NL6618252A - - Google Patents
Info
- Publication number
- NL6618252A NL6618252A NL6618252A NL6618252A NL6618252A NL 6618252 A NL6618252 A NL 6618252A NL 6618252 A NL6618252 A NL 6618252A NL 6618252 A NL6618252 A NL 6618252A NL 6618252 A NL6618252 A NL 6618252A
- Authority
- NL
- Netherlands
Links
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
- E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
-
- 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
- E21B11/00—Other drilling tools
- E21B11/02—Boring rams
-
- 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
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH0059028 | 1966-04-06 | ||
| DEH0060280 | 1966-08-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6618252A true NL6618252A (en:Method) | 1967-10-09 |
Family
ID=25980408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6618252A NL6618252A (en:Method) | 1966-04-06 | 1966-12-28 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3430717A (en:Method) |
| AT (1) | AT263668B (en:Method) |
| BE (1) | BE692019A (en:Method) |
| CH (1) | CH459075A (en:Method) |
| DE (2) | DE1634388B1 (en:Method) |
| DK (1) | DK111171B (en:Method) |
| FR (1) | FR1513620A (en:Method) |
| GB (1) | GB1133803A (en:Method) |
| NL (1) | NL6618252A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS514650B1 (en:Method) * | 1970-03-16 | 1976-02-13 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US221646A (en) * | 1879-11-11 | Improvement in rock-drills | ||
| US281922A (en) * | 1883-07-24 | Rock-drill | ||
| US230863A (en) * | 1880-08-10 | Rock-drill | ||
| US711506A (en) * | 1901-08-23 | 1902-10-21 | William E Johnston | Drill for oil or other wells. |
| GB256150A (en) * | 1926-03-16 | 1926-08-05 | August Wolfsholz | Improvements in the construction of concrete piles |
| US1888282A (en) * | 1929-11-19 | 1932-11-22 | Miller Anthony Paul | Method of installing piling |
| DE544182C (de) * | 1930-12-03 | 1932-02-15 | Georg Rothgiesser | Abbauvorrichtung fuer unloesliche Massen, insbesondere Ton, durch Ausspuelen von Bohrloechern |
| US2011938A (en) * | 1932-07-18 | 1935-08-20 | Miller Anthony Paul | Excavating tool |
| US2552939A (en) * | 1948-06-05 | 1951-05-15 | Elmo L Condra | Wire line cleanout tool for oil wells |
| DE851488C (de) * | 1951-03-22 | 1952-10-06 | Braunkohlen Und Briketwerke Ro | Verfahren und Vorrichtung zur Gewinnung und Foerderung von Mineralien |
-
1966
- 1966-04-06 DE DE19661634388 patent/DE1634388B1/de active Pending
- 1966-08-19 DE DE19661634392 patent/DE1634392A1/de active Pending
- 1966-12-19 AT AT1168066A patent/AT263668B/de active
- 1966-12-19 CH CH1832966A patent/CH459075A/de unknown
- 1966-12-20 GB GB56923/66A patent/GB1133803A/en not_active Expired
- 1966-12-28 NL NL6618252A patent/NL6618252A/xx unknown
- 1966-12-28 DK DK671966AA patent/DK111171B/da unknown
- 1966-12-30 BE BE692019A patent/BE692019A/xx unknown
-
1967
- 1967-01-09 US US609274A patent/US3430717A/en not_active Expired - Lifetime
- 1967-01-18 FR FR91583A patent/FR1513620A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK111171B (da) | 1968-06-24 |
| DE1634388B1 (de) | 1970-05-27 |
| US3430717A (en) | 1969-03-04 |
| FR1513620A (fr) | 1968-02-16 |
| CH459075A (de) | 1968-06-30 |
| BE692019A (en:Method) | 1967-06-30 |
| AT263668B (de) | 1968-07-25 |
| GB1133803A (en) | 1968-11-20 |
| DE1634392A1 (de) | 1970-12-17 |