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1. (WO2016096970) METHOD OF STABILIZING CLAY USING A POLYIMIDAZOLIUM COMPOUND
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/096970    International Application No.:    PCT/EP2015/079972
Publication Date: 23.06.2016 International Filing Date: 16.12.2015
IPC:
C09K 8/035 (2006.01), C09K 8/52 (2006.01), C09K 8/588 (2006.01), C09K 8/60 (2006.01), C09K 8/62 (2006.01), C09K 8/70 (2006.01), C09K 8/72 (2006.01), C09K 8/88 (2006.01), E21B 43/04 (2006.01), C09K 8/68 (2006.01)
Applicants: BASF SE [DE/DE]; 67056 Ludwigshafen (DE)
Inventors: FLEISCHEL, Olivier; (DE).
LINDNER, Jean-Pierre Berkan; (DE).
KIERAT, Radoslaw; (DE).
LAFUENTE CERDA, Oscar; (DE)
Agent: REITSTÖTTER KINZEBACH; Sternwartstraße 4 81679 München (DE)
Priority Data:
14198466.6 17.12.2014 EP
Title (EN) METHOD OF STABILIZING CLAY USING A POLYIMIDAZOLIUM COMPOUND
(FR) PROCÉDÉ DE STABILISATION DE L'ARGILE À L'AIDE D'UN COMPOSÉ DE POLYIMIDAZOLIUM
Abstract: front page image
(EN)The present invention relates to a method of inhibiting the swelling of clay in subterranean formations by introducing a carrier fluid into the formation, wherein the carrier fluid comprises at least one clay stabilizer which is a cationic polymer comprising imidazolium groups having a weight average molecular weight Mw of about 1,000 g/mol to about 20,000 g/mol.
(FR)La présente invention concerne un procédé pour empêcher le gonflement de l'argile dans des formations souterraines par introduction d'un fluide porteur dans la formation, ce fluide porteur comprenant au moins un stabilisateur d'argile qui est un polymère cationique comprenant des groupes imidazolium ayant une masse moléculaire moyenne en poids Mw comprise entre environ 1000 g/mol et environ 20000 g/mol.
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.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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 (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)