Recoverable system for mooring mobile offshore drilling units

Hydraulic and earth engineering – Marine structure or fabrication thereof – With anchoring of structure to marine floor

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114265, 114296, B63B 2127

Patent

active

061133159

ABSTRACT:
In a system for mooring offshore drilling units, a first mooring assembly is installed at a first drilling venue, after which the mobile offshore drilling unit is moored by connection to the mooring lines. A second mooring assembly is installed at a second drilling venue while drilling operations are carried out at the first drilling venue. In this manner the mobile offshore drilling unit can be relocated between successive drilling venues with minimum down time. Less than complete mooring assemblies can be used to temporarily secure the mobile offshore drilling unit.

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Pre-set Moorings Provide Less Costly Alternative to DP in Ultra-Deepwater, Peter G.S. Dove & Thomas M. Fulton, Aker Marine Contractors, Offshore, May 1997 pp. 76-80.
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