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 having a first end and a second end opposite the first end;
- a first portion disposed proximate the first end of the piston, the first portion fluidly coupled to the closed cavity of the subsea manifold to compensate a pressure within the closed cavity of the subsea manifold, the pressure associated with the thermal expansion of the fluid within the closed cavity;
- and
- a second portion disposed proximate the second end of the piston, the second portion configured to allow expansion of fluid within the closed cavity of the subsea manifold through actuation of the piston;
- and
- a valve disposed in a fluid path between the closed cavity of the subsea manifold and the first portion, the valve configured to selectively connect and disconnect the piston assembly from the subsea manifold,
- wherein the valve is controlled automatically based at least in part on a pressure within the closed cavity of the subsea manifold.
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 having a first end and a second end opposite the first end;
- a first portion disposed proximate the first end of the piston, the first portion fluidly coupled to the closed cavity of the subsea manifold to compensate a pressure within the closed cavity, the pressure associated with the thermal expansion of the fluid within the closed cavity of the subsea manifold;
- and
- a second portion disposed proximate the second end of the piston and coupled to a spring;
- and
- a valve disposed in a fluid path between the closed cavity of the subsea manifold and the first portion, the valve configured to selectively connect and disconnect the piston assembly from the subsea manifold,
- wherein the valve is controlled automatically based at least in part on a pressure within the closed cavity of the subsea manifold.
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 having a first end and a second end opposite the first end;
- a first portion disposed proximate the first end of the piston, the first portion fluidly coupled to the closed cavity of the subsea manifold to compensate a pressure within the closed cavity of the subsea manifold, the pressure associated with the thermal expansion of the fluid within the closed cavity of the subsea manifold;
- and
- a second portion disposed proximate the second end of the piston, the second portion comprising a barrier fluid disposed therein, the barrier fluid distinct from the fluid within the closed cavity of the subsea manifold;
- and
- a valve disposed in a fluid path between the closed cavity of the subsea manifold and the first portion, the valve configured to selectively connect and disconnect the first piston assembly from the subsea manifold,
- wherein the valve is controlled automatically based at least in part on a pressure within the closed cavity of the subsea manifold.
Dependencies are inferred from the claim text.