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(11)

EP 3 161 241 A1

(12)

(43) Date of publication: 03.05.2017 Bulletin 2017/18 (21) Application number: 15824503.5 (22) Date of filing: 24.07.2015

(51) International Patent Classification (IPC):  E21B 10/64(2006.01) E21B 31/00(2006.01) E21B 23/02(2006.01) (86) International application number: PCT/US2015/041914 (87) International publication number: WO 2016/014903 (28.01.2016 Gazette 2016/04)

(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 (30) Priority: 24.07.2014 US 201414339972 (71) Applicant: Extreme Technologies, LLC Vernal, UT 84078 (US)	(72) Inventors: MEIER, Gilbert Troy Vernal, UT 84078 (US) ASCHENBRENNER, Joseph Blackfoot, ID 83221 (US) SMITH, Joshua J. Vernal, UT 84078 (US) OSTERLOH, James D. West Richland, WA 99353 (US) DICK, Cameron Vernal, UT 84078 (US) (74) Representative: Cornford, James Robert  Forresters Skygarden Erika-Mann-Strasse 11 80636 München 80636 München (DE)