FR499920A - Perforation improvements - Google Patents
Perforation improvementsInfo
- Publication number
- FR499920A FR499920A FR499920A FR499920DA FR499920A FR 499920 A FR499920 A FR 499920A FR 499920 A FR499920 A FR 499920A FR 499920D A FR499920D A FR 499920DA FR 499920 A FR499920 A FR 499920A
- Authority
- FR
- France
- Prior art keywords
- perforation
- perforation improvements
- Prior art date
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB499920X | 1918-07-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR499920A true FR499920A (en) | 1920-02-26 |
Family
ID=1534880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR499920A Expired FR499920A (en) | 1918-07-26 | 1919-05-21 | Perforation improvements |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR499920A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1057547B (en) * | 1949-08-27 | 1959-05-21 | Hemscheidt Maschf Hermann | Dust extractor with suction head |
-
1919
- 1919-05-21 FR FR499920A patent/FR499920A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1057547B (en) * | 1949-08-27 | 1959-05-21 | Hemscheidt Maschf Hermann | Dust extractor with suction head |
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