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1. (AU2017217194) Method for providing zonal isolation in an underground wellbore

Office : Australia
Application Number: 2017217194 Application Date: 06.02.2017
Publication Number: 2017217194 Publication Date: 17.08.2017
Publication Kind : B2
Prior PCT appl.: Application Number:EP2017052539 ; Publication Number: Click to see the data
IPC:
C09K 8/46
C04B 26/04
C04B 26/32
C09K 8/44
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
46
containing inorganic binders, e.g. Portland cement
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
26
Compositions of mortars, concrete or artificial stone, containing only organic binders
02
Macromolecular compounds
04
obtained by reactions only involving carbon-to-carbon unsaturated bonds
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
26
Compositions of mortars, concrete or artificial stone, containing only organic binders
30
Compounds having one or more carbon-to-metal or carbon-to-silicon linkages
32
containing silicon
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
44
containing organic binders only
CPC:
C09K 8/44
C04B 24/005
C04B 24/12
C04B 26/04
C04B 26/06
C04B 26/32
C04B 2103/0062
C04B 2103/105
C04B 2103/12
C04B 2103/22
C09K 8/46
E21B 33/13
E21B 33/14
Applicants: Shell Internationale Research Maatschappij B.V.
Inventors:
Agents: Spruson & Ferguson
Priority Data: 16154699.9 08.02.2016 EP
Title: (EN) Method for providing zonal isolation in an underground wellbore
Abstract: front page image
(EN) Slugs of a cement slurry and of a resin composition are injected into an underground wellbore. The resin composition contains at least a curable resin, a filler, a swelling agent, a curing initiator, and a crosslinking retarding agent. The curing initiator activates the curing in response to temperature. The crosslinking retarding agent delays curing of the resin, to permit pumping the composition into the wellbore. After injection, the cement slurry and resin composition are allowed to cure, to create a stacked cement and cured resin column that provides a zonal isolation seal within the wellbore. The resin composition may suitably be an elastomer-forming composition. The cured resin may be swellable by allowing contact with a wellbore fluid.
Also published as:
BR112018016025US20190062616WO/2017/137354