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1. MYPI 2017703191 - CEMENT SPACER SYSTEM FOR WELLBORES, METHODS OF MAKING, AND METHODS OF USE

Office Malaysia
Application Number PI 2017703191
Application Date 10.03.2015
Publication Number PI 2017703191
Publication Date 10.09.2016
Publication Kind A
Applicants BAKER HUGHES, A GE COMPANY, LLC
Agents TIMOTHY SIAW YEAN HWA
Priority Data 2016/020431 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