Jackup platform trailer
AssigneeShell Oil Company
InventorRay R. Ayers
Life of this patent
Estimating the term…
Abstract
A jackup platform trailer for surface or undersea work is formed from a deck structure supported by a submersible flotation means. In a transport mode, the deck structure is linked via a gooseneck arm and swivel joint to a workboat. In an operational mode, the submersible flotation means is fully submersed to support the deck structure from the ocean floor, without need for an attached workboat.
Claims25
A jackup platform trailer comprising a deck structure supported by submersible flotation means, means for extending the flotation means downwardly beneath the deck structure, means for pivoting the flotation means and deck structure, and connecting means extending between the deck structure and the pivoting means.
A method for transporting and positioning a jackup platform trailer having a deck structure supported by downwardly extendable, submersible flotation means and connection means extending from the deck structure to pivoting means connectable to a two vessel, comprising towing the trailer with the vessel to a desired location, partially ballasting down the flotation means to stabilize the trailer, releasing the pivoting means from the vessel, and fully ballasting down the flotation means to the sea floor.
Dependencies are inferred from the claim text.