Settable, form-filling loss circulation control compositions comprising in situ foamed calcium aluminate cement systems and methods of using them
First Claim
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1. A foamed cementitious composition, comprising:
- calcium aluminate;
a nitrogen gas-generating compound;
an amine activator to accelerate generation of gas from the nitrogen gas-generating compound, the amine activator comprising an ethyleneamine; and
a foam surfactant.
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Abstract
This document relates to settable, hydraulic, non-Portland foamed cement compositions comprising nitrogen gas-generating compositions used for loss circulation control.
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Citations
15 Claims
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1. A foamed cementitious composition, comprising:
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calcium aluminate; a nitrogen gas-generating compound; an amine activator to accelerate generation of gas from the nitrogen gas-generating compound, the amine activator comprising an ethyleneamine; and a foam surfactant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification