Methods of generating gas in and foaming well cement compositions
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United States of America Patent
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Feb 22, 2005
Grant Date -
N/A
app pub date -
May 31, 2002
filing date -
May 31, 2002
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Expired
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Abstract
The present invention relates to methods of generating gas in and forming cement compositions that may be introduced into a subterranean zone. A method of the present invention provides a method of generating gas in a cement composition that comprises providing the cement composition comprising a hydraulic cement and water; providing an oxidizing agent; providing at least one gas generating chemical; and contacting the cement composition with the oxidizing agent and/or the gas generating chemical downstream of at least one cement pump so that a gas is generated in the cement composition downstream of at least one cement pump. Methods of foaming cement compositions are also provided.
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