Global Patent Index - EP 1257460 A1

EP 1257460 A1 2002-11-20 - 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

EP 1257460 A1 (EN)

Application

EP 01910248 A

Priority

  • NO 0100055 W
  • NO 20000833 A
  • US 18374800 P

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 (main, further and additional classification)

B63B 35/00

IPC 8 full level (invention and additional information)

B63B 1/10 (2006.01); B63B 9/06 (2006.01); B63B 35/00 (2006.01)

CPC (invention and additional information)

B63B 35/003 (2013.01); B63B 1/107 (2013.01); B63B 9/065 (2013.01); B63B 2009/067 (2013.01)

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

EPO simple patent family

WO 0160688 A1 20010823; AU 3782401 A 20010827; EP 1257460 A1 20021120

INPADOC legal status


2006-02-15 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20040318

2003-04-09 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030221

2002-11-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020906

2002-11-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-11-20 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI