(19)
(11) EP 4 473 190 A1

(12)

(43) Date of publication:
11.12.2024 Bulletin 2024/50

(21) Application number: 22925162.4

(22) Date of filing: 02.02.2022
(51) International Patent Classification (IPC): 
E21B 47/00(2012.01)
(52) Cooperative Patent Classification (CPC):
E21B 47/006; E21B 2200/20
(86) International application number:
PCT/US2022/014911
(87) International publication number:
WO 2023/149873 (10.08.2023 Gazette 2023/32)
(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

(71) Applicant: Chevron U.S.A. Inc.
San Ramon, CA 94583 (US)

(72) Inventors:
  • PATTERSON, Joseph E.
    San Ramon, California 94583-0806 (US)
  • KINI, Ramesh Anant
    San Ramon, California 94583-0806 (US)

(74) Representative: Haseltine Lake Kempner LLP 
One Portwall Square Portwall Lane
Bristol BS1 6BH
Bristol BS1 6BH (GB)

   


(54) WELLBORE DEPOSITION MONITORING TOOL