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1. (WO2003006572) METHOD OF INCREASING pH OF HIGH-DENSITY BRINES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2003/006572    International Application No.:    PCT/US2002/022037
Publication Date: 23.01.2003 International Filing Date: 11.07.2002
Chapter 2 Demand Filed:    10.02.2003    
IPC:
C09K 8/04 (2006.01), C09K 8/54 (2006.01)
Applicants: BAKER HUGHES INCORPORATED [US/US]; 3900 Essex Lane, Suite 1200, Houston, TX 77027 (US)
Inventors: WALKER, Michael, L.; (US)
Agent: LITTLEFIELD, Stephen, A.; Baker Petrolite Division, Baker Hughes Incorporated, 12645 West Airport Boulevard, Sugar Land, TX 77478 (US)
Priority Data:
60/305,036 11.07.2001 US
10/192,023 10.07.2002 US
Title (EN) METHOD OF INCREASING pH OF HIGH-DENSITY BRINES
(FR) PROCEDE POUR L'AUGMENTATION DU PH DE SAUMURES HAUTE DENSITE
Abstract: front page image
(EN)It has been discovered that carbonate powders and bicarbonate powders are useful to increase the pH and corrosion resistance of high-density brines, such as zinc bromide brines, without significantly reducing their densities. The carbonates and/or bicarbonates should be water-soluble and may be sodium, potassium, magnesium and/or ammonium carbonates and/or bicarbonates and the like. The carbonates and/or bicarbonates are easily added in powder or other finely divided solid form.
(FR)On a découvert que des poudres de carbonate et des poudres de bicarbonate permettent d'augmenter le pH et la résistance à la corrosion de saumures haute densité, comme les saumures de bromure de zinc, sans réduire notablement leur densité. Les carbonates ou les bicarbonates doivent être solubles dans l'eau et peuvent être des carbonates ou des bicarbonates de sodium, de potassium, de magnésium ou d'ammonium et des produits similaires. L'ajout de ces carbonates ou bicarbonates se fait aisément sous la forme de poudre ou sous une autre forme solide finement divisée.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, 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, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, 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, IE, IT, LU, MC, NL, PT, SE, 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)