Gas-generating additives having improved shelf lives for use in cement compositions
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United States of America Patent
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Jan 6, 2009
Grant Date -
Dec 21, 2006
app pub date -
Jun 15, 2005
filing date -
Jun 15, 2005
priority date (Note) -
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Abstract
hydrocarbon for increasing a shelf life of the gas-generating material. In yet more embodiments, cement compositions comprise: a cement; a fluid for making the cement composition pumpable; a hydrogen-generating material at least partially coated with a mixture for delaying a hydrogen-generating reaction, the mixture comprising sorbitan monooleate and an isoparaffin.
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