E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 4/04 (2006.01) E21B 21/00 (2006.01)
Patent
CA 2578465
A drilling system for use in a well bore consists of a drill string, an electrically powerable pump (8), a connector (16) for supporting the pump (8) including a through bore (32) through which fluid can flow, and a power cable (15) to provide power to the electrically powerable pump. The cuttings are pumped up through the drillpipe (3). The drill bit (4) may also be powered by the pump. Part of the cable is disposed externally to the drill string where new pipe sections are added, before passing into the drill string through a cross-over means (40) further down the drillpipe to connect to the electrically powerable pump.
L~invention concerne un système de forage pour puits de forage, comprenant un train de forage, une pompe à alimentation électrique (8), un connecteur (16) soutenant la pompe (8) et traversé d~un alésage (32) permettant le passage d~un fluide, et un câble d~alimentation (15) pour alimenter la pompe à alimentation électrique. Les déblais sont pompés en surface par l~intermédiaire d~une tige de forage (3). L~outil de forage (4) peut également être alimenté par la pompe. Une partie du câble est disposée à l~extérieur du train de forage, là où de nouveaux tronçons de tiges sont ajoutés, avant de passer dans le train de forage par l~intermédiaire d~un moyen de raccord (40) plus profondément sur la tige de forage afin de se brancher sur la pompe à alimentation électrique.
Gowling Lafleur Henderson Llp
Head Phil
LandOfFree
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