Patent · US Active

Subsea well systems and methods for controlling fluid from the wellbore to the surface

US10260297B2 · kind B2 · utility

0Cited by

3References

19Claims

0Family size

Assignee

Baker Hughes, a GE company, LLC · US

Inventors

Derek Mathieson · Diemelstraße, US
Colin Bickersteth · Knaphill, GB

Key dates

Filing date	Oct 1, 2015
Grant date	Apr 16, 2019
Priority date	—
Expiry date	Oct 1, 2035

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B33/064
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A subsea wellbore system is disclosed in which a return fluid flows from a wellbore to the surface via an annulus between a drill string and a casing and then between the drill string and a riser, wherein the system includes a device configured to prevent flow of the return fluid flowing through the annulus between the drill string and the riser, and a bypass line configured to divert the flow of the return fluid from the annulus between the drill string and the riser to the surface.

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