(19)
(11) EP 3 394 386 A1

(12)

(43) Date of publication:
31.10.2018 Bulletin 2018/44

(21) Application number: 16834091.7

(22) Date of filing: 23.12.2016
(51) International Patent Classification (IPC): 
E21B 33/12(2006.01)
E21B 33/128(2006.01)
(86) International application number:
PCT/GB2016/054065
(87) International publication number:
WO 2017/109509 (29.06.2017 Gazette 2017/26)
(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:
MA MD

(30) Priority: 23.12.2015 GB 201522725
23.12.2015 GB 201522741

(71) Applicants:
  • Peak Well Services Pty Ltd.
    Bayswater, WA 6053 (AU)
  • Peak Well Systems Limited
    Aberdeen, Aberdeenshire AB10 1DQ (GB)

(72) Inventor:
  • BROWN, Gareth Edward George
    Ellon Aberdeenshire AB41 7NN (GB)

(74) Representative: Lincoln, Matthew et al
Lincoln IP 9 Victoria Street
Aberdeen AB10 1XB
Aberdeen AB10 1XB (GB)

   


(54) EXPANDING AND COLLAPSING APPARATUS AND METHODS OF USE