(19)

(11)

EP 3 329 079 A1

(12)

(43) Date of publication: 06.06.2018 Bulletin 2018/23 (21) Application number: 16754201.8 (22) Date of filing: 26.07.2016

(51) International Patent Classification (IPC):  E21B 10/12(2006.01) E21B 10/14(2006.01) (86) International application number: PCT/EP2016/067823 (87) International publication number: WO 2017/017106 (02.02.2017 Gazette 2017/05)

(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: 27.07.2015 GB 201513154 30.08.2015 US 201562211812 P (71) Applicant: Barry, John Ennis V95 X2Y5 (IE)	(72) Inventor: Barry, John Ennis V95 X2Y5 (IE)