(19)
(11) EP 4 798 673 A1

(12)

(43) Date of publication:
02.09.2026 Bulletin 2026/36

(21) Application number: 24883428.5

(22) Date of filing: 25.10.2024
(51) International Patent Classification (IPC): 
C09K 8/54(2006.01)
(52) Cooperative Patent Classification (CPC):
C09K 8/54; C09K 2208/32
(86) International application number:
PCT/US2024/053037
(87) International publication number:
WO 2025/090918 (01.05.2025 Gazette 2025/18)
(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: 27.10.2023 US 202363593672 P

(71) Applicants:
  • Services Pétroliers Schlumberger
    75007 Paris (FR)

    FR 
  • Schlumberger Technology 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:
  • NORDVIK, Tore
    4033 Stavanger (NO)
  • BARNES, Paul
    Aberdeen Aberdeenshire AB12 3LW (GB)
  • STRENITZ, Melisa
    4028 Stavanger (NO)
  • MACDOUGALL, Dugald
    Aberdeen Aberdeenshire AB12 3LW (GB)
  • PANAMARATHUPALAYAM, Balakrishnan
    Houston, Texas 77072 (US)

(74) Representative: Schlumberger Intellectual Property Department 
Parkstraat 83
2514 JG Den Haag
2514 JG Den Haag (NL)

   


(54) BREAKER FLUIDS INCLUDING A CORROSION INHIBITOR, AND RELATED METHODS