The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 16, 2007
Filed:
May. 28, 2004
Arne Sele, Hosle, NO;
Arne Sele, Hosle, NO;
Aker Riser Systems AS, Osto, NO;
Abstract
A riser for conveying fluids from a subsea location to a surface vessel comprises an upper section which is located in a confining conduit, said upper section being allowed to deform elastically into a helical configuration against the inside of the confining conduit when subjected to axial compression. The riser further comprises a main section extending below the confining conduit to said subsea location. The riser also comprises a buoyancy arrangement which keeps the main section in tension. This arrangement allows the Christmas tree to be supported directly on the deck of the surface structure and allows the surface structure to support the weight of the tree as well as the tubing which is hung off from the tree.