(19)
(11) EP 4 680 830 A1

(12)

(43) Date of publication:
21.01.2026 Bulletin 2026/04

(21) Application number: 24709495.6

(22) Date of filing: 22.02.2024
(51) International Patent Classification (IPC): 
E21B 10/633(2006.01)
(52) Cooperative Patent Classification (CPC):
E21B 10/633
(86) International application number:
PCT/GB2024/050488
(87) International publication number:
WO 2024/236260 (21.11.2024 Gazette 2024/47)
(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: 12.05.2023 GB 202307104

(71) Applicant: Zerdalab Ltd
Aberdeen Aberdeenshire AB10 1BL (GB)

(72) Inventors:
  • TIPPLES, Robert
    Aberdeen Aberdeenshire AB10 1BL (GB)
  • SHOKRANI, Alborz
    Aberdeen Aberdeenshire AB10 1BL (GB)

(74) Representative: Murgitroyd & Company 
165-169 Scotland Street
Glasgow G5 8PL
Glasgow G5 8PL (GB)

   


(54) DRILL BIT