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1. WO2016144645 - CEMENT SPACER SYSTEM FOR WELLBORES, METHODS OF MAKING, AND METHODS OF USE

Publication Number WO/2016/144645
Publication Date 15.09.2016
International Application No. PCT/US2016/020431
International Filing Date 02.03.2016
IPC
C09K 8/40 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
40Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
CPC
C04B 2103/0043
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2103Function or property of ingredients for mortars, concrete or artificial stone
0041Non-polymeric ingredients chosen for their physico-chemical characteristics
0043Compounds chosen for their specific Moh's hardness
C04B 28/02
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
28Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
02containing hydraulic cements other than calcium sulfates
C09K 8/40
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
40Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
C09K 8/424
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
42Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
424using "spacer" compositions
C09K 8/467
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
8Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
42Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
46containing inorganic binders, e.g. Portland cement
467containing additives for specific purposes
Applicants
  • BAKER HUGHES, A GE COMPANY, LLC [US]/[US]
Inventors
  • NELSON, Scott Gregory
Priority Data
14/643,11710.03.2015US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CEMENT SPACER SYSTEM FOR WELLBORES, METHODS OF MAKING, AND METHODS OF USE
(FR) SYSTÈME D'ÉCARTEMENT À BASE DE CIMENT POUR PUITS DE FORAGE, PROCÉDÉS DE PRÉPARATION ET PROCÉDÉS D'UTILISATION
Abstract
(EN)
A cement spacer fluid for use in a wellbore includes an aqueous cement spacer carrier fluid and a preformed synthetic polymer swellable in the aqueous cement spacer carrier fluid in an amount effective to displace a drilling fluid during a cementing operation. Preferably, the polymer is particulate, and forms a hydrated pack of particles. A method of cementing a wellbore comprising a drilling fluid includes injecting the cement spacer fluid into the wellbore to displace the drilling fluid; injecting a cement slurry into the wellbore subsequent to injecting the cement spacer fluid; and hardening the cement in the slurry to cement the wellbore.
(FR)
L'invention concerne un fluide d'écartement à base de ciment destiné à être utilisé dans un puits de forage, comprenant un fluide support aqueux d'écartement à base de ciment et un polymère synthétique préformé gonflable dans le fluide support aqueux d'écartement à base de ciment en une quantité efficace pour déplacer un fluide de forage pendant une opération de cimentation. De préférence, le polymère est particulaire et forme un paquet hydraté de particules. L'invention concerne également un procédé de cimentation d'un puits de forage comprenant un fluide de forage, consistant à : injecter le fluide d'écartement à base de ciment dans le puits de forage pour déplacer le fluide de forage; injecter une suspension de ciment dans le puits de forage après l'injection du fluide d'écartement à base de ciment; et durcir le ciment dans la suspension afin de cimenter le puits de forage.
Also published as
GB1715744.7
KZ2017/0788.1
KZ33631
NO20171535
SA517382234
Latest bibliographic data on file with the International Bureau