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1. (WO2013156551) TREATMENT OF UNDERGROUND FORMATIONS WITH GELS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/156551    International Application No.:    PCT/EP2013/058051
Publication Date: 24.10.2013 International Filing Date: 18.04.2013
IPC:
C08J 3/075 (2006.01), C09K 8/44 (2006.01), C09K 8/575 (2006.01), C09K 17/22 (2006.01), C09K 17/46 (2006.01)
Applicants: RHODIA OPERATIONS [FR/FR]; 25 rue de Clichy F-75009 Paris (FR)
Inventors: CADIX, Arnaud; (FR).
VUONG, Chi-Thanh; (FR)
Agent: CORDIER, Pascal; Rhodia Operations Direction de la Propriété Industrielle 40 rue de la Haie Coq F-93306 Aubervilliers (FR)
Priority Data:
12 01145 18.04.2012 FR
Title (EN) TREATMENT OF UNDERGROUND FORMATIONS WITH GELS
(FR) TRAITEMENT DE FORMATIONS SOUTERRAINES PAR DES GELS
Abstract: front page image
(EN)The present invention relates to the formation of a gel within a medium M, in particular within an underground formation, which comprises the following steps: (E1) a basic compound C is added to a fluid latex L comprising dispersed particles of a polymer P, bearing ester side functions, said basic compound C being added in an amount suitable for hydrolysing at least one part of said ester side functions into carboxylic acid and/or alcohol functions, as a result of which a modified latex L' is obtained, the viscosity of which gradually increases with time from the addition of the compound C up to the formation of a gel; then (E2) the resulting modified latex is introduced into the medium M before the formation of the gel and the gel is left to form within the medium M.
(FR)La présente invention concerne de formation d'un gel au sein d'un milieu M, notamment au sein d'une formation souterraine, qui comprend les étapes suivantes: (E1) à un latex fluide L comprenant des particules dispersées d'un polymère P, porteur de fonctions latérales ester, on ajoute un composé basique C, en une quantité propre à hydrolyser au moins une partie desdites fonctions latérales ester en des fonctions acide carboxylique et/ou alcool, ce par quoi on obtient un latex modifié L' dont la viscosité augmente progressivement avec le temps depuis l'addition du composé C jusqu'à la formation d'un gel; puis (E2) on introduit dans le milieu M le latex modifié ainsi obtenu avant la formation du gel et on laisse le gel se former au sein du milieu M.
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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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, 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, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)