Tubular actuator and method
AssigneeBaker Hughes Incorporated
InventorsPeter J. Fay, Yang Xu
Life of this patent
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Abstract
A tubular actuator includes, a restrictor disposed at a tubular that is engageably receptive to a runnable member run thereagainst as long as pressure remains above a latch pressure, the restrictor configured to allow passage of the runnable member after a delay at pressure equal to or below the latch pressure.
Claims19
A tubular actuator, comprising a restrictor disposed at a tubular being engagably receptive to a runnable member run thereagainst the restrictor being configured to prevent passage of the runnable member thereby as long as pressure applied against the runnable member engaged therewith remains above a latch pressure while allowing passage of the runnable member after a delay after having reduced pressure to a value equal to or below the latch pressure;
- wherein the restrictor includes a seat that is seatingly engagably receptive to the runnable member;
- and
- wherein the seat is defeatable after the delay to allow passage of the runnable member thereby.
A method of selectively actuating a tubular actuator, comprising:
- running a runnable member within a tubular;
- engaging a seat of a restrictor with the runnable member;
- pressuring up to pressure above a latch pressure;
- removably latching the seat of the restrictor to a body of the restrictor with pressure supplied by the pressuring up as long as pressure remains above the latch pressure;
- reducing pressure to pressure at or below the latch pressure for a time delay;
- and
- passing the runnable member by the seat of the restrictor after the time delay without an additional increase in the pressure above the latch pressure.
Dependencies are inferred from the claim text.