FR2047983B1 - - Google Patents
Info
- Publication number
- FR2047983B1 FR2047983B1 FR707023407A FR7023407A FR2047983B1 FR 2047983 B1 FR2047983 B1 FR 2047983B1 FR 707023407 A FR707023407 A FR 707023407A FR 7023407 A FR7023407 A FR 7023407A FR 2047983 B1 FR2047983 B1 FR 2047983B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
- E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP44050423A JPS5020522B1 (sv) | 1969-06-27 | 1969-06-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2047983A1 FR2047983A1 (sv) | 1971-03-19 |
FR2047983B1 true FR2047983B1 (sv) | 1973-05-25 |
Family
ID=12858440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR707023407A Expired FR2047983B1 (sv) | 1969-06-27 | 1970-06-24 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3661219A (sv) |
JP (1) | JPS5020522B1 (sv) |
FR (1) | FR2047983B1 (sv) |
SE (1) | SE393155B (sv) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5367438U (sv) * | 1976-11-09 | 1978-06-06 | ||
JPS57179946U (sv) * | 1981-05-09 | 1982-11-15 | ||
JPS57199451U (sv) * | 1981-05-09 | 1982-12-18 | ||
US4497382A (en) * | 1983-03-24 | 1985-02-05 | Komitet Po Goelogica | Retractable core drill bit |
FR2575785B1 (fr) * | 1985-01-04 | 1987-12-11 | Rech Geolog Miniere | Appareil de forage equipe d'un dispositif permettant le changement de l'outil de forage sans avoir a remonter le train de tiges et comportant un dispositif d'alesage expansible |
US5460231A (en) * | 1994-08-19 | 1995-10-24 | Collins; James S. | Device and method for augering a conical hole in solid media |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US473907A (en) * | 1892-05-03 | Milan c | ||
US1766253A (en) * | 1922-09-08 | 1930-06-24 | Kennedye Corp | Drilling tool |
US2239996A (en) * | 1936-05-25 | 1941-04-29 | Chappell Drilling Equipment Co | Drilling apparatus |
US2771275A (en) * | 1952-01-29 | 1956-11-20 | Exxon Research Engineering Co | Hard formation retractable drill bit |
US3050142A (en) * | 1959-07-06 | 1962-08-21 | Kammerer | Retrievable drilling apparatus for well bores |
US3050143A (en) * | 1959-07-06 | 1962-08-21 | Jr Archer W Kammerer | Retrievable well bore drilling apparatus |
-
1969
- 1969-06-27 JP JP44050423A patent/JPS5020522B1/ja active Pending
-
1970
- 1970-06-09 US US44731A patent/US3661219A/en not_active Expired - Lifetime
- 1970-06-24 FR FR707023407A patent/FR2047983B1/fr not_active Expired
- 1970-06-26 SE SE7008891A patent/SE393155B/sv unknown
Also Published As
Publication number | Publication date |
---|---|
FR2047983A1 (sv) | 1971-03-19 |
US3661219A (en) | 1972-05-09 |
JPS5020522B1 (sv) | 1975-07-16 |
SE393155B (sv) | 1977-05-02 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |