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(11)

EP 2 882 925 A1

(12)

(43) Date of publication: 17.06.2015 Bulletin 2015/25 (21) Application number: 13827940.1 (22) Date of filing: 06.08.2013

(51) International Patent Classification (IPC):  E21B 19/24(2006.01) E21B 33/128(2006.01) E21B 23/06(2006.01) (86) International application number: PCT/US2013/053777 (87) International publication number: WO 2014/025769 (13.02.2014 Gazette 2014/07)

(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: 07.08.2012 US 201261680487 P (71) Applicant: Enventure Global Technology, L.L.C. Houston, TX 77079 (US)	(72) Inventors: NOEL, Gregory, Marshall Katy, Texas 77450 (US) BUTTERFIELD, Charles, Anthony, Jr. Cypress, Texas 77429 (US) (74) Representative: Giles, Ashley Simon  Haseltine Lake LLP Lincoln House, 5th Floor 300 High Holborn London WC1V 7JH London WC1V 7JH (GB)