Deep water hurricane valve

Details Deep water hurricane valve Deep water hurricane valve

2007-07-19

2010-12-21

Neuder, William P (Department: 3672)

Wells

Processes

Placing or shifting well part

C166S135000, C166S192000

Reexamination Certificate

active

07854268

ABSTRACT:
A storm plug for temporarily isolating an offshore well in deep water includes a retrievable service packer connected to a valve housing containing a movable isolation sleeve and a standing valve. The standing valve precludes the fluid flow through a portion of the isolation sleeve. The isolation sleeve being hydraulically actuated from an open position to a closed position. In the open position, fluid may flow through flow ports in the standing valve to an annular bypass area between the valve housing and the isolation sleeve. In the closed position, the isolation sleeve prevents fluid flow through the valve housing. The valve may be hydraulically actuated as compared to conventional storm valve that are set by workstring rotation. The running tool used to run the storm plug into the well may be hydraulically disconnected from the valve housing.

REFERENCES:
patent: 1972791 (1934-09-01), Otis
patent: 3288221 (1966-11-01), Howard et al.
patent: 3804167 (1974-04-01), Swift
patent: 4372392 (1983-02-01), Barrington et al.
patent: 5154228 (1992-10-01), Gambertoglio et al.
patent: 5181569 (1993-01-01), McCoy et al.
patent: 5188180 (1993-02-01), Jennings
patent: 5931229 (1999-08-01), Lehr et al.
patent: 6182762 (2001-02-01), Harris
patent: 7168493 (2007-01-01), Eddison
patent: 2004/0159447 (2004-08-01), Bissonnette et al.

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