Biodegradable dispersants for cement compositions and...

Compositions: coating or plastic – Coating or plastic compositions – Inorganic settable ingredient containing

Reexamination Certificate

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Reexamination Certificate

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11205920

ABSTRACT:
Hydraulic cement compositions are provided that include a cement, water; and a dispersant that comprises a low molecular weight starch with anionic groups. The starch dispersants provided may possess desirable biodegradable properties making them particularly suitable for certain downhole well operations.

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