FR2353702A1 - ROTATIONAL DRILLING TREPAN - Google Patents
ROTATIONAL DRILLING TREPANInfo
- Publication number
- FR2353702A1 FR2353702A1 FR7716479A FR7716479A FR2353702A1 FR 2353702 A1 FR2353702 A1 FR 2353702A1 FR 7716479 A FR7716479 A FR 7716479A FR 7716479 A FR7716479 A FR 7716479A FR 2353702 A1 FR2353702 A1 FR 2353702A1
- Authority
- FR
- France
- Prior art keywords
- rotational drilling
- trepan
- drilling trepan
- rotational
- drilling
- 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.)
- Granted
Links
- 241000425571 Trepanes Species 0.000 title 1
- 238000005553 drilling Methods 0.000 title 1
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
- E21B10/58—Chisel-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
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 |
---|---|---|---|
GB2279676A GB1546198A (en) | 1976-06-02 | 1976-06-02 | Rotary earth boring bit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2353702A1 true FR2353702A1 (en) | 1977-12-30 |
FR2353702B1 FR2353702B1 (en) | 1983-01-14 |
Family
ID=10185200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7716479A Granted FR2353702A1 (en) | 1976-06-02 | 1977-05-31 | ROTATIONAL DRILLING TREPAN |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE855238A (en) |
CA (1) | CA1063095A (en) |
DE (1) | DE2724547A1 (en) |
FR (1) | FR2353702A1 (en) |
GB (1) | GB1546198A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3039633C2 (en) * | 1980-10-21 | 1983-08-18 | Christensen, Inc., 84115 Salt Lake City, Utah | Rotary drill bits, in particular for deep drilling |
GB2185506B (en) * | 1986-01-21 | 1989-03-30 | Shell Int Research | Rotary drill bit |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2365941A (en) * | 1942-08-31 | 1944-12-26 | Shell Dev | Oil well drill bit |
DE1054039B (en) * | 1958-02-03 | 1959-04-02 | Salzgitter Maschinen Ag | Drill bits |
FR1265943A (en) * | 1960-05-25 | 1961-07-07 | Europ De Turboforage Soc | Drill bit for soil drilling |
US3153458A (en) * | 1962-10-08 | 1964-10-20 | Drilling & Service Inc | Blade-type drill bit |
US3191698A (en) * | 1962-05-17 | 1965-06-29 | Drilling & Service Inc | Blade-type drill bit |
-
1976
- 1976-06-02 GB GB2279676A patent/GB1546198A/en not_active Expired
-
1977
- 1977-03-29 CA CA274,965A patent/CA1063095A/en not_active Expired
- 1977-05-31 BE BE178073A patent/BE855238A/en not_active IP Right Cessation
- 1977-05-31 DE DE19772724547 patent/DE2724547A1/en not_active Withdrawn
- 1977-05-31 FR FR7716479A patent/FR2353702A1/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2365941A (en) * | 1942-08-31 | 1944-12-26 | Shell Dev | Oil well drill bit |
DE1054039B (en) * | 1958-02-03 | 1959-04-02 | Salzgitter Maschinen Ag | Drill bits |
FR1265943A (en) * | 1960-05-25 | 1961-07-07 | Europ De Turboforage Soc | Drill bit for soil drilling |
US3191698A (en) * | 1962-05-17 | 1965-06-29 | Drilling & Service Inc | Blade-type drill bit |
US3153458A (en) * | 1962-10-08 | 1964-10-20 | Drilling & Service Inc | Blade-type drill bit |
Also Published As
Publication number | Publication date |
---|---|
BE855238A (en) | 1977-11-30 |
DE2724547A1 (en) | 1977-12-15 |
FR2353702B1 (en) | 1983-01-14 |
CA1063095A (en) | 1979-09-25 |
GB1546198A (en) | 1979-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |