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US 2013/0199791 A1Published application
Deep set subsurface safety system
AssigneeTejas Research & Engineering, LLC
InventorsThomas G. Hill, JR., Robert C. Henschel
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Abstract
A subsurface safety valve is operable to close a fluid flow path by virtue of an axially movable flow sleeve. The valve includes a recockable linear actuator and a latch mechanism so that the valve can be moved from an open to a closed position as a result of axial movement of the flow sleeve without overcoming the pressure head and frictional forces currently encountered in conventional safety valves.
Claims6
A safety valve comprising:
- a) a body,
- b) a flow sleeve positioned within the body and axially movable,
- c) a valve element pivotably mounted within the body between an open and closed position,
- d) a recockable actuator within the body for moving the flow sleeve in an axial direction, and disengaging from the flow sleeve when the valve is in the open position, and
- e) a latching mechanism for locking and unlocking the flow sleeve in a given position.
2 more elements
Dependencies are inferred from the claim text.