(19)
(11) EP 3 277 912 A2

(12)

(88) Date of publication A3:
17.11.2016

(43) Date of publication:
07.02.2018 Bulletin 2018/06

(21) Application number: 16725194.1

(22) Date of filing: 31.03.2016
(51) International Patent Classification (IPC): 
E21B 23/04(2006.01)
(86) International application number:
PCT/GB2016/050906
(87) International publication number:
WO 2016/156851 (06.10.2016 Gazette 2016/40)
(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:
MA MD

(30) Priority: 02.04.2015 GB 201505716

(71) Applicant: Hydralock Systems limited
Aberdeen AB10 1PS (GB)

(72) Inventors:
  • Wardley, Michael
    Aberdeen Aberdeenshire AB15 5NA (GB)
  • SIMPSON, Neil Andrew
    Downies Aberdeenshire AB12 4QX (GB)

(74) Representative: Fulton, David James 
Lincoln IP 9 Victoria Street
Aberdeen AB10 1XB
Aberdeen AB10 1XB (GB)

   


(54) DOWNHOLE TOOL