | Stotborranordning for haldrivning i marken |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7501020A SE387998B (sv) | 1975-01-30 | 1975-01-30 | Stotborranordning for haldrivning i marken |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7501020L true SE7501020L (sv) | 1976-08-02 |
SE387998B SE387998B (sv) | 1976-09-20 |
Family
ID=20323546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7501020A SE387998B (sv) | 1975-01-30 | 1975-01-30 | Stotborranordning for haldrivning i marken |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE387998B (sv) |
-
1975
- 1975-01-30 SE SE7501020A patent/SE387998B/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE387998B (sv) | 1976-09-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7501020-7 Effective date: 19920806 Format of ref document f/p: F |