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US 2016/0108934 A1Published application
Propellant driven accumulator
AssigneeShell Oil Company
InventorCurtis Len WILIE
Life of this patent
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Abstract
A subsea accumulator comprising: an outer wall; a top surface; a bottom surface; and a piston disposed within the subsea accumulator, wherein a first chamber is defined by the top surface, the outer wall, and a top portion of the piston; a second chamber is defined by the bottom surface; the outer wall, and a bottom portion of the piston; and a solid oxidant is disposed within the first chamber.
Claims20
A subsea accumulator comprising:
- an outer wall;
- a top surface;
- a bottom surface;
- and a piston disposed within the subsea accumulator, wherein
- a first chamber is defined by the top surface, the outer wall, and a top portion of the piston;
- a second chamber is defined by the bottom surface;
- the outer wall, and a bottom portion of the piston;
- and
- a solid oxidant is disposed within the first chamber.
6 more elements
A blowout preventer system comprising:
- a blowout preventer and
- subsea accumulator, wherein the subsea accumulator comprises:
- an outer wall;
- a top surface;
- a bottom surface;
- and a piston disposed within the subsea accumulator, wherein
- a first chamber is defined by the top surface, the outer wall, and a top portion of the piston;
- a second chamber is defined by the bottom surface;
- the outer wall, and a bottom portion of the piston;
- and
- a solid oxidant is disposed within the first chamber.
8 more elements
A method of actuating a blowout preventer comprising:
- providing a blow out preventer providing a subsea accumulator, wherein the subsea accumulator comprises:
- an outer wall;
- a top surface;
- a bottom surface;
- and a piston disposed within the subsea accumulator, wherein
- a first chamber is defined by the top surface, the outer wall, and a top portion of the piston;
- a second chamber is defined by the bottom surface;
- the outer wall, and a bottom portion of the piston;
- and
- a solid oxidant is disposed within the first chamber;
- connecting the subsea accumulator to the blowout preventer via a work line, wherein the work line comprises an actuating valve;
- and
- opening the actuating valve to actuate the blowout preventer.
10 more elements
Dependencies are inferred from the claim text.