Resettable selective locking device

A lock assembly for a subterranean tool operably positioned in a surrounding tubular, comprising:

• a mandrel operatively associated with a subterranean tool such that relative movement or the prevention of relative movement therebetween enables or disables said tool from operating;
• a lock assembly supported by said tool and mounted to said mandrel for selective engagement to said mandrel for a locked position for said tool and selective release from said mandrel for the operating position for said tool, said lock assembly comprising housing components whose relative rotation with respect to each other selectively engages and releases said lock assembly with said mandrel;
• said relative rotation in a first direction selectively drives at least one collet into an associated groove in said mandrel;
• said collet is ramped into said groove by a stationary upper housing of said housing components.

A lock assembly for a subterranean tool operably positioned in a surrounding tubular, comprising:

• a mandrel operatively associated with a subterranean tool such that relative movement or the prevention of relative movement therebetween enables or disables said tool from operating;
• a lock assembly supported by said tool and mounted to said mandrel for selective engagement to said mandrel for a locked position for said tool and selective release from said mandrel for the operating position for said tool, said lock assembly comprising housing components whose relative rotation with respect to each other selectively engages and releases said lock assembly with said mandrel;
• said relative rotation in a first direction selectively drives at least one collet into an associated groove in said mandrel;
• said at least one collet comprises a plurality of collets integrally formed using spaced parallel cuts in a ring in a plane substantially perpendicular to an axis of said mandrel;
• said mandrel comprising an associated groove for each said collets;
• said housing components comprising an upper and lower housing components;
• said collets comprising ramped heads that selectively engage corresponding upper housing ramps for selective movement into a respective said groove.