FR2167952B1 - - Google Patents
Info
- Publication number
- FR2167952B1 FR2167952B1 FR7300875A FR7300875A FR2167952B1 FR 2167952 B1 FR2167952 B1 FR 2167952B1 FR 7300875 A FR7300875 A FR 7300875A FR 7300875 A FR7300875 A FR 7300875A FR 2167952 B1 FR2167952 B1 FR 2167952B1
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUKO2484A HU165213B (cs) | 1972-01-11 | 1972-01-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2167952A1 FR2167952A1 (cs) | 1973-08-24 |
| FR2167952B1 true FR2167952B1 (cs) | 1978-09-29 |
Family
ID=10997906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7300875A Expired FR2167952B1 (cs) | 1972-01-11 | 1973-01-11 |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE827303Q (cs) |
| CA (1) | CA976952A (cs) |
| DE (1) | DE2301194C3 (cs) |
| FR (1) | FR2167952B1 (cs) |
| GB (1) | GB1415981A (cs) |
| HU (1) | HU165213B (cs) |
| IT (1) | IT978083B (cs) |
| YU (1) | YU34598B (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871037A (en) * | 1988-09-15 | 1989-10-03 | Amoco Corporation | Excavation apparatus, system and method |
| CN104612684A (zh) * | 2014-12-15 | 2015-05-13 | 中国矿业大学 | 一种超声冲击截齿 |
-
1972
- 1972-01-11 HU HUKO2484A patent/HU165213B/hu not_active IP Right Cessation
-
1973
- 1973-01-10 GB GB126073A patent/GB1415981A/en not_active Expired
- 1973-01-10 IT IT19122/73A patent/IT978083B/it active
- 1973-01-11 CA CA161,047A patent/CA976952A/en not_active Expired
- 1973-01-11 YU YU58/73A patent/YU34598B/xx unknown
- 1973-01-11 DE DE2301194A patent/DE2301194C3/de not_active Expired
- 1973-01-11 FR FR7300875A patent/FR2167952B1/fr not_active Expired
-
1975
- 1975-03-28 BE BE154869A patent/BE827303Q/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| YU5873A (en) | 1979-04-30 |
| DE2301194A1 (de) | 1973-07-26 |
| IT978083B (it) | 1974-09-20 |
| YU34598B (en) | 1979-10-31 |
| FR2167952A1 (cs) | 1973-08-24 |
| GB1415981A (en) | 1975-12-03 |
| HU165213B (cs) | 1974-07-27 |
| CA976952A (en) | 1975-10-28 |
| DE2301194B2 (de) | 1975-05-22 |
| DE2301194C3 (de) | 1976-01-02 |
| BE827303Q (fr) | 1975-07-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |