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EP 4 739 880 A1

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(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24740420.5 (22) Date of filing: 05.07.2024

(51) International Patent Classification (IPC):  E21B 21/00(2006.01) G01F 1/74(2006.01) G01N 33/28(2006.01) E21B 49/00(2006.01) G01N 24/08(2006.01) (52) Cooperative Patent Classification (CPC): E21B 21/00; E21B 49/00; E21B 49/005; G01N 2011/0066; G01N 2011/0086; G01F 1/74; G01N 33/2823; G01N 24/082 (86) International application number: PCT/EP2024/069113 (87) International publication number: WO 2025/008540 (09.01.2025 Gazette 2025/02)

(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: GE KH MA MD TN (30) Priority: 05.07.2023 GB 202310350 (71) Applicant: Hammertech AS 5221 Nesttun (NO)	(72) Inventors: KALSAAS, Odd-Petter 5221 Nesttun (NO) BRANDT, Morten 5221 Nesttun (NO) (74) Representative: D Young & Co LLP  3 Noble Street London EC2V 7BQ London EC2V 7BQ (GB)