Monobore completion/intervention riser system

Details Monobore completion/intervention riser system Monobore completion/intervention riser system

1998-03-11

1999-08-24

Dang, Hoang C.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166368, E21B 43013

Patent

active

059413107

ABSTRACT:
A monobore completion/intervention riser system for providing a conduit for communication fluids and wireline tools between a surface vessel and a subsea well having a tubing hanger located therein, the tubing hanger including a production bore and an annulus bore, wherein wireline tools may be lowered through a riser bore 48 to either the tubing hanger production bore 68 or the tubing hanger annulus bore 70 through operation of a bore selector 56, and fluids may be produced from the well to the surface vessel through the production bore 52, 60, 64, 68 and the riser bore 48 by sealing off the annulus bore 66, 70.

REFERENCES:
patent: 3545541 (1970-12-01), DeVries
patent: 4632188 (1986-12-01), Schuh et al.
patent: 5129459 (1992-07-01), Breese et al.
patent: 5161620 (1992-11-01), Ritter, Jr.
patent: 5377762 (1995-01-01), Turner
patent: 5544707 (1996-08-01), Hopper et al.

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