EP0799966A3 - Trépan de forage à percussion - Google Patents
Trépan de forage à percussion Download PDFInfo
- Publication number
- EP0799966A3 EP0799966A3 EP97104925A EP97104925A EP0799966A3 EP 0799966 A3 EP0799966 A3 EP 0799966A3 EP 97104925 A EP97104925 A EP 97104925A EP 97104925 A EP97104925 A EP 97104925A EP 0799966 A3 EP0799966 A3 EP 0799966A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- drill bit
- drilling
- flushing
- percussive drilling
- distance
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title abstract 4
- 238000011010 flushing procedure Methods 0.000 abstract 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000007704 transition Effects 0.000 abstract 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
- E21B10/36—Percussion drill bits
- E21B10/40—Percussion drill bits with leading portion
-
- 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
- E21B10/36—Percussion drill bits
- E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
- E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit
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 (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19613140 | 1996-04-02 | ||
DE19613140 | 1996-04-02 | ||
DE19619194A DE19619194A1 (de) | 1996-04-02 | 1996-05-11 | Bohrkrone für das schlagende Bohren |
DE19619194 | 1996-05-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0799966A2 EP0799966A2 (fr) | 1997-10-08 |
EP0799966A3 true EP0799966A3 (fr) | 1999-02-03 |
Family
ID=26024411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97104925A Withdrawn EP0799966A3 (fr) | 1996-04-02 | 1997-03-22 | Trépan de forage à percussion |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP0799966A3 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1061878B1 (fr) | 1998-03-13 | 2004-11-03 | The Procter & Gamble Company | Structures absorbantes comprenant des elements de stockage de fluide presentant une capacite amelioree de sechage des elements de distribution |
US6713661B1 (en) | 1998-04-28 | 2004-03-30 | The Procter & Gamble Company | Absorbent articles providing improved fit when wet |
JP3686383B2 (ja) | 2002-02-22 | 2005-08-24 | 本田技研工業株式会社 | プラントの制御装置 |
FR2844312B1 (fr) | 2002-09-05 | 2006-04-28 | Centre Nat Rech Scient | Machine tournante a capsulisme |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2824958A1 (de) * | 1978-06-07 | 1979-12-13 | Willi Wader Fa | Bohrstange mit angeschmiedeter bohrkrone mit mehr als vier schneiden zum anstechen von hochoefen |
EP0122103A1 (fr) * | 1983-04-06 | 1984-10-17 | Hughes Douglas Harrison | Perforatrice pour tunnels |
EP0324150A1 (fr) * | 1988-01-12 | 1989-07-19 | Hawera Probst GmbH + Co. | Outil de forage |
WO1994024405A1 (fr) * | 1993-04-08 | 1994-10-27 | Sandvik Ab | Foreuse a percussion a circulation inversee et foret pour celle-ci |
DE4326000A1 (de) * | 1993-08-03 | 1995-02-09 | Srt Rock Tools Handels Und Pro | Stiftbohrkrone für das schlagende Bohren |
-
1997
- 1997-03-22 EP EP97104925A patent/EP0799966A3/fr not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2824958A1 (de) * | 1978-06-07 | 1979-12-13 | Willi Wader Fa | Bohrstange mit angeschmiedeter bohrkrone mit mehr als vier schneiden zum anstechen von hochoefen |
EP0122103A1 (fr) * | 1983-04-06 | 1984-10-17 | Hughes Douglas Harrison | Perforatrice pour tunnels |
EP0324150A1 (fr) * | 1988-01-12 | 1989-07-19 | Hawera Probst GmbH + Co. | Outil de forage |
WO1994024405A1 (fr) * | 1993-04-08 | 1994-10-27 | Sandvik Ab | Foreuse a percussion a circulation inversee et foret pour celle-ci |
DE4326000A1 (de) * | 1993-08-03 | 1995-02-09 | Srt Rock Tools Handels Und Pro | Stiftbohrkrone für das schlagende Bohren |
Also Published As
Publication number | Publication date |
---|---|
EP0799966A2 (fr) | 1997-10-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE FR LI LU |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR LI LU |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19990804 |