E - Fixed Constructions – 02 – B
Patent
E - Fixed Constructions
02
B
E02B 17/00 (2006.01) B63B 35/00 (2006.01) B63B 35/38 (2006.01)
Patent
CA 2095618
A skidbase (16) and a drilling structure (18) are adapted for transfer between a jack-up platform (12) and a fixed platform (14). The jack-up platform (12) is moved into position adjacent the fixed platform (14) and raised to a height aligned with the fixed platform (14). The skidbase (16) is then transferred onto the fixed platform (14) to provide a base on which the drilling structure (18) is next placed. The jack-up platform (12) is raised to a vertical height aligned with the skidbase (16). To ensure proper location of the top surface of the jack-up platform (12) relative to the skidbase (16), a connection means (47) automatically engages and aligns the jack-up platform (12) with the skidbase (16) so that skid rails (32, 44) located on the deck of the jack-up platform (12) and on a top surface of the skidbase (16) are positioned a precise distance apart and at the same vertical height. The drilling structure (18) is then skidded onto the skidbase (16) so that drilling operations may be performed from the fixed platform (14). The connection means (47) takes the form of a multi-dimension blade member (128) affixed to the skidbase (16). The blade member (128) progressively engages a series of guide members (122, 124) on the jack-up platform (12) and, thereby, progressively and stagewise aligns the skidbase (16) as the jack-up platform (12) is moved to its desired vertical height.
Mcnease Daniel Frank
Moody Michael Dwayne
Yeargain Charles Wesley
Oyen Wiggs Green & Mutala Llp
Rowan Companies Inc.
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