Method and apparatus for removing cuttings

Details Method and apparatus for removing cuttings Method and apparatus for removing cuttings

E - Fixed Constructions

21

B

E21B 19/22 (2006.01) E21B 17/20 (2006.01) E21B 21/00 (2006.01) E21B 37/00 (2006.01) E21B 7/06 (2006.01)

Patent

CA 2497314

An apparatus and method for removing cuttings in a deviated borehole using drilling fluids. The apparatus includes a pipe string and a bottom hole assembly having a down hole motor and bit for drilling the borehole. The pipe string has one end attached to the bottom hole assembly and does not rotate during drilling. The apparatus and methods raise at least a portion of the pipe string in the deviated borehole to remove cuttings from underneath the pipe string portion.

La présente invention concerne un appareil et un procédé pour enlever les déblais dans un trou de forage dévié en utilisant les fluides de forage. L'appareil comporte un train de tige et un ensemble de fond de trou pourvu d'un moteur de fond de trou et d'un trépan servant à forer le trou de forage. Le train de tiges dont une extrémité est attachée à l'ensemble de fond de trou ne tourne pas pendant le forage. L'appareil et le procédé provoquent un relèvement d'une partie au moins du train de tiges dans le trou foré dévié de façon à éliminer les déblais provenant du dessous du segment de train de tiges.

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