Title:
SYSTEM AND METHOD FOR POSITIONING AN OFFSHORE STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2020/049497
Kind Code:
A8
Abstract:
A system for positioning an offshore structure has a lifting vessel (1); a lifting device (5) mounted onboard the lifting vessel (1) and configured to displace, lift and lower an offshore structure (2); a dynamic positioning device (6) configured to supply first signals (S1) correlated to the position and the attitude of the lifting vessel (1) with respect to an absolute reference system and to place the lifting vessel (1) in a given position; a plurality of reflector prisms (15) mounted to the offshore structure (2); a plurality of total stations (16) mounted on the lifting vessel (1) to supply second signals (S2) correlated to the position of the reflector prisms (15) with respect to the lifting vessel (1); and a control unit (7) configured to acquire and process the first and second signals (S1, S2) and to supply third signals (S3) correlated to the position of the reflector prisms (15) with respect to the absolute reference system in function of said first and second signals (S1, S2).
Inventors:
NERVEGNA DIEGO (IT)
MARGINSON NEIL (IT)
BLASUTTA ANGELO (IT)
MARGINSON NEIL (IT)
BLASUTTA ANGELO (IT)
Application Number:
PCT/IB2019/057486
Publication Date:
February 25, 2021
Filing Date:
September 05, 2019
Export Citation:
Assignee:
SAIPEM SPA (IT)
International Classes:
B63B27/10; E02B17/00; G01C15/00; G01S5/14
Attorney, Agent or Firm:
ECCETTO, Mauro et al. (IT)
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