Tubular actuator and method
AssigneeBaker Hughes Incorporated
InventorsPeter J. Fay, Darin H. Duphorne
Life of this patent
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Abstract
A tubular actuator includes, a tubular, a support member disposed at the tubular, and a restrictor configured to pass a runnable member when unsupported by the support member and to prevent passage of the runnable member when supported by the support member. The restrictor is movable relative to the support member from an unsupported position to a supported position in response to pressure applied against the runnable member engaged with the restrictor according to a pressure versus time profile.
Claims22
A tubular actuator comprising:
- a tubular;
- a support member disposed at the tubular;
- and
- a restrictor being configured to pass a runnable member therethru when unsupported by the support member and to prevent passage of the runnable member when supported by the support member, the restrictor being movable relative to the support member from an unsupported position to a supported position in response to pressure being applied against the runnable member engaged with the restrictor according to a pressure versus time profile prior to passage of the runnable member by the restrictor.
A method of selectively actuating a tubular actuator, comprising:
- running a runnable member within a tubular;
- engaging a restrictor disposed at the tubular with the runnable member;
- passing the runnable member by the restrictor if pressure thereagainst exceeds a threshold pressure before moving the restrictor a selected dimension;
- and
- pressuring up against the engaged runnable member to pressure equal to or less than the threshold pressure for at least a selected period of time thereby moving the restrictor to a supported position and preventing passage of the runnable member even if pressure exceeds the threshold pressure.
A tubular actuator comprising a restrictor positionable within a tubular relative to a support member between an initially unsupported position where passage of a runnable member is facilitated, and a supported position where passage of the runnable member is prevented, the restrictor being movable between the initially unsupported position and the supported position in response to pressure applied against the runnable member seated at the restrictor prior to passage of the runnable member by the restrictor.
Dependencies are inferred from the claim text.