(19)

(11)

EP 2 984 285 A2

(12)

(88) Date of publication A3: 04.12.2014 (43) Date of publication: 17.02.2016 Bulletin 2016/07 (21) Application number: 14782881.8 (22) Date of filing: 25.03.2014

(51) International Patent Classification (IPC):  E21B 43/267(2006.01) (86) International application number: PCT/US2014/031679 (87) International publication number: WO 2014/168751 (16.10.2014 Gazette 2014/42)

(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: 08.04.2013 US 201313858780 (71) Applicant: Expansion Energy, LLC Tarrytown, NY 10591 (US)	(72) Inventor: VANDOR, David Tarrytown, NY 10591 (US) (74) Representative: Tischner, Oliver  Lavoix Munich Bayerstrasse 83 80335 München 80335 München (DE)