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EP 4 798 991 A1

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(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24887009.9 (22) Date of filing: 01.11.2024

(51) International Patent Classification (IPC):  G01V 20/00(2024.01) G01V 1/50(2006.01) G06N 20/00(2019.01) E21B 49/00(2006.01) G06N 3/08(2023.01) (52) Cooperative Patent Classification (CPC): G06N 20/00; G06N 3/08; G01V 20/00 (86) International application number: PCT/US2024/054192 (87) International publication number: WO 2025/097002 (08.05.2025 Gazette 2025/19)

(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: 01.11.2023 US 202363595096 P (71) Applicants: Services Pétroliers Schlumberger 75007 Paris (FR) FR  GeoQuest Systems B.V. 2514 JG The Hague (NL) AL AT BE BG CH CY CZ DE DK EE ES FI 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

(72) Inventors: MUSTAPHA, Hussein Abu Dhabi (AE) SINGH, Manish Kumar Mumbai 400706 (IN) STOJIC, Slobodan Crawley, West Sussex RH10 9BU (GB) (74) Representative: Schlumberger Intellectual Property Department  Parkstraat 83 2514 JG Den Haag 2514 JG Den Haag (NL)