SE8306338L - DEVICE FOR INDICATING THE REPLACEMENT RATE OF CORE PIPES DURING MOUNTAIN DRILLING - Google Patents
DEVICE FOR INDICATING THE REPLACEMENT RATE OF CORE PIPES DURING MOUNTAIN DRILLINGInfo
- Publication number
- SE8306338L SE8306338L SE8306338A SE8306338A SE8306338L SE 8306338 L SE8306338 L SE 8306338L SE 8306338 A SE8306338 A SE 8306338A SE 8306338 A SE8306338 A SE 8306338A SE 8306338 L SE8306338 L SE 8306338L
- Authority
- SE
- Sweden
- Prior art keywords
- piston
- hole
- lower level
- length
- core barrel
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title abstract 3
- IHPYMWDTONKSCO-UHFFFAOYSA-N 2,2'-piperazine-1,4-diylbisethanesulfonic acid Chemical compound OS(=O)(=O)CCN1CCN(CCS(O)(=O)=O)CC1 IHPYMWDTONKSCO-UHFFFAOYSA-N 0.000 title 1
- 239000007990 PIPES buffer Substances 0.000 title 1
- 239000011435 rock Substances 0.000 abstract 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention refers to a device for the indication of the coefficient of fullness of core barrels during rock drilling using drilling equipment with a rotary motor, which hangs in the drill hole under ground level, in a tube-shaped carrier device, and where the driving medium to the rotary motor is brought from ground level via the carrier device, at which the device is composed of a drill wire connected into a feeder cylinder (6) with an axial hole going through (18), through which a feed piston (15) under the influence of the pressure medium brought through the hole, is movable between an upper (17) and a lower level (18), with the feed piston's stroke length the same as the core barrel or that the core barrel is alike with the integer multiple of the length of the piston stroke, as well as that the cylinder shows a hole (20) in the cylinder wall (19) located at a distance over the said lower level (18) somewhat exceeding the length of the piston, at which as an indication of the core barrel's coefficient of fullness the decrease in pressure in the pump media is used, this decrease is the result of the piston reaching its lower level (18).<IMAGE>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8306338A SE440384B (en) | 1983-11-17 | 1983-11-17 | Device for indication of the coefficient of fullness of core barrels during rock drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8306338A SE440384B (en) | 1983-11-17 | 1983-11-17 | Device for indication of the coefficient of fullness of core barrels during rock drilling |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE8306338D0 SE8306338D0 (en) | 1983-11-17 |
| SE8306338L true SE8306338L (en) | 1985-05-18 |
| SE440384B SE440384B (en) | 1985-07-29 |
Family
ID=20353363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8306338A SE440384B (en) | 1983-11-17 | 1983-11-17 | Device for indication of the coefficient of fullness of core barrels during rock drilling |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE440384B (en) |
-
1983
- 1983-11-17 SE SE8306338A patent/SE440384B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE8306338D0 (en) | 1983-11-17 |
| SE440384B (en) | 1985-07-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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