(12) International Application Status Report

Received at International Bureau: 11 March 2016 (11.03.2016)

Information valid as of: 27 July 2017 (27.07.2017)

Report generated on: 09 December 2019 (09.12.2019)

(10) Publication number: (43) Publication date: (26) Publication language:
WO 2017/13778817 August 2017 (17.08.2017) English (EN)

(21) Application number: (22) Filing date: (25) Filing language:
PCT/IB2016/00026111 February 2016 (11.02.2016) English (EN)


(51) International Patent Classification:
C04B 28/02 (2006.01); C04B 20/10 (2006.01); C09K 8/467 (2006.01); C09K 8/493 (2006.01)

(71) Applicant(s):
SERVICES PETROLIERS SCHLUMBERGER [FR/FR]; 42 rue Saint Dominique F-75007 Paris (FR) (FR only)
SCHLUMBERGER TECHNOLOGY B.V. [NL/NL]; Parkstraat 83-89 NL-2514 The Hague (NL) (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW only)
SCHLUMBERGER CANADA LIMITED [CA/CA]; 525-3rd Avenue S.W. Calgary, Alberta T2P 0G4 (CA) (CA only)
SCHLUMBERGER TECHNOLOGY CORPORATION [US/US]; 300 Schlumberger Drive Sugar Land, TX 77478 (US) (US only)

(72) Inventor(s):
DROGER, Nicolas; SRPC Clamart 1 Rue Henri Becquerel F-92142 Clamart Cedex (FR)

(74) Agent(s):
ETUDES ET PRODUCTIONS SCHLUMBERGER; 1, rue Henri Becquerel BP 202 F-92142 Clamart Cedex (FR)

(54) Title (EN): DELAYED-EXPANSION CEMENT AND CEMENTING OPERATIONS
(54) Title (FR): CIMENT À EXPANSION RETARDÉE ET OPÉRATIONS DE CIMENTATION

(57) Abstract:
(EN): A delayed-expansion cement mixture or slurry of hydraulic cement contains an expanding agent having hydrophobically modified surfaces with a hydrophobic and/or self-assembling film. A method to delay expansion of cement involves treating the expanding agent with a self- assembling film precursor compound, making the slurry with cement and water, and setting and expanding the cement. A cementing method places the mixture or slurry downhole where it is hardened and expanded.
(FR): La présente invention concerne un mélange de ciment ou une pâte de ciment hydraulique à expansion retardée comprenant un agent expansif présentant des surfaces modifiées en vue de les rendre hydrophobes au moyen d'un film hydrophobe et/ou un film à auto-assemblage. L'invention décrit un procédé servant à retarder l'expansion de ciment consistant à traiter l'agent d'expansion au moyen d'un composé précurseur de film à auto-assemblage, à réaliser la pâte au moyen de ciment et d'eau, et à durcir et provoquer l'expansion du ciment. Le procédé de cimentation consiste à placer la pâte ou le mélange au fond d'un trou où il est durci et expansé.

International search report:
Received at International Bureau: 01 December 2016 (01.12.2016) [EP]

International Report on Patentability (IPRP) Chapter II of the PCT:
Not available

(81) Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
European Patent Office (EPO) : AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
African Intellectual Property Organization (OAPI) : BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG
African Regional Intellectual Property Organization (ARIPO) : BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW
Eurasian Patent Organization (EAPO) : AM, AZ, BY, KG, KZ, RU, TJ, TM