E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/06 (2006.01) E21B 25/00 (2006.01)
Patent
CA 2480473
The invention concerns a method and a device for coring and/or drilling through a wall of a bore hole, to deflect transversely from a longitudinal direction of the hole, further comprising selecting a core barrel (1) equipped with a core bit (3) having an inner gauge bore (5), an arrangement, in the core barrel (1), of an abrasion resistant internal guide (7), which is internal at least with respect to the bore (5) so that the bit (3) can move along said guide (7), and is designed to deflect the bit (3) along a desired deflected path, start-up of the coring process with said bit (3) and guiding the bit (3) through co-operation between its bore (5) and the guide (7).
Procédé et dispositif de carottage et/ou forage à travers une paroi d'un trou de sonde, pour dévier transversalement à partir d'une direction longitudinal du trou, comportant outre une sélection d'un carottier (1) muni d'une couronne de carottage (3) présentant un alésage de calibre interne (5), un agencement, dans le carottier (1), d'un guide interne (7) résistant à l'abrasion, qui est intérieur à au moins l'alésage (5), de manière à ce que la couronne (3) puisse circuler le long de ce guide (7), et est agencé pour dévier la couronne (3) suivant une direction de trajet dévié souhaité, une mise en route du carottage avec la dite couronne (3) et un guidage de la couronne (3) par son alésage (5) coopérant avec la guide (7).
Dechief Georges
Fanuel Philippe
Quintana Luis
Halliburton Energy Services Inc.
Sim & Mcburney
LandOfFree
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