FR2372955A1 - Couronne de forage retractable - Google Patents
Couronne de forage retractableInfo
- Publication number
- FR2372955A1 FR2372955A1 FR7636633A FR7636633A FR2372955A1 FR 2372955 A1 FR2372955 A1 FR 2372955A1 FR 7636633 A FR7636633 A FR 7636633A FR 7636633 A FR7636633 A FR 7636633A FR 2372955 A1 FR2372955 A1 FR 2372955A1
- Authority
- FR
- France
- Prior art keywords
- crown
- elements
- bars
- boring
- train
- 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
- 238000005070 sampling Methods 0.000 title abstract 2
- HSRJKNPTNIJEKV-UHFFFAOYSA-N Guaifenesin Chemical compound COC1=CC=CC=C1OCC(O)CO HSRJKNPTNIJEKV-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000717 retained effect 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
- E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
- E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable
-
- 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
- E21B25/04—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe the core receiver having a core forming cutting edge or element, e.g. punch type core barrels
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
- Earth Drilling (AREA)
Abstract
Dispositif permettant de changer en cours de forage tout ou partie de la couronne sans avoir à sortir le train de tiges. Il comporte un manchon aléseur 11, vissé sur le tube carottier extérieur en bout du train de tige. L'outil de forage est en huit éléments maintenus entre eux par des glissières en queue d'aronde. Les quatre éléments mâles 1, sont reliés à un manchon intérieur porte extracteur au moyen d'une biellette retenue dans un segment creux logé dans une gorge du manchon, porte extracteur. Ces biellettes, après une course dans une glissière, entraînent vers le haut des éléments mâles, qui en glissant le long des éléments femelles, referment la couronne. Ce nouveau cylindre plus petit peut donc passer à l'intérieur du train de tiges de forage. Forage et carottage continus d'où l'on extrait la carotte au moyen d'un tube intérieur sans sortir à chaque fois le train de tige.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7636633A FR2372955A1 (fr) | 1976-12-01 | 1976-12-01 | Couronne de forage retractable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7636633A FR2372955A1 (fr) | 1976-12-01 | 1976-12-01 | Couronne de forage retractable |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2372955A1 true FR2372955A1 (fr) | 1978-06-30 |
FR2372955B1 FR2372955B1 (fr) | 1980-03-07 |
Family
ID=9180674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7636633A Granted FR2372955A1 (fr) | 1976-12-01 | 1976-12-01 | Couronne de forage retractable |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2372955A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0208532A2 (fr) * | 1985-07-09 | 1987-01-14 | Diamant Boart (Uk) Limited | Dispositif de prise de carotte d'échantillonnage |
WO1997020130A2 (fr) | 1995-11-24 | 1997-06-05 | Petroline Wireline Services Limited | Appareil de fond de puits et procede d'expansion du tube de production |
-
1976
- 1976-12-01 FR FR7636633A patent/FR2372955A1/fr active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0208532A2 (fr) * | 1985-07-09 | 1987-01-14 | Diamant Boart (Uk) Limited | Dispositif de prise de carotte d'échantillonnage |
EP0208532A3 (fr) * | 1985-07-09 | 1987-10-07 | Diamant Boart (Uk) Limited | Dispositif de prise de carotte d'échantillonnage |
WO1997020130A2 (fr) | 1995-11-24 | 1997-06-05 | Petroline Wireline Services Limited | Appareil de fond de puits et procede d'expansion du tube de production |
WO1997020130A3 (fr) * | 1995-11-24 | 1997-08-28 | Petroline Wireline Services | Appareil de fond de puits et procede d'expansion du tube de production |
US6012523A (en) * | 1995-11-24 | 2000-01-11 | Petroline Wellsystems Limited | Downhole apparatus and method for expanding a tubing |
Also Published As
Publication number | Publication date |
---|---|
FR2372955B1 (fr) | 1980-03-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |