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(11)

EP 3 429 914 A1

(12)

(43) Date of publication: 23.01.2019 Bulletin 2019/04 (21) Application number: 17767664.0 (22) Date of filing: 17.03.2017

(51) International Patent Classification (IPC):  B63B 35/44(2006.01) F03B 13/18(2006.01) F03B 13/12(2006.01) B63B 22/04(2006.01) F03B 13/20(2006.01) E21B 47/00(2012.01) (86) International application number: PCT/US2017/023050 (87) International publication number: WO 2017/161322 (21.09.2017 Gazette 2017/38)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 18.03.2016 US 201662310478 P 22.07.2016 US 201615217797 22.12.2016 US 201662437793 P (71) Applicant: Oceaneering International Inc. Houston, TX 77041 (US)	(72) Inventors: CHANCE, Thomas Lafayette, Louisiana 70508 (US) KERINS, Kevin Frances The Woodlands, Texas 77380 (US) MANCINI, Christopher S Houston, Texas 77355 (US) MOLES, Peter Andrew Robert Cypress, Texas 77433 (US) (74) Representative: WP Thompson  8th Floor 1 Mann Island Liverpool L3 1BP Liverpool L3 1BP (GB)