(19)

(11)

EP 2 906 660 A1

(12)

(43) Date of publication: 19.08.2015 Bulletin 2015/34 (21) Application number: 13844827.9 (22) Date of filing: 10.10.2013

(51) International Patent Classification (IPC):  C09K 8/588(2006.01) C09K 8/12(2006.01) E21B 43/22(2006.01) (86) International application number: PCT/US2013/064373 (87) International publication number: WO 2014/059167 (17.04.2014 Gazette 2014/16)

(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: 11.10.2012 US 201213649156 (71) Applicant: Halliburton Energy Services, Inc. Houston, TX 77072 (US)	(72) Inventors: LIVANEC, Philip W. Deer Park, Texas 77536 (US) PEREZ, Gregory P. Pearland, Texas 77581 (US) DEVILLE, Jay P. Spring, Texas 77388 (US) (74) Representative: Turner, Craig Robert  A.A. Thornton & Co. 10 Old Bailey London EC4M 7NG London EC4M 7NG (GB)