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1. IN201717034355 - CEMENT SPACER SYSTEM FOR WELLBORES METHODS OF MAKING AND METHODS OF USE

Office India
Application Number 201717034355
Application Date 27.09.2017
Publication Number 201717034355
Publication Date 15.12.2017
Publication Kind A
IPC
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 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
Applicants BAKER HUGHES A GE COMPANY LLC
Inventors NELSON Scott Gregory
Priority Data 14643117 10.03.2015 US
Title
(EN) CEMENT SPACER SYSTEM FOR WELLBORES METHODS OF MAKING AND METHODS OF USE
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.

Also published as
GB1715744.7
KZ2017/0788.1
KZ33631
NO20171535
SA517382234