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(11)

EP 2 855 620 A1

(12)

(43) Date of publication: 08.04.2015 Bulletin 2015/15 (21) Application number: 13727783.6 (22) Date of filing: 29.05.2013

(51) International Patent Classification (IPC):  C09K 8/34(2006.01) C04B 40/06(2006.01) C09K 8/46(2006.01) C04B 28/02(2006.01) C09K 8/42(2006.01) (86) International application number: PCT/US2013/043152 (87) International publication number: WO 2013/184469 (12.12.2013 Gazette 2013/50)

(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: 04.06.2012 US 201261655190 P 04.06.2012 US 201213488178 (71) Applicant: Halliburton Energy Services, Inc. Houston, TX 77072 (US)	(72) Inventors: REDDY, B. Raghava The Woodlands, Texas 77380 (US) EOFF, Larry S. Duncan, Oklahoma 73536 (US) PASCARELLA, Natalie Houston, Texas 77064 (US) (74) Representative: Hoffmann Eitle  Patent- und Rechtsanwälte PartmbB Arabellastraße 30 81925 München 81925 München (DE)