Methods of plugging and abandoning a well using compositions comprising cement kiln dust and pumicite
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United States of America Patent
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Nov 13, 2012
Grant Date -
Oct 14, 2010
app pub date -
Jun 23, 2010
filing date -
Sep 9, 2005
priority date (Note) -
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Abstract
The present invention is directed to plug-and-abandon operations that use plugging compositions comprising cement kiln dust, pumicite, and/or lime. An embodiment includes a method of plugging a well bore for abandonment comprising: placing a plugging composition in the well bore, the plugging composition comprising: cement kiln dust in an amount of about 5% to about 100% by weight of cementitious components, pumicite in an amount of about 5% to about 100% by weight of cementitious components, 0% to about 24% of Portland cement by weight of cementitious components, and water; and allowing the plugging composition to set and form a plug.
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