(19)
(11) EP 4 824 392 A1

(12)

(43) Date of publication:
21.10.2026 Bulletin 2026/43

(21) Application number: 24915298.4

(22) Date of filing: 30.12.2024
(51) International Patent Classification (IPC): 
E21B 47/01(2012.01)
E21B 44/00(2006.01)
E21B 12/02(2006.01)
E21B 47/12(2012.01)
G06F 17/40(2006.01)
E21B 47/26(2012.01)
(52) Cooperative Patent Classification (CPC):
E21B 47/13; E21B 47/26; E21B 44/04; E21B 44/00; E21B 47/12
(86) International application number:
PCT/US2024/062249
(87) International publication number:
WO 2025/147435 (10.07.2025 Gazette 2025/28)
(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: 02.01.2024 US 202463616946 P
02.10.2024 US 202418904160

(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:
  • IFESIE, Ifeanyichukwu
    Abqaiq Hi-way, Dhahran, 31952 (SA)
  • MOUYIASIS, Michael
    Abu Dhabi (AE)
  • HEWARTSON, James
    Abqaiq Hi-way, Dhahran, 31421 (SA)
  • SHARMA, Varun
    Dammam, 34332 (SA)

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

   


(54) DOWNHOLE MONITOR