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1. (WO1997019145) WELL FLUID
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/019145 International Application No.: PCT/EP1996/005128
Publication Date: 29.05.1997 International Filing Date: 21.11.1996
Chapter 2 Demand Filed: 16.06.1997
IPC:
C07H 15/04 (2006.01) ,C09K 8/20 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
H
SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
15
Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
02
Acyclic radicals, not substituted by cyclic structures
04
attached to an oxygen atom of a saccharide radical
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
02
Well-drilling compositions
04
Aqueous well-drilling compositions
14
Clay-containing compositions
18
characterised by the organic compounds
20
Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
Applicants:
LAMBERTI S.P.A. [IT/IT]; Via Piave, 18 I-21041 Albizzate, IT (AllExceptUS)
NICORA, Luigi [IT/IT]; IT (UsOnly)
GRAZIOSI, Marco [IT/IT]; IT (UsOnly)
PIROVANO, Pierangelo [IT/IT]; IT (UsOnly)
Inventors:
NICORA, Luigi; IT
GRAZIOSI, Marco; IT
PIROVANO, Pierangelo; IT
Agent:
GERVASI, Gemma; Notarbartolo & Gervasi S.r.l. Corso di Porta Vittoria, 9 I-20122 Milan, IT
Priority Data:
MI95A00242222.11.1995IT
Title (EN) WELL FLUID
(FR) FLUIDE DE FORAGE
Abstract:
(EN) The invention concerns water based well fluids, having high resistance to fluid loss and temperature, comprising water soluble polymers in combination with alkyl(poly)glycosides, suitable for the use in hydrocarbon research, in water bed research, in geognostic drilling and in civil engineering operations.
(FR) L'invention concerne des fluides de forage à base d'eau présentant une bonne résistance aux pertes et à la chaleur, comprenant des polymères solubles en combinaison avec des alkyl(poly)glycosides, convenant à la recherches d'hydrocarbures et de de nappes aquifères, pour exécuter des forages d'études géologiques et dans les opérations de génie civil.
Designated States: AL, AM, AU, AZ, BA, BB, BG, BR, BY, CA, CN, CU, CZ, EE, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, RO, RU, SD, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
NO19982318EP0862603CA2237855AU1996076949