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1. (WO2006084662) PHOSPHOROUS-CONTAINING SPECIES FOR USE IN SLUDGE CONTROL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/084662    International Application No.:    PCT/EP2006/001063
Publication Date: 17.08.2006 International Filing Date: 07.02.2006
IPC:
C09K 8/524 (2006.01), C09K 8/54 (2006.01)
Applicants: RHODIA UK LIMITED [GB/GB]; Oak House, Reeds Crescent, Watford Hertfordshire WD24 4QP (GB) (For All Designated States Except US).
JONES, Chris [GB/GB]; (GB) (For US Only).
HARDY, Julie [GB/GB]; (GB) (For US Only)
Inventors: JONES, Chris; (GB).
HARDY, Julie; (GB)
Agent: ANDRIEU-SIFFLET, Isabelle; Rhodia Services/Propriété Industrielle, 40 Rue De La Haie-coq, F-93306 Aubervilliers Cedex (FR)
Priority Data:
0502762.8 10.02.2005 GB
Title (EN) PHOSPHOROUS-CONTAINING SPECIES FOR USE IN SLUDGE CONTROL
(FR) ESPECE CONTENANT DU PHOSPHORE DANS LE CONTRÔLE DES BOUES
Abstract: front page image
(EN)The invention relates to a method of controlling sludge formation caused by ferric ions in a crude oil extraction process under acid stimulation conditions. According to the invention, an effective quantity of an alkylated phosphonic acid or an ester of same or an aminophosphonate is added to the stimulation liquid or the formation fluids.
(FR)On met à disposition un procédé en vue du contrôle de la formation de boue induite par les ions ferriques dans un processus d'extraction de pétrole brut dans des conditions de stimulation acides. Le procédé comprend l'addition au liquide de stimulation ou aux fluides de formation d'une quantité efficace d'un acide phosphonique alkylé ou d'un ester de ce dernier ou d'un aminophosphonate.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, 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)