Riser fill-up valve

Details Riser fill-up valve Riser fill-up valve

1996-07-11

1998-10-27

Suchfield, George A.

Wells

Submerged well

Connection or disconnection of submerged members remotely...

137 812, 166319, 166367, 251145, E21B 1701, E21B 33038, E21B 3406

Patent

active

058266585

ABSTRACT:
A fill-up valve is provided for a riser having a longitudinal axis that is connected at one end to a subsea wellhead and at the other end to a platform of an offshore oil or gas well. The fill-up valve is formed from a gate valve that mounts to an exterior of the riser and occupies a position extending less than the entire transverse periphery of the riser. The gate valve has a transverse profile projecting outward from the exterior of the riser that allows passage of the riser and fill-up valve through confined areas, such as through a rotary table of the well. A flow passage of the gate valve communicates with the interior of the riser to allow water to flow into the interior of the riser.

REFERENCES:
patent: 4187876 (1980-02-01), Lang
patent: 4210208 (1980-07-01), Shanks
patent: 4294284 (1981-10-01), Herd
patent: 4442902 (1984-04-01), Doremus et al.
patent: 4621655 (1986-11-01), Roche
patent: 4828024 (1989-05-01), Roche
patent: 4832126 (1989-05-01), Roche
patent: 5192051 (1993-03-01), Roberson
patent: 5415237 (1995-05-01), Strattan

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