FR2523202B1 - - Google Patents
Info
- Publication number
- FR2523202B1 FR2523202B1 FR8204077A FR8204077A FR2523202B1 FR 2523202 B1 FR2523202 B1 FR 2523202B1 FR 8204077 A FR8204077 A FR 8204077A FR 8204077 A FR8204077 A FR 8204077A FR 2523202 B1 FR2523202 B1 FR 2523202B1
- Authority
- FR
- France
- Prior art keywords
- air
- piston
- pressure
- bit
- compressed air
- 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
- 238000005553 drilling Methods 0.000 abstract 2
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
- E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
-
- 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
- E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Jib Cranes (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
1. Down-the-hole pneumatic drilling hammer, which comprises a tubular body (1) supplied with compressed air and carrying a drilling bit (3) and in which a ramming piston (21) is made to perform a reciprocating movement inside an internal sleeve (7) forming a casing by means of a mechanism for distributing compressed air alternately above and below the ramming piston in such a way that it cyclically strikes the bit and rises again, characterised in that the hammer has two separate sources (16, 18) of compressed air, a high-pressure one and a low-pressure one respectively, the distribution mechanism ensuring alternately the supply of high-pressure air to the upper chamber (51) above the piston (21) so as to project the latter towards the bit, while the lower chamber (50) allows the air to escape, and the supply of low-pressure air to the lower chamber (50) so as to cause the piston (21) to rise again, while the upper chamber (51) allows the air to escape.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8204077A FR2523202A1 (en) | 1982-03-11 | 1982-03-11 | HAMMER WITH PNEUMATIC DRIVE OF THE TYPE "FOND-DE-TROU" |
EP83400495A EP0088705B1 (en) | 1982-03-11 | 1983-03-11 | Down-the-hole pneumatic hammer |
AT83400495T ATE16954T1 (en) | 1982-03-11 | 1983-03-11 | DOWNHOLE PNEUMATIC IMPACT DRIVE. |
DE8383400495T DE3361460D1 (en) | 1982-03-11 | 1983-03-11 | Down-the-hole pneumatic hammer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8204077A FR2523202A1 (en) | 1982-03-11 | 1982-03-11 | HAMMER WITH PNEUMATIC DRIVE OF THE TYPE "FOND-DE-TROU" |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2523202A1 FR2523202A1 (en) | 1983-09-16 |
FR2523202B1 true FR2523202B1 (en) | 1984-04-13 |
Family
ID=9271855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8204077A Granted FR2523202A1 (en) | 1982-03-11 | 1982-03-11 | HAMMER WITH PNEUMATIC DRIVE OF THE TYPE "FOND-DE-TROU" |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0088705B1 (en) |
AT (1) | ATE16954T1 (en) |
DE (1) | DE3361460D1 (en) |
FR (1) | FR2523202A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5957220A (en) * | 1995-10-17 | 1999-09-28 | Dresser-Rand Company | Percussion drill assembly |
US5662180A (en) * | 1995-10-17 | 1997-09-02 | Dresser-Rand Company | Percussion drill assembly |
US7040417B2 (en) | 2003-12-11 | 2006-05-09 | Cct Technologies, L.L.C. | Drilling systems |
CN106320983B (en) * | 2016-11-08 | 2018-12-18 | 贵州高峰石油机械股份有限公司 | A kind of ultra-deep-water is with boring cased method and device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2044939A5 (en) * | 1969-05-23 | 1971-02-26 | Stenuick Freres | |
US4054180A (en) * | 1976-02-09 | 1977-10-18 | Reed Tool Company | Impact drilling tool having a shuttle valve |
US4084647A (en) * | 1976-07-01 | 1978-04-18 | William Lister | Pneumatic percussion hammer |
ES453523A1 (en) * | 1976-11-20 | 1977-11-16 | Miralles Valle Charles | Improvements in the fund hammers for rock drills and soils. (Machine-translation by Google Translate, not legally binding) |
FR2424408A1 (en) * | 1978-04-24 | 1979-11-23 | Stenuick Freres | PERFORATION SIZE FOR PNEUMATIC BOTTOM-OF-HOLE HAMMER |
EP0022865B1 (en) * | 1978-12-15 | 1984-08-01 | Furukawakogyo Co.Ltd | Hydraulically-driven downhole drill |
-
1982
- 1982-03-11 FR FR8204077A patent/FR2523202A1/en active Granted
-
1983
- 1983-03-11 AT AT83400495T patent/ATE16954T1/en not_active IP Right Cessation
- 1983-03-11 DE DE8383400495T patent/DE3361460D1/en not_active Expired
- 1983-03-11 EP EP83400495A patent/EP0088705B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0088705B1 (en) | 1985-12-11 |
EP0088705A1 (en) | 1983-09-14 |
ATE16954T1 (en) | 1985-12-15 |
DE3361460D1 (en) | 1986-01-23 |
FR2523202A1 (en) | 1983-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |