Downhole apparatus for mobilising drill cuttings

Details Downhole apparatus for mobilising drill cuttings Downhole apparatus for mobilising drill cuttings

E - Fixed Constructions

21

B

E21B 17/10 (2006.01) E21B 17/22 (2006.01) E21B 21/00 (2006.01)

Patent

CA 2558471

Apparatus for mobilising drill cuttings in a well, comprising at least one vane (12), and two or more blades (15). The two or more blades (15) define at least one fluid conduit between adjacent blades (15). The blades (15) and the or each vane (12) are rotatable relative to one another. The apparatus is provided to alleviate the problem of drill cuttings clumping together downhole. The or each vane (12) can be provided on a sleeve (5). The blades (15) can be mounted on a bushing (7) that is rotatably mounted on the sleeve (5).

Cette invention concerne un appareil servant à mobiliser des déblais de forage dans un puits, lequel appareil comprend au moins une aube (12) et au moins deux ailettes (15). Ces ailettes (15) définissent au moins un conduit de fluide entre des ailettes (15) adjacentes. Les ailettes (15) et la ou les aubes (12) sont rotatives les unes par rapport aux autres. L'appareil sert à éliminer le problème associé à l'accumulation des déblais de forage au fond du puits. La ou les aubes (12) peuvent être disposées sur un manchon (5). Les ailettes (15) peuvent être montées sur un raccord (7) qui est monté rotatif sur le manchon (5).

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