(19)

(11)

EP 4 448 925 A1

(12)

(43) Date of publication: 23.10.2024 Bulletin 2024/43 (21) Application number: 21851698.7 (22) Date of filing: 14.12.2021

(51) International Patent Classification (IPC):  E21B 41/00(2006.01) (52) Cooperative Patent Classification (CPC): E21B 41/0064 (86) International application number: PCT/IB2021/000898 (87) International publication number: WO 2023/111611 (22.06.2023 Gazette 2023/25)

(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: TotalEnergies OneTech 92400 Courbevoie (FR)	(72) Inventor: RODRIGUEZ MARTINEZ, Alejandro 64018 Pau Cedex (FR) (74) Representative: Lavoix  2, place d'Estienne d'Orves 75441 Paris Cedex 09 75441 Paris Cedex 09 (FR)