Casing exit anchor with redundant activation system
AssigneeBaker Hughes Oilfield Operations LLC
InventorsTuan Nguyen, Philip M. Gregurek
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Abstract
A method of activating an anchor with an anchor activation system including a housing having an outer surface and an inner surface defining an internal chamber includes introducing a first activation force to a trigger comprising a piston arranged in a piston cylinder extending radially through the outer surface to the internal chamber, sensing that the first activation force did not activate the anchor, and introducing a second activation force to the trigger without reconfiguring the anchor activation system to break a shear element retaining the piston with the first activation to release the piston and activate the anchor.
Claims16
A method of activating an anchor with an anchor activation system including a housing having an outer surface and an inner surface defining an internal chamber, the method comprising:
- introducing a first activation force in the form of an annular pressure increase about the anchor activation system to a trigger comprising a piston arranged in a piston cylinder extending radially through the outer surface to the internal chamber;
- sensing that the first activation force did not activate the anchor;
- and
- introducing a second activation force to the trigger without reconfiguring the anchor activation system to break a shear element retaining the piston and release the piston and activate the anchor.
A method of activating an anchor with an anchor activation system including a housing having an outer surface and an inner surface defining an internal chamber, the method comprising:
- positioning a whipstock at a first position in a wellbore;
- introducing an activation force in the form of an annular pressure increase about the housing to a trigger comprising a piston arranged in a piston cylinder extending radially through the outer surface;
- breaking a shear element with the activation force to release the piston;
- disengaging a constrained energy source and the piston;
- shifting a slip with the constrained energy source into contact with a wellbore surface;
- and
- rotating the anchor after shifting the slip into contact with the wellbore surface.
Dependencies are inferred from the claim text.