(19)

(11)

EP 4 433 684 A1

(12)

(43) Date of publication: 25.09.2024 Bulletin 2024/39 (21) Application number: 22826374.5 (22) Date of filing: 15.11.2022

(51) International Patent Classification (IPC):  E21B 33/035(2006.01) (52) Cooperative Patent Classification (CPC): E21B 33/0355 (86) International application number: PCT/GB2022/052897 (87) International publication number: WO 2023/084253 (19.05.2023 Gazette 2023/20)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 15.11.2021 GB 202116453 (71) Applicant: Subsea 7 Limited Sutton, Surrey SM2 5BN (GB)	(72) Inventor: KLUZ, Maciej Piotr Aberdeen AB22 8WA (GB) (74) Representative: Keltie LLP  No. 1 London Bridge London SE1 9BA London SE1 9BA (GB)