Method and equipment for running riser pipes for mooring offshor

Details Method and equipment for running riser pipes for mooring offshor Method and equipment for running riser pipes for mooring offshor

1980-12-08

1984-01-03

Corbin, David H.

Hydraulic and earth engineering

Marine structure or fabrication thereof

166338, 166367, E02B 1702, E21B 1502

Patent

active

044239823

ABSTRACT:
A system for running riser pipes from a floating vessel to each of a plurality of conductors set in the sea floor in a circular pattern. A vertically mooring guidance riser is first connected between the center of the pattern and the floating vessel. A permanent riser pipe is guided down to one of the conductors by use of a guide frame positioned on the guidance riser. When all of the permanent riser pipes are run, the guidance riser may be removed. Special running tools and guide frames are described.

REFERENCES:
patent: 3373807 (1968-03-01), Fischer et al.
patent: 3648638 (1972-03-01), Blenkarn
patent: 3976021 (1976-08-01), Blenkarn et al.
patent: 3983828 (1976-10-01), Stram
patent: 3993273 (1976-11-01), Dade
patent: 4062313 (1977-12-01), Stram
patent: 4127005 (1978-11-01), Osborne
patent: 4174011 (1979-11-01), Zaremba
patent: 4199275 (1980-04-01), Tuson
patent: 4214842 (1980-07-01), Franks
patent: 4228857 (1980-10-01), Nobileau

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