SE7808550L - Insats for en borr - Google Patents
Insats for en borrInfo
- Publication number
- SE7808550L SE7808550L SE7808550A SE7808550A SE7808550L SE 7808550 L SE7808550 L SE 7808550L SE 7808550 A SE7808550 A SE 7808550A SE 7808550 A SE7808550 A SE 7808550A SE 7808550 L SE7808550 L SE 7808550L
- Authority
- SE
- Sweden
- Prior art keywords
- drill
- effort
- Prior art date
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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
- E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts
-
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
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 |
---|---|---|---|
US83400977A | 1977-09-19 | 1977-09-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7808550L true SE7808550L (sv) | 1979-03-20 |
Family
ID=25265866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7808550A SE7808550L (sv) | 1977-09-19 | 1978-08-10 | Insats for en borr |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2836474A1 (sv) |
FR (1) | FR2403446A1 (sv) |
SE (1) | SE7808550L (sv) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE8307010L (sv) * | 1983-12-19 | 1985-06-20 | Santrade Ltd | Stift for slagborrande borrkrona och borrkrona derfor |
SE507098C2 (sv) * | 1994-10-12 | 1998-03-30 | Sandvik Ab | Stift av hårdmetall och bergborrkrona för slående borrning |
CN113153164B (zh) * | 2021-04-20 | 2024-02-23 | 金沙县仁德钻探工具有限公司 | 一种四翼平顶八齿钻头 |
-
1978
- 1978-08-10 SE SE7808550A patent/SE7808550L/sv unknown
- 1978-08-21 DE DE19782836474 patent/DE2836474A1/de not_active Withdrawn
- 1978-08-29 FR FR7824897A patent/FR2403446A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2403446A1 (fr) | 1979-04-13 |
DE2836474A1 (de) | 1979-03-29 |
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