Method of accessing a sub sea well and a guide arrangement there

Details Method of accessing a sub sea well and a guide arrangement there Method of accessing a sub sea well and a guide arrangement there

1996-01-18

1998-05-12

Graysay, Tamara L.

Hydraulic and earth engineering

Subterranean or submarine pipe or cable laying, retrieving,...

Submerging, raising, or manipulating line of pipe or cable...

166345, 166360, 4051951, E21B 33043, E21B 33072, E21B 4104, F16L 11133

Patent

active

057496765

ABSTRACT:
A system for accessing a subsea well in which a guide on a buoy system is tethered to the well head and the buoy is evacuated to render the guide arrangement rigid and a flexible coil tubing from a surface vessel above the well head is guided through this arrangement to the well head while adjustable buoyancy is provided along the flexible tubing between the vessel and the well head for controlling the profile of the tubing.

REFERENCES:
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patent: 4040264 (1977-08-01), Neilon
patent: 4109478 (1978-08-01), Gracia
patent: 4176986 (1979-12-01), Taft et al.
patent: 4182584 (1980-01-01), Panicker et al.
patent: 4234047 (1980-11-01), Mott
patent: 5069580 (1991-12-01), Herwig et al.
patent: 5159982 (1992-11-01), Hynes
patent: 5255743 (1993-10-01), Adam et al.
patent: 5381865 (1995-01-01), Blandford

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