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1. (WO2005014977) APPARATUS AND METHOD FOR MEASURING CONCENTRATIONS OF SCALE-FORMING IONS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/014977    International Application No.:    PCT/GB2004/003040
Publication Date: 17.02.2005 International Filing Date: 12.07.2004
IPC:
E21B 47/10 (2012.01), G01N 17/00 (2006.01), G01N 33/18 (2006.01)
Applicants: SCHLUMBERGER HOLDINGS LIMITED; PO Box 71, Craigmuir Chambers, Road Twon, Tortola (VG) (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NA, NE, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SI, SK, SL, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW only).
SCHLUMBERGER CANADA LIMITED [CA/CA]; 525 - 3rd Avenue S.W., Calgary, Alberta T2P 0G4 (CA) (CA only).
SERVICES PETROLIERS SCHLUMBERGER [FR/FR]; 42, rue Saint Dominique, F-75007 Paris (FR) (FR only).
JIANG, Li [GB/GB]; (GB) (For US Only).
JONES, Timothy, Gareth, John [GB/GB]; (GB) (For US Only).
MEREDITH, Andrew [GB/GB]; (GB) (For US Only).
PAGELS, Markus [DE/GB]; (GB) (For US Only).
DE SILVA, Amilra, Prasanna [GB/GB]; (GB) (For US Only)
Inventors: JIANG, Li; (GB).
JONES, Timothy, Gareth, John; (GB).
MEREDITH, Andrew; (GB).
PAGELS, Markus; (GB).
DE SILVA, Amilra, Prasanna; (GB)
Agent: MIRZA, Akram, Karim; Intellectual Property Law Department, Schlumberger Cambridge Research Limited, High Cross, Madingley Road, Cambridge CB3 0EL (GB)
Priority Data:
0317260.8 24.07.2003 GB
Title (EN) APPARATUS AND METHOD FOR MEASURING CONCENTRATIONS OF SCALE-FORMING IONS
(FR) APPAREIL ET PROCEDE DE MESURE DE CONCENTRATIONS D'IONS ENTARTRANTS
Abstract: front page image
(EN)This invention relates to methods and apparatus for determination of ion concentrations, particularly in downhole water from hydrocarbon wells, aquifers etc. It is useful in a wide range of applications, including predicting the formation of scale and fingerprinting waters from different sources. More particularly, the invention relates to the use of ligands whose electronic configuration is altered by the binding of the scaling ions within a water sample. These alterations are detected, for example by electrochemical means, and are indicative of the concentration of scaling ions in the sample.
(FR)L'invention concerne des procédés et un appareil de détermination de concentrations ioniques, notamment, dans de l'eau de fond provenant de puits pétrolifères, d'aquifères etc. Lesdits procédés sont utilisés dans une importante gamme d'applications, notamment, la prédiction de la formation de tartre et d'eaux d'empreinte provenant de différentes sources. Plus spécifiquement, cette invention a trait à l'utilisation de ligands dont la configuration électronique est modifiée par la liaison d'ions entartrants au sein d'un échantillon d'eau. Ces modifications sont détectées, par exemple, par un dispositif électrochimique, et elles indiquent la concentration d'ions entartrants dans l'échantillon.
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, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, 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, IT, LU, 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: English (EN)
Filing Language: English (EN)