Patent · US Active

Riser isolation tool for deepwater wells

US9605490B2 · kind B2 · utility

1Cited by

10References

20Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Joe E. Hess · Richmond, US
Andrew John Cuthbert · Spring, US
Ronald Wayne Courville · Richmond, US

Key dates

Filing date	Sep 3, 2014
Grant date	Mar 28, 2017
Priority date	—
Expiry date	Sep 3, 2034

Classification

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

Abstract

In a subsea drilling operation, a riser isolation tool may be installed inside a marine riser between the subsea wellhead and the rig floor to provide a conduit having a higher pressure rating than the original riser itself. In some embodiments, the riser isolation tool includes a tubular body and, extending therefrom, a seal stinger sized to be slidably received in a receptacle seated in the wellhead. Additional apparatus, systems, and methods are disclosed.

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