BE490420A - - Google Patents
Info
- Publication number
- BE490420A BE490420A BE490420DA BE490420A BE 490420 A BE490420 A BE 490420A BE 490420D A BE490420D A BE 490420DA BE 490420 A BE490420 A BE 490420A
- Authority
- BE
- Belgium
- Prior art keywords
- branch
- drilling tool
- inclination
- angle
- branches
- Prior art date
Links
- 238000005553 drilling Methods 0.000 claims description 20
- 239000003245 coal Substances 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 210000000887 face Anatomy 0.000 description 3
- 210000001331 nose Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000005061 slumber Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 239000011800 void material Substances 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
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
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)
- Drilling Tools (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE490420A true BE490420A (cs) |
Family
ID=135135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE490420D BE490420A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE490420A (cs) |
-
0
- BE BE490420D patent/BE490420A/fr unknown
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