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EP 4 544 148 A1

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(43) Date of publication: 30.04.2025 Bulletin 2025/18 (21) Application number: 22949224.4 (22) Date of filing: 27.06.2022

(51) International Patent Classification (IPC):  E21B 33/13(2006.01) E21B 33/136(2006.01) E21B 33/134(2006.01) E21B 43/00(2006.01) (52) Cooperative Patent Classification (CPC): E21B 33/10; E21B 33/02; E21B 41/0007 (86) International application number: PCT/IB2022/055941 (87) International publication number: WO 2024/003591 (04.01.2024 Gazette 2024/01)

(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: KH MA MD TN (71) Applicant: Abu Dhabi Company For Offshore Petroleum Operations Limited Abu Dhabi (AE)	(72) Inventors: AL ALI, Salim Abdulla Abu Dhabi (AE) ALKAMALI, Khaled Abu Dhabi (AE) TANAKA, Hisaya Abu Dhabi (AE) (74) Representative: Bardehle Pagenberg Partnerschaft mbB Patentanwälte Rechtsanwälte  Prinzregentenplatz 7 81675 München 81675 München (DE)