Cementing compositions including a dispersant agent for...

Details Cementing compositions including a dispersant agent for... Cementing compositions including a dispersant agent for...

2005-10-11

2005-10-11

Kreck, John (Department: 3673)

Wells

Processes

Cementing, plugging or consolidating

C166S901000, C106S709000

Reexamination Certificate

active

06953091

ABSTRACT:
The invention concerns a cementing composition for cold zones cementing operations in an oil well or analogous, said composition comprising a aqueous fluid base, solid particles including cement particles, and a dispersing agent in solution in the aqueous fluid base, said dispersing agent having a comb-like structure composed of a graft copolymer, said graft copolymer being constituted by a backbone carrying grafted chains.

REFERENCES:
patent: 6312515 (2001-11-01), Barlet-Gouedard et al.
patent: 0271435 (1988-06-01), None
patent: WO-99/47468 (1999-09-01), None

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