Marine riser protector for use on offshore oil drilling rigs in

Details Marine riser protector for use on offshore oil drilling rigs in Marine riser protector for use on offshore oil drilling rigs in

1983-04-29

1985-03-19

Taylor, Dennis L.

Hydraulic and earth engineering

Marine structure or fabrication thereof

Structure protection

405 61, 405195, E02B 1502

Patent

active

045056188

ABSTRACT:
An apparatus for protecting a marine riser extending downwardly from a platform of an offshore station above a sea level toward a sea bottom. A tubular protector is removably mounted on the underside of the platform in surrounding relation to the marine riser in the vicinity of the sea level. According to another embodiment, a tubular protector has an upper portion in the shape of a truncated cone for contact with ice floes and a lower portion shaped as a grid-like truncated cone flaring downwardly for diverting ice floes away from the tubular protector.

REFERENCES:
patent: 934176 (1909-09-01), Hubbard
patent: 3142343 (1964-07-01), Otteman et al.
patent: 3369599 (1968-02-01), Evans
patent: 3370432 (1968-02-01), Butler et al.
patent: 4063428 (1977-12-01), Waas
patent: 4388025 (1983-06-01), Evans

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