Subsea drilling system with pressure dampener
AssigneeCameron International Corporation
InventorKody Carrillo
Life of this patent
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Abstract
A subsea drilling system with a subsea component controllable by a fluid supply source. The system includes a pressure dampener in fluid communication between the fluid supply source and the subsea component. The pressure dampener includes a body consisting of a dampener fluid flow path which consists of a volume and a biasing system. The biasing system includes a piston biased to an initial position, wherein the piston is configured to move from the initial position to expand the volume of the dampener fluid flow path and dampen a pressure surge received by the pressure dampener and wherein the biasing system is configured to contract the volume of the dampener fluid flow path by returning the piston toward the initial position after dampening the pressure surge.
Claims22
A subsea drilling system with a subsea component controllable by a fluid supply source, the system comprising:
- a pressure dampener in fluid communication between the fluid supply source and the subsea component, the pressure dampener comprising:
- a body comprising a dampener fluid flow path comprising a volume;
- and
- a biasing system comprising a plurality of pistons, each in fluid communication in parallel with the dampener fluid flow path, and biased to an initial position;
- wherein the pistons are configured to move from the initial position to expand the volume of the dampener fluid flow path and dampen a pressure surge received by the pressure dampener;
- wherein the biasing system is configured to contract the volume of the dampener fluid flow path by returning the pistons toward the initial position after dampening the pressure surge;
- and
- wherein the pressure dampener is teed between the fluid supply source and the subsea component with the dampener fluid flow path inlet also being the outlet.
A pressure dampener for dampening a pressure surge, comprising:
- a body comprising a dampener fluid flow path comprising a volume and an inlet also being an outlet;
- and
- a biasing system comprising a plurality of pistons, each in fluid communication in parallel with the dampener fluid flow path, and biased to an initial position;
- wherein the pistons are configured to move from the initial position to expand the volume of the dampener fluid flow path and dampen the pressure surge received by the pressure dampener;
- and
- wherein the biasing system is configured to contract the volume of the dampener fluid flow path by returning the pistons toward the initial position after dampening the pressure surge.
Dependencies are inferred from the claim text.