(19)

(11)

EP 2 334 545 A2

(12)

(88) Date of publication A3: 16.12.2010 (43) Date of publication: 22.06.2011 Bulletin 2011/25 (21) Application number: 09774936.0 (22) Date of filing: 06.10.2009

(51) International Patent Classification (IPC):  B63B 35/44(2006.01) E21B 17/01(2006.01) B63B 22/02(2006.01) (86) International application number: PCT/IB2009/055204 (87) International publication number: WO 2010/041229 (15.04.2010 Gazette 2010/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR Designated Extension States: AL BA RS (30) Priority: 09.10.2008 US 104001 P 07.11.2008 GB 0820395 (71) Applicant: Acergy France SA 92150 Suresnes (FR)	(72) Inventor: LEGRAS, Jean-Luc Houston Texas 77080 (US) (74) Representative: Lawrence, Richard Anthony et al Keltie LLP Fleet Place House 2 Fleet Place London EC4M 7ET London EC4M 7ET (GB)