FR2173839A1 - - Google Patents
Info
- Publication number
- FR2173839A1 FR2173839A1 FR7207765A FR7207765A FR2173839A1 FR 2173839 A1 FR2173839 A1 FR 2173839A1 FR 7207765 A FR7207765 A FR 7207765A FR 7207765 A FR7207765 A FR 7207765A FR 2173839 A1 FR2173839 A1 FR 2173839A1
- 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.)
- Pending
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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous 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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7207765A FR2173839A1 (enExample) | 1972-02-29 | 1972-02-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7207765A FR2173839A1 (enExample) | 1972-02-29 | 1972-02-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2173839A1 true FR2173839A1 (enExample) | 1973-10-12 |
Family
ID=9094715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7207765A Pending FR2173839A1 (enExample) | 1972-02-29 | 1972-02-29 |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2173839A1 (enExample) |
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1972
- 1972-02-29 FR FR7207765A patent/FR2173839A1/fr active Pending