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EP 2 855 393 A1

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(43) Date of publication: 08.04.2015 Bulletin 2015/15 (21) Application number: 13726993.2 (22) Date of filing: 22.05.2013

(51) International Patent Classification (IPC):  C04B 28/02(2006.01) C04B 30/00(2006.01) C04B 18/16(2006.01) E21B 33/13(2006.01) C04B 28/04(2006.01) C04B 18/10(2006.01) C09K 8/467(2006.01) (86) International application number: PCT/US2013/042311 (87) International publication number: WO 2013/177336 (28.11.2013 Gazette 2013/48)

(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: 24.05.2012 US 201213479476 (71) Applicant: Halliburton Energy Services, Inc. Houston, TX 77072 (US)	(72) Inventors: RODDY, Craig W. Duncan, Oklahoma 73533 (US) CHATTERJI, Jiten Duncan, Oklahoma 73533 (US) BRENNEIS,D. Chad Marlow, Oklahoma 73055 (US) JARRATT, Callie R. Duncan, Oklahoma 73533 (US) (74) Representative: King, Lawrence  A.A. Thornton & Co. 10 Old Bailey London EC4M 7NG London EC4M 7NG (GB)