FR2365021B1 - - Google Patents
Info
- Publication number
- FR2365021B1 FR2365021B1 FR7627871A FR7627871A FR2365021B1 FR 2365021 B1 FR2365021 B1 FR 2365021B1 FR 7627871 A FR7627871 A FR 7627871A FR 7627871 A FR7627871 A FR 7627871A FR 2365021 B1 FR2365021 B1 FR 2365021B1
- 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
- E21B10/08—Roller bits
- E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7627871A FR2365021A1 (fr) | 1976-09-16 | 1976-09-16 | Trepan a trois molettes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7627871A FR2365021A1 (fr) | 1976-09-16 | 1976-09-16 | Trepan a trois molettes |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2365021A1 FR2365021A1 (fr) | 1978-04-14 |
FR2365021B1 true FR2365021B1 (fr) | 1979-01-12 |
Family
ID=9177749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7627871A Granted FR2365021A1 (fr) | 1976-09-16 | 1976-09-16 | Trepan a trois molettes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2365021A1 (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3112800A (en) * | 1959-08-28 | 1963-12-03 | Phillips Petroleum Co | Method of drilling with high velocity jet cutter rock bit |
US3137354A (en) * | 1960-01-11 | 1964-06-16 | Reed Roller Bit Co | Drill bit nozzles |
US3329222A (en) * | 1964-11-23 | 1967-07-04 | Smith Ind International Inc | Jet bit |
-
1976
- 1976-09-16 FR FR7627871A patent/FR2365021A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2365021A1 (fr) | 1978-04-14 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |