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Floating installation

  • US 6,321,675 B1
  • Filed: 06/09/2000
  • Issued: 11/27/2001
  • Est. Priority Date: 12/10/1998
  • Status: Expired due to Fees
First Claim
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1. A floating installation, including a main moonpool, in which there is arranged a bulkhead which divides the moonpool into a first section and a second section, which bulkhead forms a first wall in a compartment in the first section, which compartment is also defined by the walls of the moonpool and a floor, which bulkhead is designed to be opened to provide communication between the first section and the second section, which compartment is substantially watertight when the bulkhead is closed, and in which a lifting device for carrying a load is provided so as to be moveable between a first position inside the compartment and a second position in the second section of the moonpool, wherein the floating installation has a derrick above the moonpool, the derrick having a vertical axis along which strings of pipe are moveable, and that the lifting device is movable along rails mounted in the moonpool straddling the vertical axis of the derrick, and running between the compartment and the second section, the load being transferable between the lifting device and a suspension in the string of the pipe.

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