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1. (WO2018052589) MECHANICALLY LOCKABLE AND UNLOCKABLE HYDRAULICALLY ACTIVATED VALVE, BOREHOLE SYSTEM AND METHOD

Pub. No.:    WO/2018/052589    International Application No.:    PCT/US2017/046286
Publication Date: Fri Mar 23 00:59:59 CET 2018 International Filing Date: Fri Aug 11 01:59:59 CEST 2017
IPC: E21B 34/10
F16K 31/12
E21B 34/00
Applicants: BAKER HUGHES, A GE COMPANY, LLC
Inventors: HAMMER, Aaron
Title: MECHANICALLY LOCKABLE AND UNLOCKABLE HYDRAULICALLY ACTIVATED VALVE, BOREHOLE SYSTEM AND METHOD
Abstract:
A mechanically lockable and unlockable hydraulically activated valve including a mechanical component having a locked position and an unlocked position, a hydraulic component in operational communication with the mechanical component, the hydraulic component including a portion that is unresponsive to pressure events with the mechanical component in the locked position and responsive to pressure events with the mechanical component in the unlocked position. A borehole system including a string disposed within a borehole, the string including a valve. A method of operating a mechanically lockable and unlockable hydraulically activated valve for a borehole includes shifting a mechanical component of the mechanically lockable and unlockable hydraulically activated valve from a locked position to an unlocked position, inducing a differential pressure on a hydraulic component of the mechanically lockable and unlockable hydraulically activated valve, opening a hydraulic valve of the mechanically lockable and unlockable hydraulically activated valve.