Valve system for drilling systems

Details Valve system for drilling systems Valve system for drilling systems

E - Fixed Constructions

21

B

E21B 34/16 (2006.01) E21B 34/10 (2006.01)

Patent

CA 2752773

A valve system includes a load holding valve, a feed balancing valve, and a fast feed differential valve. The load holding valve may be in fluid communication with the load holding valve. The fast feed differential valve is configured to move between an engaged state and a disengaged state. In the engaged state the fast feed differential valve fluidly couples a ring side of a feed cylinder, the load holding valve, and a piston side of the feed cylinder to allow fluid to flow from the ring side to the piston side.

L'invention porte sur un système de vanne, qui comprend une vanne de support de charge, une vanne d'équilibrage d'alimentation et une vanne différentielle d'alimentation rapide. La vanne de support de charge peut être en communication de fluide avec la vanne de support de charge. La vanne différentielle d'alimentation rapide est configurée de façon à se déplacer entre un état enclenché et un état libéré. Dans l'état enclenché, la vanne différentielle d'alimentation rapide couple fluidiquement un côté de bague d'un cylindre d'alimentation, la vanne de support de charge et un côté de piston du cylindre d'alimentation, de façon à permettre à un fluide de s'écouler du côté de bague au côté de piston.

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