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1. (CA2848383) METHODS OF FLUID LOSS CONTROL, DIVERSION, AND SEALING USING DEFORMABLE PARTICULATES

Office : Canada
Application Number: 2848383 Application Date:
Publication Number: 2848383 Publication Date: 11.04.2013
Grant Number: Grant Date: 26.04.2016
Publication Kind : C
Prior PCT appl.: Application Number:PCTUS2012055100 ; Publication Number: Click to see the data
IPC:
E21B 33/138
E21B 47/26
C09K 8/42
C09K 8/516
C09K 8/70
C09K 8/76
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
33
Sealing or packing boreholes or wells
10
in the borehole
13
Methods or devices for cementing, for plugging holes, crevices, or the like
138
Plastering the borehole wall; Injecting into the formation
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
47
Survey of boreholes or wells
26
Storing data down-hole, e.g. in a memory or on a record carrier
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
42
Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
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
50
Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
516
characterised by their form or by the form of their components, e.g. encapsulated material
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
70
characterised by their form or by the form of their components, e.g. foams
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
72
Eroding chemicals, e.g. acids
74
combined with additives added for specific purposes
76
for preventing or reducing fluid loss
CPC:
C09K 8/035
C09K 8/508
Applicants: HALLIBURTON ENERGY SERVICES, INC.
Inventors:
Priority Data: 13/252,349 04.10.2011 US
Title: (EN) METHODS OF FLUID LOSS CONTROL, DIVERSION, AND SEALING USING DEFORMABLE PARTICULATES
(FR) PROCEDES DE REDUCTION DE PERTE DE FLUIDE, DE DEVIATION ET D'ETANCHEIFICATION UTILISANT DES MATIERES PARTICULAIRES DEFORMABLES
Abstract:
(EN) Method including the steps of providing a treatment fluid that comprises a base fluid and polymeric particulates wherein the polymeric particulates comprise a degradable polymer and a plasticizer and exhibit a Tg above about -15°C; introducing the treatment fluid into a subterranean formation having a temperature above about 65°C such that the particulates transform from rigid to malleable form and are able to provide fluid loss, seal the rock surfaces for fluid diversion, or plug an area along the annulus of a well bore; and, degrading the malleable particulates over time in the subterranean formation.


Also published as:
EP2748275AU2012319068WO/2013/052252