System for mooring a production vessel
AssigneeShell Oil Company
InventorsYile Li, Joao Paulo Juliao Matsuura, Jan Hendrik Gerretsen
Life of this patent
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Abstract
A system for mooring a floating production vessel comprising: two or more buoys anchored to the seafloor that are also connected directly to the floating production vessel; and one or more risers connected to at least one of the buoys that is also connected to one or more subsea wellheads or manifolds wherein the buoys are not connected to the floating vessel by a swivel and turret system.
Claims13
A system for mooring a floating production vessel comprising:
- a. two or more buoys anchored to the seafloor that are also connected directly to the floating production vessel;
- and
- b. one or more risers connected to at least one of the buoys that is also connected to one or more subsea wellheads or manifolds
- wherein the buoys are not connected to the floating vessel by a swivel and turret system.
A method of mooring a floating production vessel comprising:
- a. providing two or more buoys that are anchored to the seafloor;
- and
- b. connecting the two or more buoys to the floating vessel
- wherein the buoys are not connected to the floating vessel by a swivel and turret system.
A method of protecting production risers and the floating production vessel from the effects of a storm comprising:
- a. providing two or more buoys that are anchored to the seafloor and connected to a floating production vessel;
- b. providing one or more production risers that are connected to a source of oil and gas production on the seafloor and to at least one of the buoys;
- c. disconnecting all buoys that are connected to the one or more production risers from the floating production vessel;
- and
- d. submerging all buoys to a depth of at least 10 meters below sea level.
Dependencies are inferred from the claim text.