A drill-string connector

Details A drill-string connector A drill-string connector

E - Fixed Constructions

21

B

E21B 19/20 (2006.01) E21B 17/02 (2006.01)

Patent

CA 2577542

A connector (10) which provides a fluid tight connection between a fluid supply and a drill-string (4), the connector (10) comprising a piston-rod (20) and a cylinder (15), the piston-rod (20) having a seal at or towards its free end which is adapted to sealingly engage the drill-string (4) when the piston-rod (20) is at least partially extended from the cylinder (15).

Il s'agit d'un raccord (10) qui assure un raccordement étanche aux liquides entre un apport liquide et un train de tiges de forage (4). Ce raccord (10) comprend une tige à piston (20) et un cylindre (15). La tige à piston (20) comporte un joint d'étanchéité situé à son extrémité libre ou à proximité de cette extrémité, adapté pour accoupler de manière étanche le train de tiges de forage (4) et lorsque la tige à piston (20) est au moins sortie du cylindre (15).

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