High temperature wellbore cement slurry
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United States of America Patent
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Jul 13, 1993
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N/A
app pub date -
Jun 12, 1992
filing date -
Jun 12, 1992
priority date (Note) -
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Abstract
A cement slurry is provided which is useful to cement wellbores in high temperature service. A high alumina cement is used. The density of the slurry is relatively low as a result of using a low density aggregate. In a preferred embodiment, the low density aggregate is graphite. The graphite additionally imparts a significantly improved thermal and electrical conductivity to the hardened cement.
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