EP 1257460 A1 20021120 - A SEMI-SUBMERSIBLE OFFSHORE LIFTING STRUCTURE, AND A METHOD FOR USING THE SAME
Title (en)
A SEMI-SUBMERSIBLE OFFSHORE LIFTING STRUCTURE, AND A METHOD FOR USING THE SAME
Title (de)
HALBTAUCHENDE OFFSHORE-HEBESTRUKTUR UND VERFAHREN ZU DEREN VERWENDUNG
Title (fr)
STRUCTURE DE LEVAGE EN MER SEMI-SUBMERSIBLE ET SON PROCEDE D'UTILISATION
Publication
Application
Priority
- NO 0100055 W 20010216
- NO 20000833 A 20000218
- US 18374800 P 20000222
Abstract (en)
[origin: WO0160688A1] The present invention relates to a semi-submersible lifting structure (3) with controllable buoyancy for lifting offshore platforms (11) placed on jackets with jacket legs. The lifting structure (3) has two, in a longitudinal direction, first substantially parallel pontoons (4) and a between the two first substantially parallel pontoons (4) and, at one end of said first pontoons (4), extending transversal second pontoon (5) for connecting said first pontoons to form a first U, two longitudinal, substantially parallel first deck beams (7) and an, at one end of said first deck beams (7), extending transversal second deck beam (8) for connecting said first deck beams to form a second U. The columns (6) extends between the first U and the second U to form a unitary construction where the first U and the second U are substantially parallel. The structure is adapted to be rigidly attached to a second semi-submersible vessel (2) to form a complete lifting vessel (1). A method for using the lifting vessel (1) is also disclosed.
IPC 1-7
IPC 8 full level
B63B 1/10 (2006.01); B63B 9/06 (2006.01); B63B 35/00 (2006.01)
CPC (source: EP US)
B63B 1/107 (2013.01 - EP); B63B 35/003 (2013.01 - EP US); B63B 77/00 (2020.01 - EP US)
Citation (search report)
See references of WO 0160688A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0160688 A1 20010823; AU 3782401 A 20010827; EP 1257460 A1 20021120
DOCDB simple family (application)
NO 0100055 W 20010216; AU 3782401 A 20010216; EP 01910248 A 20010216