Cementing a wellbore using cementing material encapsulated in a shell
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United States of America Patent
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Aug 16, 2016
Grant Date -
Apr 16, 2015
app pub date -
Oct 16, 2013
filing date -
Oct 16, 2013
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Abstract
A system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid and the fluid with capsules is circulated through the pipe into the space between the wellbore and the pipe. The shell is breached once the capsules contain the cementing material are in position in the space between the wellbore and the pipe.
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