B - Operations – Transporting – 63 – B
Patent
B - Operations, Transporting
63
B
114/59.7
B63B 21/50 (2006.01) B63B 22/02 (2006.01)
Patent
CA 1220385
ABSTRACT OF THE DISCLOSURE The disclosure describes apparatus for mooring a vessel 10 in unprotected waters. The vessel 10 contains a recess 34 in its hull adapted for receiving a buoyant mooring element 18. The mooring element 18 is attached to the ocean floor 12 by a plurality of mooring lines 20. Means are provided for releasably securing the mooring element 18 within the recess 34. The buoyancy of the mooring element is established such that on release from the vessel 10 it sinks to a predetermined depth a spaced distance above the ocean floor. The apparatus of the present invention is especially well suited for mooring a hydrocarbon storage tanker proximate the terminus of a production riser in waters subject to ice floes.
481033
Filson John J.
Gadbois John F.
Ortloff John E.
Ziarnik Allen P.
Borden Ladner Gervais Llp
Exxon Production Research Company
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