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Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2008/102122    International Application No.:    PCT/GB2008/000564
Publication Date: 28.08.2008 International Filing Date: 19.02.2008
C09K 8/12 (2006.01), C09K 8/22 (2006.01), C09K 8/506 (2006.01), C09K 8/52 (2006.01), C09K 8/60 (2006.01), C09K 8/68 (2006.01)
Applicants: SCHLUMBERGER TECHNOLOGY B.V. [NL/NL]; Parkstraat 83-89, NL-2514 JG The Hague (NL) (AL, AU, AZ, BG, CO, CZ, DE, DK, GQ, GR, HU, ID, IE, IL, IT, KR, KZ, LT, MX, NO, NZ, OM, PL, RO, RU, SI, SK, TD, TM, TN, TR, TT, UZ, ZA only).
SCHLUMBERGER HOLDINGS LIMITED [--/--]; PO Box 71, Craigmuir Chambers, Road Town, Tortola (VG) (GB, JP, NL only).
SCHLUMBERGER CANADA LIMITED [CA/CA]; 525 - 3rd Avenue S.W., Calgary, Alberta T2F 0G4 (CA) (CA only).
SERVICES PETROLIERS SCHLUMBERGER [FR/FR]; 42, rue Sant Dominique, F-75007 Paris (FR) (FR only).
PRAD RESEARCH AND DEVELOPMENT N.V. [NL/NL]; De Ruyterkade 62, Willemstad Curacao (NL) (AE, AG, AM, AO, AT, BA, BB, BE, BF, BH, BJ, BR, BW, BY, BZ, CF, CG, CH, CI, CM, CN, CR, CU, CY, DM, DO, DZ, EC, EE, EG, ES, FI, GA, GD, GE, GH, GM, GN, GT, GW, HN, HR, IN, IS, KE, KG, KM, KN, KP, LA, LC, LK, LR, LS, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MY, MZ, NA, NE, NG, NI, PG, PH, PT, RS, SC, SD, SE, SG, SL, SM, SN, SV, SY, SZ, TG, TJ, TZ, UA, UG, VC, VN, ZM, ZW only).
HUGHES, Trevor, Lloyd [GB/GB]; (GB) (For US Only).
JONES, Timothy, Gareth, John [GB/GB]; (GB) (For US Only).
TUSTIN, Gary, John [GB/GB]; (GB) (For US Only).
WESTWOOD, James, Francis [GB/GB]; (GB) (For US Only)
Inventors: HARTSHORNE, ROBERT, Seth; (GB).
HUGHES, Trevor, Lloyd; (GB).
JONES, Timothy, Gareth, John; (GB).
TUSTIN, Gary, John; (GB).
WESTWOOD, James, Francis; (GB)
Agent: GAHLINGS, Steven, A.; Intellectual Property Law Department, Schlumberger Cambridge Research Limited, High Cross, Madingley Road, Cambridge CB3 0EL (GB)
Priority Data:
0703544.7 23.02.2007 GB
Abstract: front page image
(EN)A water-based wellbore treatment fluid contains: one or more viscoelastic-gelling carboxylic acids and/or alkali metal salts thereof; and one or more solubilising alkylolamines. The carboxylic acids and/or alkali metal salts and the alkylolamines are present in the fluid in respective amounts such that, at 25°C, the alkylolamines solubilise a sufficient portion of the carboxylic acids and/or alkali metal salts to render the fluid viscoelastic. A remaining portion of the carboxylic acids and/or alkali metal salts forms a suspension of solid particulates in the fluid.
(FR)L'invention porte sur un fluide de traitement de puits de forage à base d'eau. Ledit traitement contient : un ou plusieurs acides carboxyliques et/ou sels de métaux alcalins de ceux-ci, à gélification visco-élastique; et une ou plusieurs alkylolamines solubilisantes. Les acides carboxyliques et/ou leurs sels de métaux alcalins et les alkylolamines sont présents dans le fluide dans des quantités respectives telles qu'à 25°C, les alkylolamines solubilisent une partie suffisante des acides carboxyliques et/ou de leurs sels de métaux alcalins pour rendre le fluide visco-élastique. Une partie restante des acides carboxyliques et/ou de leurs sels de métaux alcalins forme une suspension de particules solides dans le fluide.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, 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: English (EN)
Filing Language: English (EN)