FI57824C - Foerfarande foer orientering av borren vid uppaotriktad borrning vid brytning och/eller foer utfoerande av elektrisk informationsoeverfoering - Google Patents
Foerfarande foer orientering av borren vid uppaotriktad borrning vid brytning och/eller foer utfoerande av elektrisk informationsoeverfoering Download PDFInfo
- Publication number
- FI57824C FI57824C FI760716A FI760716A FI57824C FI 57824 C FI57824 C FI 57824C FI 760716 A FI760716 A FI 760716A FI 760716 A FI760716 A FI 760716A FI 57824 C FI57824 C FI 57824C
- Authority
- FI
- Finland
- Prior art keywords
- drill rod
- frequency
- drilling
- communication
- induction coil
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims description 19
- 238000005553 drilling Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 230000006698 induction Effects 0.000 claims description 15
- 230000005291 magnetic effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000001939 inductive effect Effects 0.000 claims description 7
- 239000003302 ferromagnetic material Substances 0.000 claims description 4
- 239000011435 rock Substances 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 229940030850 avar Drugs 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D3/00—Raising shafts, i.e. working upwards from the bottom
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Near-Field Transmission Systems (AREA)
- Earth Drilling (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI760716A FI57824C (fi) | 1976-03-17 | 1976-03-17 | Foerfarande foer orientering av borren vid uppaotriktad borrning vid brytning och/eller foer utfoerande av elektrisk informationsoeverfoering |
| SE7703030A SE7703030L (sv) | 1976-03-17 | 1977-03-17 | Forfarande for bestemning av riktningen av borren och/eller for elektrisk overforing av information vid stigborrning i samband med brytning |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI760716 | 1976-03-17 | ||
| FI760716A FI57824C (fi) | 1976-03-17 | 1976-03-17 | Foerfarande foer orientering av borren vid uppaotriktad borrning vid brytning och/eller foer utfoerande av elektrisk informationsoeverfoering |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI760716A7 FI760716A7 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-09-18 |
| FI57824B FI57824B (fi) | 1980-06-30 |
| FI57824C true FI57824C (fi) | 1980-10-10 |
Family
ID=8509841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI760716A FI57824C (fi) | 1976-03-17 | 1976-03-17 | Foerfarande foer orientering av borren vid uppaotriktad borrning vid brytning och/eller foer utfoerande av elektrisk informationsoeverfoering |
Country Status (2)
| Country | Link |
|---|---|
| FI (1) | FI57824C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
| SE (1) | SE7703030L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1976
- 1976-03-17 FI FI760716A patent/FI57824C/fi not_active IP Right Cessation
-
1977
- 1977-03-17 SE SE7703030A patent/SE7703030L/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE7703030L (sv) | 1977-09-18 |
| FI57824B (fi) | 1980-06-30 |
| FI760716A7 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1977-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed |
Owner name: OY TAMPELLA AB |