BE447757A - - Google Patents
Info
- Publication number
- BE447757A BE447757A BE447757DA BE447757A BE 447757 A BE447757 A BE 447757A BE 447757D A BE447757D A BE 447757DA BE 447757 A BE447757 A BE 447757A
- Authority
- BE
- Belgium
- Prior art keywords
- bits
- shaft
- staged
- cutters
- middle bit
- Prior art date
Links
- 238000009527 percussion Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002689 soil 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
- E21B10/30—Longitudinal axis roller reamers, e.g. reamer stabilisers
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)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE447757A true BE447757A (enrdf_load_html_response) |
Family
ID=103514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE447757D BE447757A (enrdf_load_html_response) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE447757A (enrdf_load_html_response) |
-
0
- BE BE447757D patent/BE447757A/fr unknown
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