Patent · US Active

Pump through functionality in subsea valves using external manifold

US11225852B2 · kind B2 · utility

0Cited by

4References

19Claims

0Family size

Assignee

OneSubsea IP UK Limited · GB

Inventors

Mahesh Shenoy · Katy, US
John Kobersky · Alvin, US
Christopher Irvine · Hamilton, GB

Key dates

Filing date	Jun 24, 2020
Grant date	Jan 18, 2022
Priority date	—
Expiry date	Jun 24, 2040

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B2200/04
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A subsea valve system for use in a subsea landing string includes a subsea valve and an external manifold in fluid communication with the subsea valve. The external manifold includes a cylinder, a split manifold piston, an above bore inlet that is configured to be exposed to an above bore pressure, a below bore inlet that is configured to be exposed to a below bore pressure, and an open chamber outlet. The split manifold piston is configured to move within the cylinder to fluidly couple the above bore inlet to the open chamber outlet to enable pump through functionality while a respective force exerted on the manifold piston by the above bore pressure is greater than a respective force exerted on the manifold piston by the below bore pressure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.