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(11)

EP 3 042 029 A1

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(43) Date of publication: 13.07.2016 Bulletin 2016/28 (21) Application number: 14842171.2 (22) Date of filing: 04.03.2014

(51) International Patent Classification (IPC):  E21B 33/038(2006.01) E21B 17/01(2006.01) E05B 55/00(2006.01) (86) International application number: PCT/CA2014/050166 (87) International publication number: WO 2015/031985 (12.03.2015 Gazette 2015/10)

(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 (30) Priority: 06.09.2013 WO PCT/CA2013/050692 (71) Applicant: Strata Energy Services Inc. Blackfalds, Alberta T0M 0J0 (CA)	(72) Inventors: FILLIOL, Lyle Edward Charles Blackfalds, Alberta T0M 0J0 (CA) TRAVIS, Kenneth Adam John Blackfalds, Alberta T0M 0J0 (CA) WILSON, Stewart George Blackfalds, Alberta T0M0J0 (CA) (74) Representative: Mannion, Daniel James et al Kilburn & Strode LLP 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)