Marine riser protector for use on offshore oil drilling rigs in icy waters
Patent
·
OSTI ID:5588654
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.
- Assignee:
- Mitsui Engineering and Shipbuilding Co. Ltd. (Japan)
- Patent Number(s):
- US 4505618
- OSTI ID:
- 5588654
- Country of Publication:
- United States
- Language:
- English
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