(19)

(11)

EP 4 337 842 A1

(12)

(43) Date of publication: 20.03.2024 Bulletin 2024/12 (21) Application number: 22808306.9 (22) Date of filing: 11.05.2022

(51) International Patent Classification (IPC):  E21B 33/12(2006.01) E21B 37/06(2006.01) E21B 31/00(2006.01) E21B 29/02(2006.01) (52) Cooperative Patent Classification (CPC): E21B 2200/08; E21B 33/1208; E21B 7/18; E21B 29/02 (86) International application number: PCT/US2022/028860 (87) International publication number: WO 2022/241055 (17.11.2022 Gazette 2022/46)

(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 (30) Priority: 14.05.2021 US 202163188806 P (71) Applicant: ConocoPhillips Company Houston, Texas 77079 (US)	(72) Inventors: BURKE, Jason Houston, Texas 77079 (US) WHITE, Matthew L. Houston, Texas 77079 (US) ELLER, John G. Houston, Texas 77079 (US) (74) Representative: Barker Brettell LLP  100 Hagley Road Edgbaston Birmingham, West Midlands B16 8QQ Birmingham, West Midlands B16 8QQ (GB)