Overpressure compensation systems and assemblies for a subsea manifold
AssigneeFMC Technologies, Inc.
InventorsLeonardo de Araujo Bernardo, Guilherme Sousa Moura, Huei Lai, Andre Faisca, Gustavo Antonio Vieira Borges
Life of this patent
Estimating the term…
Abstract
Systems, methods, and devices for compensating overpressure associated with thermal expansion of fluid within a closed cavity of a subsea manifold assembly. At least one piston assembly may be included and selectively fluidly connected to the closed cavity to counteract or reduce a pressure produced within the closed cavity.
Claims20
An overpressure compensation assembly for reducing an overpressure within a closed cavity of a subsea manifold, the overpressure generated by thermal expansion of a fluid within the closed cavity caused by high-temperature fluid within an active portion of the subsea manifold, the overpressure compensation assembly comprising:
- a piston assembly comprising:
- a piston;
- a first end coupled to the closed cavity of the subsea manifold to compensate a pressure within the closed cavity;
- and
- a second end disposed opposite the first end, the second end configured to allow expansion of fluid within the closed cavity.
An overpressure compensation assembly for reducing an overpressure within a closed cavity of a subsea manifold, the overpressure generated by thermal expansion of a fluid within the closed cavity caused by high-temperature fluid within an active portion of the subsea manifold, the overpressure compensation assembly comprising:
- a piston assembly comprising:
- a piston;
- a first end coupled to the closed cavity of the subsea manifold to compensate a pressure within the closed cavity;
- and
- a second end coupled to a spring.
An overpressure compensation assembly for reducing an overpressure within a closed cavity of a subsea manifold, the overpressure generated by thermal expansion of a fluid within the closed cavity caused by high-temperature fluid within an active portion of the subsea manifold, the overpressure compensation assembly comprising:
- a first piston assembly comprising:
- a piston;
- a first end coupled to the closed cavity of the subsea manifold to compensate a pressure within the closed cavity;
- and
- a second end comprising a barrier fluid disposed therein, the barrier fluid distinct from the fluid within the closed cavity.
Dependencies are inferred from the claim text.