FR2456830B1 - - Google Patents
Info
- Publication number
- FR2456830B1 FR2456830B1 FR8008504A FR8008504A FR2456830B1 FR 2456830 B1 FR2456830 B1 FR 2456830B1 FR 8008504 A FR8008504 A FR 8008504A FR 8008504 A FR8008504 A FR 8008504A FR 2456830 B1 FR2456830 B1 FR 2456830B1
- Authority
- FR
- France
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/18—Anchoring or feeding in the borehole
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 |
|---|---|---|---|
| DE19792920049 DE2920049A1 (de) | 1979-05-18 | 1979-05-18 | Bohrvorrichtung fuer das erdbohren |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2456830A1 FR2456830A1 (fr) | 1980-12-12 |
| FR2456830B1 true FR2456830B1 (it) | 1983-05-06 |
Family
ID=6071028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8008504A Granted FR2456830A1 (fr) | 1979-05-18 | 1980-04-16 | Dispositif de forage terrestre comportant un appui dans le trou de forage |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5816436B2 (it) |
| DE (1) | DE2920049A1 (it) |
| FR (1) | FR2456830A1 (it) |
| GB (1) | GB2048339B (it) |
| IT (2) | IT8053155V0 (it) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO179261C (no) * | 1992-12-16 | 1996-09-04 | Rogalandsforskning | Anordning for boring av hull i jordskorpen, særlig for boring av oljebrönner |
| SE501283C2 (sv) * | 1993-05-06 | 1995-01-09 | Lars Sterner | Bergborrmaskin |
| SE508950C2 (sv) * | 1993-12-29 | 1998-11-16 | Lars Liw | Styrverktyg för bergborrning |
| US6464003B2 (en) | 2000-05-18 | 2002-10-15 | Western Well Tool, Inc. | Gripper assembly for downhole tractors |
| US6286614B1 (en) * | 2000-03-27 | 2001-09-11 | Halliburton Energy Services, Inc. | Motion compensator for drilling from a floater |
| US8245796B2 (en) | 2000-12-01 | 2012-08-21 | Wwt International, Inc. | Tractor with improved valve system |
| FR2832454B1 (fr) * | 2001-11-20 | 2004-07-09 | Cie Du Sol | Equipement de forage de puits verticaux |
| DE10336315A1 (de) * | 2003-08-07 | 2005-03-03 | Helmut Hross | Vertikalbohrvorrichtung sowie Verfahren zur Erstellung im wesentlichen vertikal ausgerichteter Grossbohrungen in Grundformationen |
| US7392859B2 (en) | 2004-03-17 | 2008-07-01 | Western Well Tool, Inc. | Roller link toggle gripper and downhole tractor |
| US7624808B2 (en) | 2006-03-13 | 2009-12-01 | Western Well Tool, Inc. | Expandable ramp gripper |
| WO2008061100A1 (en) | 2006-11-14 | 2008-05-22 | Rudolph Ernst Krueger | Variable linkage assisted gripper |
| US8485278B2 (en) | 2009-09-29 | 2013-07-16 | Wwt International, Inc. | Methods and apparatuses for inhibiting rotational misalignment of assemblies in expandable well tools |
| US9447648B2 (en) | 2011-10-28 | 2016-09-20 | Wwt North America Holdings, Inc | High expansion or dual link gripper |
| US9488020B2 (en) | 2014-01-27 | 2016-11-08 | Wwt North America Holdings, Inc. | Eccentric linkage gripper |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2946578A (en) * | 1952-08-04 | 1960-07-26 | Smaele Albert De | Excavator apparatus having stepper type advancing means |
| FR1354032A (fr) * | 1963-04-26 | 1964-02-28 | Dispositif de forage | |
| US3376942A (en) * | 1965-07-13 | 1968-04-09 | Baker Oil Tools Inc | Large hole vertical drilling apparatus |
| US3422631A (en) * | 1966-11-16 | 1969-01-21 | Daniel Silverman | Method and apparatus for driving and lining an underground conduit |
| FR1589717A (it) * | 1968-09-04 | 1970-04-06 | ||
| FR1591323A (it) * | 1968-11-07 | 1970-04-27 | ||
| AR207479A1 (es) * | 1974-07-29 | 1976-10-08 | Edenvale Eng Works | Mejoras en maquinas perforadoras |
| US3942595A (en) * | 1974-11-14 | 1976-03-09 | Boris Vasilievich Sudnishnikov | Self-propelled percussive machine for boring holes |
| US4095655A (en) * | 1975-10-14 | 1978-06-20 | Still William L | Earth penetration |
| US3978930A (en) * | 1975-11-14 | 1976-09-07 | Continental Oil Company | Earth drilling mechanisms |
| DE2734185C2 (de) * | 1977-07-29 | 1983-02-10 | Stahl- Und Apparatebau Hans Leffer Gmbh, 6602 Dudweiler | Anlage zum Niederbringen eines Bohrlochs für Pfahlgründungen |
-
1979
- 1979-05-18 DE DE19792920049 patent/DE2920049A1/de not_active Withdrawn
-
1980
- 1980-04-16 FR FR8008504A patent/FR2456830A1/fr active Granted
- 1980-04-17 GB GB8012719A patent/GB2048339B/en not_active Expired
- 1980-04-23 IT IT8053155U patent/IT8053155V0/it unknown
- 1980-04-23 IT IT67637/80A patent/IT1130805B/it active
- 1980-05-16 JP JP55065168A patent/JPS5816436B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT8053155V0 (it) | 1980-04-23 |
| GB2048339A (en) | 1980-12-10 |
| IT1130805B (it) | 1986-06-18 |
| JPS55155893A (en) | 1980-12-04 |
| IT8067637A0 (it) | 1980-04-23 |
| GB2048339B (en) | 1983-03-16 |
| FR2456830A1 (fr) | 1980-12-12 |
| DE2920049A1 (de) | 1981-02-12 |
| JPS5816436B2 (ja) | 1983-03-31 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |