Abstract: The present invention provides a riser protection structure being suitable to be employed in a Jackup rig. The riser protection structure comprises a plurality of piles, an upper module, wherein the upper module comprises a main protection tubing for receiving a riser, a plurality of sleeves to be installed over the plurality of piles, and a connecting network; wherein the plurality of sleeves are disposed around the main protection tubing; and wherein the main protection tubing and the plurality of sleeves are connected together by the connecting network, and a lower module, wherein the lower module comprises a plurality of tubular guides for guiding and later fixing the piles and a connecting structure, wherein the plurality of piles are securely disposed into the seabed for providing the requisite support for the upper and lower modules when they are assembled.
Type:
Grant
Filed:
February 15, 2013
Date of Patent:
March 3, 2015
Assignees:
Keppel Offshore & Marine Technology Centre, Pte Ltd/ConocoPhillips Company
Inventors:
Kok Seng Foo, Michael John Perry, Quah Chin Kau Matthew, Cynthia Wang, Randall Scott Shafer, Peter Noble, Dominic P. Berta