Methods for Plug Cementing
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United States of America Patent
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Issued Date -
Mar 20, 2014
app pub date -
Sep 20, 2012
filing date -
Nov 21, 2011
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Abandoned
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Abstract
Compositions comprise polyacrylamide, a non-metallic crosslinker and a pH-adjustment material. Such compositions have utility in the context of remedial cementing, plug cementing in particular. The compositions may be pumped into a subterranean well, where they polymerize and form a support on which a cement plug may sit. The support may maintain the position of the cement plug in the wellbore and minimize cement-plug contamination.
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