In-situ polyphosphazene generation in cement for improved elastic properties
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United States of America Patent
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May 14, 2024
Grant Date -
Jul 7, 2022
app pub date -
Jan 5, 2021
filing date -
Jan 5, 2021
priority date (Note) -
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Abstract
A composition of matter may include a cement precursor, a phosphazene oligomer and water. A method may include blending a phosphazene oligomer and a cement precursor to form a cement precursor mixture. The method may then include introducing water into the cement precursor mixture to form the cement slurry. A composition of matter may include a cured cement matrix having a polyphosphazene polymer distributed throughout the cement matrix. A method may include cementing a wellbore by introducing a cement slurry into a wellbore, where the cement slurry includes a phosphazene oligomer. The method then includes maintaining the cement slurry such that a cured cement sheath forms, the cement sheath having a polyphosphazene polymer.
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