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1. (WO2002026654) A CEMENTING COMPOSITION INCLUDING A DISPERSANT AGENT FOR CEMENTING OPERATION IN OIL WELLS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/026654    International Application No.:    PCT/EP2001/011139
Publication Date: 04.04.2002 International Filing Date: 24.09.2001
Chapter 2 Demand Filed:    12.04.2002    
IPC:
C04B 24/26 (2006.01), C04B 24/32 (2006.01), C04B 28/04 (2006.01), C09K 8/46 (2006.01)
Applicants: 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 JG The Hague (NL) (AT, DE, DK, IT only).
SCHLUMBERGER HOLDINGS LIMITED [--/--]; P.O. Box 71, Craigmuir Chambers, Road Twon, Tortola (VG) (GB, NL only).
SOFITECH N.V. [BE/BE]; Rue de Stalle 140, B-1180 Brussels (BE) (AE, AL, AM, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DM, EE, ES, FI, GA, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NE, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW only).
VOLPERT, Edgar [DE/DE]; (DE) (For US Only)
Inventors: VOLPERT, Edgar; (DE)
Agent: HYDEN, Martin; Etudes & Productions Schlumberger, 1, rue Henri Becquerel, B.P. 202, F-92142 Clamart Cedex (FR)
Priority Data:
00203384.3 29.09.2000 EP
Title (EN) A CEMENTING COMPOSITION INCLUDING A DISPERSANT AGENT FOR CEMENTING OPERATION IN OIL WELLS
(FR) COMPOSITION DE CIMENTATION CONTENANT UN AGENT DISPERSANT, DESTINEE AUX OPERATIONS DE CIMENTATION DE PUITS DE PETROLE
Abstract: front page image
(EN)The invention concerns a cementing composition for cold zones cementing operations in an oil well or analogous, said composition comprising a aqueous fluid base, solid particles including cement particles, and a dispersing agent in solution in the aqueous fluid base, said dispersing agent having a comb-like structure composed of a graft copolymer, said graft copolymer being constituted by a backbone carrying grafted chains.
(FR)Composition de cimentation destinée aux opérations de cimentation d'un puits de pétrole ou analogue dans des zones froides, qui contient une base fluide aqueuse, des particules solides, y compris des particules de ciment, et un agent dispersant se trouvant en solution dans la base fluide aqueuse. Ledit agent dispersant possède une structure de type peigne composée d'un copolymère greffé, ce copolymère étant constitué d'un squelette portant des chaînes greffées.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)