Control of the properties of cement slurries with optimized...

Details Control of the properties of cement slurries with optimized... Control of the properties of cement slurries with optimized...

2008-12-17

2010-12-28

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Cementing, plugging or consolidating

C106S805000

Reexamination Certificate

active

07857053

ABSTRACT:
A cement slurry composition for cementing a well comprising: a hydraulic cement, water and a combination made of a hydroxyethyl cellulose and an acrylamido-methyl-propane sulfonate-acrylamide copolymer. Provided is also a method for cementing a well involving such cement slurry composition. The composition provides a solution to decouple the fluid-loss control and the slurry rheologyfor cement for slurry and particularly for extended cement slurry.

REFERENCES:
patent: 4557763 (1985-12-01), George et al.
patent: 4674574 (1987-06-01), Savoly et al.
patent: 2005/0034864 (2005-02-01), Caveny et al.
patent: 2008/0308275 (2008-12-01), Brothers et al.
patent: 2009/0099047 (2009-04-01), Cunningham et al.

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