(19)
(11) EP 4 816 852 A1

(12)

(43) Date of publication:
07.10.2026 Bulletin 2026/41

(21) Application number: 24898311.6

(22) Date of filing: 11.11.2024
(51) International Patent Classification (IPC): 
G01V 1/16(2006.01)
 G01V 1/38(2006.01)
(52) Cooperative Patent Classification (CPC):
G01V 1/38; G01V 1/162; G01V 1/188
(86) International application number:
PCT/NO2024/050245
(87) International publication number:
WO 2025/116736 (05.06.2025 Gazette 2025/23)
(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: 01.12.2023 NO 20231311

(71) Applicant: Pxgeo Norway AS
0161 Oslo (NO)

(72) Inventors:
  • SUNNANAA, Asgeir
    1357 BEKKESTUA (NO)
  • RALBERG, Ulf
    139 51 Värmdö (SE)

(74) Representative: HGF 
HGF Limited 4th Floor, 1 City Square
Leeds LS1 2ES
Leeds LS1 2ES (GB)

   


(54) AN AUTONOMOUS GEOPHYSICAL RECORDING DEVICE WITH AN OSCILLATOR CLOCK FOR SEISMIC USE