(19)
(11) EP 3 899 201 A1

(12)

(43) Date of publication:
27.10.2021 Bulletin 2021/43

(21) Application number: 19842980.5

(22) Date of filing: 20.12.2019
(51) International Patent Classification (IPC): 
E21B 43/1185(2006.01)
(52) Cooperative Patent Classification (CPC):
E21B 43/1185
(86) International application number:
PCT/US2019/068118
(87) International publication number:
WO 2020/132613 (25.06.2020 Gazette 2020/26)
(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

(30) Priority: 20.12.2018 US 201862782909 P

(71) Applicant: Owen Oil Tools LP
Houston, TX 77040 (US)

(72) Inventors:
  • LAGRANGE, Timothy E.
    Ponoka, AB T4J 1R1 (CA)
  • WOOD, Jeffrey D.
    Keller, TX 76248 (US)
  • GARTZ, Jeffrey
    Lacombe, AB T4L 2M3 (CA)

(74) Representative: Whitfield, Gillian Janette 
Astrum ElementOne Limited Merlin House Langstone
Newport NP18 2HJ
Newport NP18 2HJ (GB)

   


(54) PERFORATING GUN WITH SWITCH CARTRIDGE