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1. (EP2809742) CELLULOSE NANOWHISKERS IN WELL SERVICES

Office : European Patent Office
Application Number: 13744049 Application Date: 31.01.2013
Publication Number: 2809742 Publication Date: 10.12.2014
Publication Kind : B1
Designated States: AL, AT, BA, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, ME, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
Prior PCT appl.: Application Number:US2013024061 ; Publication Number: Click to see the data
IPC:
C09K 8/64
C09K 8/58
E21B 43/22
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
60
Compositions for stimulating production by acting on the underground formation
62
Compositions for forming crevices or fractures
64
Oil-based compositions
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
58
Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
E FIXED CONSTRUCTIONS
21
EARTH OR ROCK DRILLING; MINING
B
EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
43
Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
16
Enhanced recovery methods for obtaining hydrocarbons
22
Use of chemicals or bacterial activity
CPC:
C09K 8/10
C04B 18/24
C04B 28/02
C09K 8/467
C09K 8/70
C09K 2208/10
Y02W 30/97
Applicants: HALLIBURTON ENERGY SERVICES INC
Inventors: RINCON-TORRES MARCO TULIO
HALL LEE J
Priority Data: 201213561158 30.07.2012 US
201261592921 31.01.2012 US
2013024061 31.01.2013 US
Title: (DE) CELLULOSE-NANOWHISKERS IN BOHRLOCHDIENSTEN
(EN) CELLULOSE NANOWHISKERS IN WELL SERVICES
(FR) NANOCRISTALLITES DE CELLULOSE DANS DES PRÉPARATIONS DE PUITS
Abstract:
(EN) A method is provided for use in various well services, the method including the steps of: (a) forming or providing a well fluid comprising cellulose nanowhiskers; and (b) introducing the well fluid into a well. The method can be used, for example, for increasing the strength of a cement, for increasing the viscosity of a water-based well fluid, such as for a kill pill, a fracturing fluid, a gravel packing fluid.
(FR) La présente invention concerne un procédé destiné à être utilisé lors de diverses préparations de puits, le procédé comprenant les étapes consistant à : (a) former ou fournir un fluide de puits comprenant des nanocristallites de cellulose ; et (b) introduire le fluide de puits dans un puits. Le procédé peut être utilisé, par exemple, pour augmenter la résistance d'un ciment, pour augmenter la viscosité d'un fluide de puits à base d'eau, notamment pour un bouchon d'injection, une boue de fracturation, un fluide de filtres à graviers.
Also published as:
CA2862032EA201490868AU2013215081BR112014017744WO/2013/116470