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Machine translation
1. (WO2010031993) INHIBITIVE WATER-BASED DRILLING FLUID SYSTEM AND METHOD FOR DRILLING SANDS AND OTHER WATER-SENSITIVE FORMATIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/031993    International Application No.:    PCT/GB2009/002165
Publication Date: 25.03.2010 International Filing Date: 10.09.2009
IPC:
C09K 8/12 (2006.01), C09K 8/52 (2006.01)
Applicants: HALLIBURTON ENERGY SERVICES, INC. [US/US]; P.O. Box 1431 Duncan, OK 73536 (US) (For All Designated States Except US).
CARBAJAL, David, L. [US/US]; (US) (For US Only).
SHUMWAY, William [US/US]; (US) (For US Only).
EZELL, Ryan, G. [US/US]; (US) (For US Only).
CURTIS, Philip, Anthony [GB/GB]; (GB) (MW only)
Inventors: CARBAJAL, David, L.; (US).
SHUMWAY, William; (US).
EZELL, Ryan, G.; (US)
Agent: CURTIS, Philip, Anthony; A. A. Thomton & Co 235 High Holborn London WC1V 7LE (GB)
Priority Data:
12/284,272 19.09.2008 US
Title (EN) INHIBITIVE WATER-BASED DRILLING FLUID SYSTEM AND METHOD FOR DRILLING SANDS AND OTHER WATER-SENSITIVE FORMATIONS
(FR) SYSTÈME DE FLUIDE DE FORAGE INHIBITEUR À BASE D'EAU ET PROCÉDÉ DE FORAGE DE SABLES ET AUTRES FORMATIONS SENSIBLES À L'EAU
Abstract: front page image
(EN)An inhibitive water-based polymer mud system and method for using the system in drilling and in stabilizing wellbores is disclosed for use in water sensitive formations as an alternative to oil-based muds. The system comprises a substantially non-ionic low molecular weight polyacrylamide in combination with a substantially non-ionic high molecular weight polyacrylamide, preferably long chain alcohol or an amine or silicate shale inhibitor, and poly anionic cellulose.
(FR)L'invention concerne un système de boue polymère inhibiteur à base d'eau et un procédé d'utilisation du système pour le forage et la stabilisation de puits de forage, ledit système étant destiné à être utilisé dans des formations sensibles à l'eau comme alternative aux boues à base d'huile. Le système comprend un polyacrylamide sensiblement non ionique de faible poids moléculaire associé à un polyacrylamide sensiblement non ionique de poids moléculaire élevé, de préférence un alcool à longue chaîne ou un inhibiteur du gonflement des argiles schisteuses à base d'amine ou de silicate, et de la cellulose polyanionique.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, 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, MK, MT, NL, NO, PL, PT, RO, 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: English (EN)
Filing Language: English (EN)